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Статті в журналах з теми "Thermal Hall effect"
Maksimov, L. A., and T. V. Khabarova. "Thermal Hall-Senftleben effect." Physics of the Solid State 50, no. 10 (October 2008): 1836–40. http://dx.doi.org/10.1134/s1063783408100089.
Повний текст джерелаMurakami, Shuichi, and Akihiro Okamoto. "Thermal Hall Effect of Magnons." Journal of the Physical Society of Japan 86, no. 1 (January 15, 2017): 011010. http://dx.doi.org/10.7566/jpsj.86.011010.
Повний текст джерелаIdeue, T., T. Kurumaji, S. Ishiwata, and Y. Tokura. "Giant thermal Hall effect in multiferroics." Nature Materials 16, no. 8 (May 15, 2017): 797–802. http://dx.doi.org/10.1038/nmat4905.
Повний текст джерелаYokoi, T., S. Ma, Y. Kasahara, S. Kasahara, T. Shibauchi, N. Kurita, H. Tanaka та ін. "Half-integer quantized anomalous thermal Hall effect in the Kitaev material candidate α-RuCl3". Science 373, № 6554 (29 липня 2021): 568–72. http://dx.doi.org/10.1126/science.aay5551.
Повний текст джерелаBruin, J. A. N., R. R. Claus, Y. Matsumoto, N. Kurita, H. Tanaka та H. Takagi. "Robustness of the thermal Hall effect close to half-quantization in α-RuCl3". Nature Physics 18, № 4 (17 лютого 2022): 401–5. http://dx.doi.org/10.1038/s41567-021-01501-y.
Повний текст джерелаOwerre, S. A. "Topological thermal Hall effect due to Weyl magnons." Canadian Journal of Physics 96, no. 11 (November 2018): 1216–23. http://dx.doi.org/10.1139/cjp-2018-0059.
Повний текст джерелаSzelecka, Agnieszka, Jacek Kurzyna, and Loic Bourdain. "Thermal stability of the krypton Hall effect thruster." Nukleonika 62, no. 1 (March 1, 2017): 9–15. http://dx.doi.org/10.1515/nuka-2017-0002.
Повний текст джерелаBlanter, Ya M., D. V. Livanov, and M. O. Rodin. "Thermal conductivity in the quantum Hall effect regime." Journal of Physics: Condensed Matter 6, no. 9 (February 28, 1994): 1739–48. http://dx.doi.org/10.1088/0953-8984/6/9/015.
Повний текст джерелаZhang, Hantao, and Ran Cheng. "Magnon thermal Edelstein effect detected by inverse spin Hall effect." Applied Physics Letters 117, no. 22 (November 30, 2020): 222402. http://dx.doi.org/10.1063/5.0030368.
Повний текст джерелаHAN, Jung Hoon. "Electromagnetism without Electrons: A Brief History of Thermal Hall Effect." Physics and High Technology 29, no. 6 (June 30, 2020): 14–20. http://dx.doi.org/10.3938/phit.29.020.
Повний текст джерелаДисертації з теми "Thermal Hall effect"
Bohnert, Alex M. "Thermal characterization of a Hall Effect thruster /." Wright-Patterson Air Force Base, Ohio : Ft. Belvior, VA : Alexandria, Va. : Air Force Institute of Technology ; Available to the public through the Defense Technical Information Center ; Available to the public through the National Technical Information Service, 2008. http://www.dtic.mil/dtic/.
Повний текст джерела"Presented to the Faculty, Department of Aeronautics and Astronautics Graduate School of Engineering and Management, Air Force Institute of Technology Air University, Air Education and Training Command in partial fulfillment of the requirements for the Degree of Master of Science in Aeronautical Engineering, March 2008."--P. [ii]. Thesis advisor: Dr. William Hargus. "March 2008." "AFIT/GA/ENY/08-M01." Includes bibliographical references. Also available online in PDF from the DTIC Online Web site.
Durkaya, Goksel. "Electrical And Structural Characterization Of Bismuth Thin Films." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606374/index.pdf.
Повний текст джерелаRossi, Dario. "Fracton phases: analytical description and simulations of their thermal behavior." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23919/.
Повний текст джерелаGarchery, Laurent. "Fabrication et étude des propriétés physiques des nanostructures Si/SiGe : application aux nouveaux dispositifs." Université Joseph Fourier (Grenoble), 1996. http://www.theses.fr/1996GRE10232.
Повний текст джерелаВласенко, Олександр Володимирович, Александр Владимирович Власенко та Oleksandr Volodymyrovych Vlasenko. "Електрофізичні та магніторезистивні властивості плівкових сплавів на основі Fe і Ge". Thesis, Сумський державний університет, 2021. https://essuir.sumdu.edu.ua/handle/123456789/85451.
Повний текст джерелаДиссертация посвящена исследованию электрофизических, магниторезистивных, магнитооптических свойств и эффекта Холла в пленочных системах на основе металла (Fe) и полупроводника (Ge) при фазообразовании. Изучение прoцесов фазообразования в двухкомпонентных пленочных материалах на основе Fe и Ge, сформированных методом послойной конденсации с последующей термообработкой в интервале температур 300–1070 К, позволили устаовить, что в пленочных сплавах, сформированных на основе отожжённых до 900–1070 К трехслойных пленок Fe (5–10 нм)/Ge (2–25 нм)/Fe (15–50 нм), в зависимости от соотношения концентраций атомов отдельных компонент образуются магнитные пленки германидов железа Fe2Ge, FeGe и FeGe2 со средними размерами кристаллитов 15–30 нм. Сравнение экспериментальных величин удельного сопротивления двухслойных плёночных систем Ge/Fe/П с расчетными на основе модели, в которой сохраняется индивидуальность отдельных слоёв, свидетельствует о том, что отличие между этими величинами можно объяснить эффектом образования экситонов Ванье–Мотта на основе 4 % электронов проводимости. Переход пленки германида железа из аморфного состояния в кристаллическое происходит при температурах Та→к = 560–590 К в зависимости от толщины образца. Формирования термостабильных (ТКС ~ 10–4 К–1) фаз FeGe и FeGe2 по всему объему образца приводит к росту величины МО от 0,02–0,04 % в неотожжённых системах до 0,30–0,44 % в отожженных до 900 К образцах. Наблюдается зависимость угла Керра от индукции магнитного поля в виде прямоугольной петли гистерезиса, что свидетельствует о реализации двух магнитных состояний и быстродействии чувствительных элементов устройств в магнитном поле. Получено, что постоянная Холла для двухслойных пленок на основе Fe и Ge имеет величину (6–11) .10-9 м3/Кл при росте индукции магнитного поля от 0 до 100 мТл. При увеличении интервала термообработки пленочных образцов до 570 К постоянная Холла уменьшается от 11·10−9 м3/Кл до 6·10−9 м3/Кл. Исследованы свойства тонких пленок углерода и нитрида углерода как защитных покрытий для пленочных чувствительных элементов. Показано, что плотность пленки CNx/Si (100) уменьшается при снижении температуры подложки и увеличении толщины образца, а максимальная концентрация атомов алмазоподобной структуры наблюдается в области подложки, а при толщине d ≥ 2 нм. Пленка однородная с постоянной плотностью, что свидетельствует о соответствии пленок CNx требованиям к покрытиям, которые могут быть использованы как защитные термостойкие слои для чувствительных элементов сенсорной электроники на основе силицидов и германидов металлов.
The thesis is devoted to systematic research of electrophysical, magnetoresistive, magneto – optical galvanomagnetic properties of film systems on the basis of metal (Fe) and semiconductor (Ge) in the conditