Thematische Bibliographien / Magneto-acoustic

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Auswahl der wissenschaftlichen Literatur zum Thema „Magneto-acoustic“

Autor: Grafiati

Veröffentlicht am 25. Mai 2024

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Zeitschriftenartikel zum Thema "Magneto-acoustic"

AMMARI, HABIB, YVES CAPDEBOSCQ, HYEONBAE KANG und ANASTASIA KOZHEMYAK. „Mathematical models and reconstruction methods in magneto-acoustic imaging“. European Journal of Applied Mathematics 20, Nr. 3 (Juni 2009): 303–17. http://dx.doi.org/10.1017/s0956792509007888.

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In this paper, we provide the mathematical basis for three different magneto-acoustic imaging approaches (vibration potential tomography, magneto-acoustic tomography with magnetic induction and magneto-acoustic current imaging) and propose new algorithms for solving the inverse problem for each of them.

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Roth, Bradley J. „Magneto-Acoustic Imaging in Biology“. Applied Sciences 13, Nr. 6 (18.03.2023): 3877. http://dx.doi.org/10.3390/app13063877.

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This review examines the use of magneto-acoustic methods to measure electrical conductivity. It focuses on two techniques developed in the last two decades: Magneto-Acoustic Tomography with Magnetic Induction (MAT-MI) and Magneto-Acousto-Electrical Tomography (MAET). These developments have the potential to change the way medical doctors image biological tissue.

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Qu, Min, Srivalleesha Mallidi, Mohammad Mehrmohammadi, Ryan Truby, Kimberly Homan, Pratixa Joshi, Yun-Sheng Chen, Konstantin Sokolov und Stanislav Emelianov. „Magneto-photo-acoustic imaging“. Biomedical Optics Express 2, Nr. 2 (21.01.2011): 385. http://dx.doi.org/10.1364/boe.2.000385.

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Li, Jinxing, Tianlong Li, Tailin Xu, Melek Kiristi, Wenjuan Liu, Zhiguang Wu und Joseph Wang. „Magneto–Acoustic Hybrid Nanomotor“. Nano Letters 15, Nr. 7 (19.06.2015): 4814–21. http://dx.doi.org/10.1021/acs.nanolett.5b01945.

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Guyot, M., und V. Cagan. „The magneto‐acoustic emission (invited)“. Journal of Applied Physics 73, Nr. 10 (15.05.1993): 5348–53. http://dx.doi.org/10.1063/1.353728.

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Drummond James, E. „5402786 Magneto-acoustic resonance imaging“. Magnetic Resonance Imaging 13, Nr. 6 (Januar 1995): XXIV—XXV. http://dx.doi.org/10.1016/0730-725x(95)96707-i.

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Khantadze, A. G., G. V. Jandieri, A. Ishimaru, T. D. Kaladze und Zh M. Diasamidze. „Electromagnetic oscillations of the Earth's upper atmosphere (review)“. Annales Geophysicae 28, Nr. 7 (01.07.2010): 1387–99. http://dx.doi.org/10.5194/angeo-28-1387-2010.

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Abstract. A complete theory of low-frequency MHD oscillations of the Earth's weakly ionized ionosphere is formulated. Peculiarities of excitation and propagation of electromagnetic acoustic-gravity, MHD and planetary waves are considered in the Earth's ionosphere. The general dispersion equation is derived for the magneto-acoustic, magneto-gravity and electromagnetic planetary waves in the ionospheric E- and F-regions. The action of the geomagnetic field on the propagation of acoustic-gravity waves is elucidated. The nature of the existence of the comparatively new large-scale electromagnetic planetary branches is emphasized.

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Zharkov, S., S. Shelyag, V. Fedun, R. Erdélyi und M. J. Thompson. „Photospheric high-frequency acoustic power excess in sunspot umbra: signature of magneto-acoustic modes“. Annales Geophysicae 31, Nr. 8 (06.08.2013): 1357–64. http://dx.doi.org/10.5194/angeo-31-1357-2013.

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Abstract. We present observational evidence for the presence of MHD (magnetohydrodynamic) waves in the solar photosphere deduced from SOHO/MDI (Solar and Heliospheric Observatory/Michelson Doppler Imager) Dopplergram velocity observations. The magneto-acoustic perturbations are observed as acoustic power enhancement in the sunspot umbra at high-frequency bands in the velocity component perpendicular to the magnetic field. We use numerical modelling of wave propagation through localised non-uniform magnetic field concentration along with the same filtering procedure as applied to the observations to identify the observed waves. Guided by the results of the numerical simulations we classify the observed oscillations as magneto-acoustic waves excited by the trapped sub-photospheric acoustic waves. We consider the potential application of the presented method as a diagnostic tool for magnetohelioseismology.

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Adamashvili, G. T., und A. A. Maradudin. „Nonlinear magneto-acoustic waves in ferromagnets“. Journal of Applied Physics 79, Nr. 8 (1996): 5727. http://dx.doi.org/10.1063/1.362232.

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Sytcheva, A., U. Löw, S. Yasin, J. Wosnitza, S. Zherlitsyn, T. Goto, P. Wyder und B. Lüthi. „Magneto-Acoustic Faraday Effect in Tb3Ga5O12“. Journal of Low Temperature Physics 159, Nr. 1-2 (06.01.2010): 126–29. http://dx.doi.org/10.1007/s10909-009-0082-x.

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Dissertationen zum Thema "Magneto-acoustic"

Kuszewski, Piotr. „Optical detection of magneto-acoustic dynamics“. Electronic Thesis or Diss., Sorbonne université, 2018. http://www.theses.fr/2018SORUS353.

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Ce travail se situe dans le contexte de l’utilisation des ondes de spin comme vecteur d’information. Il explore la possibilité d’exciter l’aimantation dans de fines couches ferromagnétiques grâce au couplage magnéto-élastique. Cela permettrait un adressage non-inductif, efficace, et distant des ondes de spin. Dans un premier volet, nous avons développé un dispositif expérimental générant des ondes acoustiques de surface (ODS) électriquement, verrouillées en phase à des impulsions de laser sonde. La dynamique d’aimantation est détectée grâce aux effets magnéto-optiques (Kerr et Voigt). Nous étudions le couplage magnétoélastique résonant dans une couche mince du semiconducteur magnétique (Ga,Mn)As. Afin d’atteindre la résonance, la fréquence des ondes de spin est ajustée à celle des ODS par un champ magnétique. Nous isolons les contributions photo-élastique et magnéto-optique du signal, pour quantifier l’amplitude de la précession d’aimantation. Nous montrons que la précession observée est exclusivement déclenchée par l’ODS. La variation en champ de son amplitude correspond très bien à celle calculée, et elle est maximum au champ pour laquelle l’absorption de l’ODS est maximale, démontrant clairement la résonance magnétoacoustique. L’influence de la fréquence et de la puissance de l’ODS, ainsi que de la température sur l’efficacité du couplage est également explorée. Dans un deuxième volet, nous avons excité des ODS par effet thermoélastique grâce à un faisceau laser focalisé, et cela sur des couches magnétiques métalliques cette fois-ci (Ni, FeGa, Co), déposées sur un substrat transparent (verre, sapphire). Des cartes spatio-temporelles du déplacement de la surface et du signal magnéto-optique ont été obtenues. Un décalage du spectre magnéto-optique vers les hautes fréquences semble indiquer une excitation des ondes de spin par les ODS
In the developing field of spin wave-based information technology, this work investigates the possibility to use surface acoustic waves (SAW) to excite spin-waves in ferromagnetic thin layers relying on the magnetoelastic coupling. This would provide a non-inductive, efficient, and remote addressing of spin waves. In the first project we develop an experimental setup to generate electrically excited SAWs phase-locked to probe laser pulses. The magnetization dynamics is detected by an optical bridge using magneto-optical effects (Kerr and Voigt). We investigate the resonant magneto-elastic coupling in a thin film of the ferromagnetic semiconductor (Ga,Mn)As. To reach resonant coupling, the spin-wave frequency is scanned across the SAW frequency using a magnetic field. We disentangle the photoelastic contribution from the magneto-optical one, from which we obtain the amplitude of magnetization precession. We show that it is driven solely by the acoustic wave. Its field dependence is shown to agree well with theoretical calculations. Its amplitude resonates at the same field as the resonant attenuation of the acoustic wave, clearly evidencing the magnetoacoustic resonance with high sensitivity. The influence of temperature, SAW frequency and power on the coupling efficiency are studied. In the second project we use SAWs thermoelastically excited by a tightly focused laser beam on ferromagnetic metals (Ni, FeGa, Co) on a transparent substrate (glass, sapphire). Spatio-temporal maps of the surface displacement and magneto-optical signal are obtained. A high-frequency shift of the frequency spectrum of the latter gives a hint for spin-wave excitation by SAWs

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Kennedy, Ian. „Magneto-acoustic response of a 2D carrier system“. Thesis, University of Nottingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285634.

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Buttle, D. J. „Barkhausen and magneto-acoustic emission from ferromagnetic materials“. Thesis, University of Oxford, 1986. http://ora.ox.ac.uk/objects/uuid:73130e7a-43ab-47fb-a531-65b605bf1904.

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Barkhausen emission (B.E.) and Magneto-acoustic emission (M.A.E.) can be detected from specimens in a magnetic field varying at a few millihertz. Comparison of the two signals can indicate the nature of the domain walls responsible for the activity at any particular field. In order to characterize a specimen the strength of the emissions around the hysteresis loop are measured together with the distribution of Barkhausen event sizes. This technique has been used to measure the effects of: (A) Microstructure. Both B.E. and M.A.E. are sensitive to dislocations, and the effects of cold-working and its removal by isochronal annealing has been studied in alpha-iron. A simple model of domain wall pinning is presented which enables the dislocation density to be estimated. M.A.E. and B.E. are also sensitive to the growth of precipitates in Incoloy 904 alloy and, for a certain regime of sizes, can potentially be used to monitor the precipitate diameter. B.E. is sensitive to smaller precipitates (-100 nm) than M.A.E. but, unlike M.A.E., its dependence on precipitate size is not monotonic. An understanding of the signal dependence is obtained from Lorentz microscopy. (B) Radiation damage. The sensitivity of B.E. and M.A.E. to radiation damage is quite small by virtue of the small size of defects present. Nevertheless measurements on neutron irradiated alpha-iron specimens in several microstructural states indicate: (a) an accelerated recovery from the cold-worked condition on isochronal annealing and (b) dissolution of nitrides and carbides which formed in preparatory heat treatments. Measurements on a neutron irradiated iron-copper alloy which was subsequently isochronally annealed indicated effects which were consistent with: (a) removal of dislocation loops formed during irradiation at 550°C and (b) growth of precipitates (probably copper) at 600°C which presumably formed during the irradiation, (i.e. the effect was smaller in unirradiated control specimens). These results suggest that B.E. and M.A.E. might be useful tools for the characterization of radiation effects. (C) Tensile stress. Both B.E. and M.A.E. are sensitive to applied tensile stress and measurements on a number of different materials indicate that the dependence of M.A.E. is monotonic (except in nickel) whereas that of B.E. is generally quite complex. Since the microstructural and stress dependences are often interrelated it would be difficult to use the technique to measure say residual stress in a practical material unless the exact condition of the microstructure could be determined. Consequently B.E. and M.A.E. were measured from mild steel specimens (4360 steel) which had recieved a number of different heat treatments. The effects of applied tensile stress on the amplitude and shape of the B.E. and M.A.E. profiles were investigated with a view to be able to use the M.A.E. to measure stresses without prior knowledge of the microstructure. It was found that certain parameters in the signal profile were much more strongly dependent upon the stress than on the microstructure for many of the material conditions. Therefore M.A.E. is potentially useful for residual stress measurements.

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McEnaney, Kevin Bernard. „Magneto-absorption of surface acoustic waves by a 2-dimensional electron gas“. Thesis, University of Nottingham, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293651.

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Cuellar, Sandra Milena Conde. „3D model magneto-acoustic waves in coronal loops observed during transient events“. Instituto Nacional de Pesquisas Espaciais (INPE), 2017. http://urlib.net/sid.inpe.br/mtc-m21b/2017/05.05.02.33.

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We present a three-dimensional analysis of magneto-acoustic waves, along the seven coronal loops, observed on the active region NOAA 11272 during the class B and C flares. We found 19-, 9-, 5-, 2-, 1-, and 0.6-minute waves using the pixelised wavelet filtering method over images obtained from the Atmospheric Imaging Assembly instrument. We modelled the velocity of these waves along the extrapolated magnetic field lines that reproduce the observed loops in extreme ultraviolet. The extrapolation was made over magnetograms, got from the Helioseismic and Magnetic Imager instrument, using the linear force-free approximation. From our model, we found temperatures 10$^{3}$ (maior equivalente) T (menor equivalente) 1.8 x 10$^{7}$ K and densities 10$^{7}$ (maior equivalente) n (menor equivalente) 10$^{17}$ cm$^{−3}$, covering from photosphere to corona, as expected in the solar atmosphere. Hence, we obtained acoustic c$_{s}$ $\approx$ 10$^{2}$ km s$^{−1}$ and Alfvénic $\upsilon$$_{A}$ $\approx$ 10$^{4}$ km s$^{−1}$ velocities values which are in agreement with the literature. In addition, the brightness asymmetry observed along the coronal loops is explained by the magnetic field and Alfvén velocity distributions along the extrapolated field lines. We found fast magneto-acoustic waves at the beginning of B3.8 and C1.9 flares and slow modes along the loops during all flares. Our 3D model represents an unprecedented method to study waves in coronal loops. All results are coherent with expected values in the solar atmosphere conditions.
Apresentamos uma análise tridimensional de ondas magnetoacústicas ao longo de sete loops coronais, observados na região ativa NOAA 11272 durante os flares de classe B e C. Encontramos ondas de 19, 9, 5, 2, 1 e 0.6 minutos usando o método Pixelised Wavelet Filtering sobre imagens obtidas com o instrumento Atmospheric Imaging Assembly. Modelamos as velocidades dessas ondas ao longo das linhas de campo magnético extrapoladas que reproduzem os loops observados em ultravioleta extremo. A extrapolação foi feita sobre os magnetogramas obtidos com o instrumento Helioseismic and Magnetic Imager, usando a aproximação Linear Force-Free. A partir do nosso modelo, encontramos temperaturas de 10$^{3}$ (maior equivalente) T (menor equivalente) 1.8 x 10$^{7}$ K e densidades de 10$^{7}$ (maior equivalente) n (menor equivalente) 10$^{17}$ cm$^{−3}$, cobrindo desde a fotosfera até a coroa, como esperado na atmosfera solar. Desta forma, obtivemos valores para as velocidades acústica e Alfvénica de c$_{s}$ $\approx$ 10$^{2}$ km s$^{−1}$ e $\upsilon$$_{A}$ $\approx$ 10$^{4}$ km s$^{−1}$ respectivamente, as quais estão acorde com a literatura. Adicionalmente, a assimetria no brilho observada ao longo dos loops coronais é explicada pelas distribuições do campo magnético e da velocidade Alfvén ao longo das linhas extrapoladas. Nós encontramos ondas magnetoacústicas rápidas no inicio dos flares B3.8 e C1.9 e modos lentos ao longo dos loops durante todos os flares. O nosso modelo representa um método inédito para estudar ondas em loops coronais. Todos os resultados são coerentes com os valores esperados nas condições da atmosfera solar.

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Matsouli, Ioanna. „Study of magneto-acoustic effects in FeBOâ†3 by synchrotron radiation diffraction imaging“. Thesis, University of Warwick, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310013.

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Mather, James. „Magneto-acoustic waves in the stratified solar atmosphere : single to multi-fluid approach“. Thesis, University of Sheffield, 2017. http://etheses.whiterose.ac.uk/19463/.

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Mechanical waves are ubiquitous within solar plasmas, coming in the form of Magnetohydrodynamic (MHD) waves. The Sun and its atmosphere are not a single homogeneous medium and, rather, have complex structures stratified by gravity, temperature gradients, complex magnetic field structures, subject to bulk flows and even partial ionisation, with all of these affecting how oscillations propagate within the plasma. Magneto-acoustic gravity (MAG) waves have been investigated extensively within solar physics, with three popular choices of analytical modelling for a Cartesian coordinate system: a magnetic field parallel, perpendicular, or at an angle to the gravitational field. Firstly we study the eigen-modes of bounded solar plasmas embedded in a magnetic field perpendicular to the gravitational field and their energy distribution in both single and two-layer models. We show that, indeed, modes can still be split into fast and slow MAG with stratification decreasing the magnetic energy with height and, thus, only waves with predominantly internal energy are more evenly distributed in the atmosphere. A discontinuity in temperature between layers also reflects waves but we show there is an inherent coupling between waves in both layers. Secondly we investigate the effect of a bulk flow on MAG surface waves, with the magnetic field parallel to the surface and a gravitational field perpendicular to this. We find that waves along the penumbra, where Evershed flows are present can change their direction of propagation and even the Kelvin-Helmholtz instability can occur. Waves within solar plasmas have generally been studied in fully ionised or completely neutral media extensively and, as such, partial ionisation has not been covered much until fairly recently, meaning there is great scope for exciting studies in this sub-set of solar physics. Using single and multi-fluid methods we investigate the stability of partially ionised plasma slabs with bulk flows. We find that in the single fluid approximation that dissipative instabilities can occur for flow speeds of the internal tube speed, with a neutrals providing stability. In the two-fluid approximation our analysis confirms the existence of a mode that arises due to the shear in flow in the neutral fluid and that, in a highly collisional plasma, has a semi-resonant interaction between itself and the classical modes of incompressible or compressible magnetic slabs.

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Parpiiev, Tymur. „Ultrafast magneto-acoustics in magnetostrictive materials“. Thesis, Le Mans, 2017. http://www.theses.fr/2017LEMA1044/document.

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Avec l’avènement du laser femtoseconde il est devenu possible de mesurer comment la démagnétisation femtoseconde peut permettre de sonder l’interaction d’échange dans les métaux ferromagnétiques. La démagnétisation induite par laser d’un matériau avec un fort couplage magnéto-élastique amène à la relaxation des contraintes mécaniques, générant ainsi des ondes acoustiques longitudinales (L) et transversales (T). Dans ce travail de thèse, la génération d’impulsions acoustiques picosecondes T par le mécanisme de démagnétostriction dans des matériaux fortement magnétostrictifs est traitée analytiquement et montrée expérimentalement dans le cas d’un alliage de Terfenol. En premier lieu, nous avons développé un modèle phénoménologique de magnétostriction directe dans un film monocristallin de Terfenol. Les expériences pompe-sonde linéaire MOKE résolues en temps montrent que la relaxation transitoire des contraintes magnéto-élastiques du film amène à l’excitation d’ondes GHz acoustiques L at T. Ces résultats sont la première observation expérimentale de l’excitation d’ondes acoustiques transversales picoseconde par mécanisme de démagnétostriction induit par laser. En second lieu, nous avons analysé le processus d’interaction d’ondes acoustiques L avec l’aimantation d’un film mince de Terfenol. L’onde acoustique picoseconde produit un changement de magnétisation du film et induit la conversion de modes acoustiques. C’est une autre voie de génération d’ondes acoustiques T que nous avons mis en évidence. La gamme de fréquence des impulsions générées est liée à l’échelle de temps de démagnétisation, qui corresponds à quelques centaines de GHz - 1 THz
With the advent of femtosecond lasers it became possible to measure how femtosecond optical demagnetization can probe the exchange interaction in ferromagnetic metals. Laser-induced demagnetization of materials with strong magneto-elastic coupling should lead to the release of its build-in strains, thus to the generation of both longitudinal (L) and shear (S) acoustic waves. In this thesis, generation of shear picosecond acoustic pulses in strongly magnetostrictive materials such as Terfenol is processed analytically and shown experimentally. In case of Terfenol with strong magneto-crystalline anisotropy, laser induced demagnetostriction is responsible for S excitation. First, the phenomenological model of direct magnetostriction in a Terfenol monocrystalline film is developed. The shear strain generation efficiency strongly depends on the orientation of the film magnetization. Time-resolved linear MOKE pump-probe experiments show that transient laser-induced release of the magnetoelastic strains lead to the excitation of GHz L and S acoustic waves. These results are the first experimental observation of picosecond shear acoustic wave excitation by laser-induced demagnetostriction mechanism. Second, the interaction of an optically generated L acoustic pulse with the magnetization of a Terfenol thin film is reported. Arrival of the picosecond strain wave alters a change of its magnetization and leads to acoustic mode conversion, which is another pathway of shear acoustic wave generation. The frequency bandwidth of the generated acoustic pulses matches the demagnetization timescale and lies in the range of several hundreds of GHz, close to 1 THz

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Zhou, Huan. „Etude théorique et expérimentale de systèmes à ondes de surface dans des structures multicouches piézomagnétiques pour des applications en contrôle santé intégré de MEMS par imagerie acoustique non linéaire“. Phd thesis, Ecole Centrale de Lille, 2014. http://tel.archives-ouvertes.fr/tel-00991915.

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Les développements récents en physique, et technologiques, ont permis l'élaboration de nouveaux matériaux magnéto-électro-élastique, comme les composites multicouches piézoélectriques / piézomagnétiques. Leur coefficient magnétoélectrique, très grand en comparaison de celui des matériaux constitués d'une seule phase, a suscité récemment un grand nombre de travaux, menant au développement de capteurs, d'actionneurs, de systèmes de conversion d'énergie magnétique-électrique, et dans les mémoires à état solide.Cette thèse porte sur l'étude théorique et expérimentale des ondes acoustiques de surface dans des structures multicouches piézomagnétiques. Une description théorique des matériaux magnéto-élastiques, reposant sur la dérivation d'un modèle de matériau piézomagnétique équivalent, est utilisée conjointement à une technique numérique afin de calculer les courbes de dispersion et les formes des modes des ondes acoustiques se propageant dans des composites piézo-électro-magnétiques déposés sur un substrat. Ce modèle, très général, peut être utilisé pour différents types de structures et pour une intensité et une direction quelconques du champ magnétique externe appliqué. Les structures réalisées en salle blanche sont constituées d'un film mince de 20 couches de TbCo2 (5nm)/FeCo(5nm) déposé sur un substrat de LiNbO3 entre deux peignes interdigités. Une comparaison, entre les variations de la vitesse de phase d'ondes acoustiques de surface induites par l'application d'un champ magnétique externe modélisées et mesurées, est réalisée. Un bon accord quantitatif entre les mesures et les calculs théoriques, et cela pour toutes les orientations du champ magnétique (suivant l'axe facile ou l'axe difficile) et pour différents modes acoustiques, est obtenu. Le mode transverse horizontal présente les plus grandes variations de vitesse, proche de 20% pour un film dont l'épaisseur serait celle de la longueur d'onde acoustique

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Nguyen, Christine. „Magneto-Hydrodynamic Activity and Energetic Particles - Application to Beta Alfvén Eigenmodes“. Phd thesis, Ecole Polytechnique X, 2009. http://pastel.archives-ouvertes.fr/pastel-00005642.

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La faisabilite de la fusion magnetique est dependante de notre capacite a confiner l'energie des particules supra-thermiques liberees a haute energie par les reactions de fusion, dans les meilleures conditions de securite et d'efficacite. Dans ce but, il est necessaire de comprendre l'interaction entre les particules energetiques et le plasma thermo-nucleaire qui constitue l'environnement des reactions de fusion, afin de la controler. La these que nous presentons ici s'inscrit dans cet effort. Le coeur du travail mene est l'etude d'un type d'instabilite, le Beta Alfven Eigenmode (BAE), que peuvent exciter les particules energetiques, et dont on peut craindre qu'il degrade fortement non seulement le confinement des particules energetiques mais aussi le confinement du plasma dans sa globalite. Dans un premier temps, nous nous attacherons a decrire les caracteristiques de ce mode et nous deriverons sa relation de dispersion ainsi que sa structure. Dans une seconde partie, nous effectuerons l'etude de la stabilite lineaire de ce mode en presence de particules energetiques. Cette etude nous a permis de definir un critere analytique rendant compte de la capacite des particules energetiques a exciter le BAE. Ce critere sera discute et confronte aux resultats d'experiences menees durant la these. Cette etude lineaire presentant cependant quelques limites, il nous est apparu important de nous poser la question de la possibilite d'une modication de la stabilite du BAE liee a l'utilisation d'une description non-lineaire. Nous suggererons dans cette presentation un processus, verifie analytiquement et numeriquement, dont peut resulter l'existence d'etats meta-stables pour le BAE.

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Bücher zum Thema "Magneto-acoustic"

Newnham, Robert E. Properties of Materials. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780198520757.001.0001.

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Crystals are sometimes called 'Flowers of the Mineral Kingdom'. In addition to their great beauty, crystals and other textured materials are enormously useful in electronics, optics, acoustics and many other engineering applications. This richly illustrated text describes the underlying principles of crystal physics and chemistry, covering a wide range of topics and illustrating numerous applications in many fields of engineering using the most important materials today. Tensors, matrices, symmetry and structure-property relationships form the main subjects of the book. While tensors and matrices provide the mathematical framework for understanding anisotropy, on which the physical and chemical properties of crystals and textured materials often depend, atomistic arguments are also needed to quantify the property coefficients in various directions. The atomistic arguments are partly based on symmetry and partly on the basic physics and chemistry of materials. After introducing the point groups appropriate for single crystals, textured materials and ordered magnetic structures, the directional properties of many different materials are described: linear and nonlinear elasticity, piezoelectricity and electrostriction, magnetic phenomena, diffusion and other transport properties, and both primary and secondary ferroic behavior. With crystal optics (its roots in classical mineralogy) having become an important component of the information age, nonlinear optics is described along with the piexo-optics, magneto-optics, and analogous linear and nonlinear acoustic wave phenomena. Enantiomorphism, optical activity, and chemical anisotropy are discussed in the final chapters of the book.

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Buchteile zum Thema "Magneto-acoustic"

Sanchez, Simon W., und Jinxing Li. „Magneto-Acoustic Hybrid Micro-/Nanorobot“. In Field-Driven Micro and Nanorobots for Biology and Medicine, 165–77. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-80197-7_7.

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Shen, Yongna, Gongtian Shen und Wenjun Zhang. „The Optimization of Magneto Acoustic Emission Testing Device“. In Springer Proceedings in Physics, 49–55. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-12111-2_5.

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Utrata, David, und Min Namkung. „Magneto-Acoustic Stress Responses of Various Rail Metallurgies“. In Review of Progress in Quantitative Nondestructive Evaluation, 1903–10. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-5772-8_244.

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Zhou, Xiaoqing, Huiqin Wang, Ren Ma, Tao Yin, Zhuo Yang und Zhipeng Liu. „Experimental Study on Transcranial Magneto-Acoustic Coupling Stimulation“. In Advances in Cognitive Neurodynamics (VII), 283–84. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0317-4_45.

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MA, R., S. ZHANG, T. YIN und Z. LIUi. „Experimental Study on Amplitude Frequency of Acoustic Signal Excited by Coupling Magneto-Acoustic Field“. In IFMBE Proceedings, 158–61. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19387-8_38.

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Ruf, T., V. F. Sapega, J. Spitzer, V. I. Belitsky, M. Cardona und K. Ploog. „Resonant Magneto-Raman Scattering by Acoustic Phonons in Quantum Wells and Superlattices“. In Phonons in Semiconductor Nanostructures, 83–92. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1683-1_8.

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Wu, Sha, Gongtian Shen, Zenghua Liu, Yongna Shen und Zhinong Li. „Research on Extraction Method of Fatigue State Magneto Acoustic Emission Characteristic Parameters Based on CEEMD“. In Springer Proceedings in Physics, 171–81. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9837-1_16.

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López, Rafael J. „Magneto-acoustic and Barkhausen Emission in Wide Ribbons of One Magnetic Glass“. In Recent Advances in Multidisciplinary Applied Physics, 325–29. Elsevier, 2005. http://dx.doi.org/10.1016/b978-008044648-6.50052-5.

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LOPEZ, R. „Magneto-acoustic and barkhausen emission in wide ribbons of one magnetic glass“. In Recent Advances in Multidisciplinary Applied Physics, 325–29. Elsevier, 2005. http://dx.doi.org/10.1016/b978-008044648-6/50052-5.

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Glukhikh, Igor, Viktor Ivanchenko und Sergey Ivanchenko. „Connection of magneto acoustic emission parameters with conditions of magnetite deposits formation“. In Methods and Applications in Petroleum and Mineral Exploration and Engineering Geology, 257–74. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-323-85617-1.00013-8.

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Konferenzberichte zum Thema "Magneto-acoustic"

Gosavi, Tanay A., und Sunti A. Bhave. „Magneto-acoustic oscillator“. In 2017 19th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS). IEEE, 2017. http://dx.doi.org/10.1109/transducers.2017.7994083.

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Mehrmohammadi, M., Junghwan Oh, S. R. Aglyamov, A. B. Karpiouk und S. Y. Emelianov. „Pulsed magneto-acoustic imaging“. In 2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2009. http://dx.doi.org/10.1109/iembs.2009.5334214.

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Min Qu, S. Mallidi, M. Mehrmohammadi, L. L. Ma, K. P. Johnston, K. Sokolov und S. Emelianov. „Combined photoacoustic and magneto-acoustic imaging“. In 2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2009. http://dx.doi.org/10.1109/iembs.2009.5334217.

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Tiwari, Sidhant. „Magneto-Acoustic Waves in Multiferroic Heterostructures .“ In Proposed for presentation at the TANMS ARSM (Advanced Research Strategy Meeting) 2022 held February 8-24, 2022 in ,. US DOE, 2022. http://dx.doi.org/10.2172/2001707.

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Almansouri, Abdullah S., Liam Swanepoel, Khaled N. Salama und Jurgen Kosel. „A Self-Powered Magneto-Acoustic Tracking Transducer“. In 2019 IEEE SENSORS. IEEE, 2019. http://dx.doi.org/10.1109/sensors43011.2019.8956781.

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Dhagat, Pallavi, Vikrant Gokhale, Albrecht Jander, Brian Downey, Carson Rivard, Shawn Mack, D. Scott Katzer, Jason Roussos und David Meyer. „RF Signal Processing with Magneto-acoustic Devices“. In 2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers). IEEE, 2023. http://dx.doi.org/10.1109/intermagshortpapers58606.2023.10228303.

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Qu, Min, Mohammad Mehrmohammadi, Ryan Truby, Kimberly Homan und Stanislav Emelianov. „Magneto-photo-acoustic imaging using dual-contrast agent“. In 2010 IEEE Ultrasonics Symposium (IUS). IEEE, 2010. http://dx.doi.org/10.1109/ultsym.2010.5935934.

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Wilkie-Chancellier, N., S. Serfaty, P. Griesmar, Y. Le Diraison und J. Y. Le Huerou. „Inductive magneto-acoustic technique for viscous fluids monitoring“. In 2011 IEEE International Ultrasonics Symposium (IUS). IEEE, 2011. http://dx.doi.org/10.1109/ultsym.2011.0272.

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Bocchialini, Karine, und Serge Koutchmy. „High frequency magneto-acoustic waves in the chromosphere“. In Scientific basis for robotic exploration close to the sun. AIP, 1997. http://dx.doi.org/10.1063/1.51752.

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ZIDAT, Farid, Gregory BAUW, Bertrand CASSORET und Thomas GUFFROY. „Magneto-vibro-acoustic Design of PWM-fed Induction Machines“. In 2019 19th International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering (ISEF). IEEE, 2019. http://dx.doi.org/10.1109/isef45929.2019.9096884.

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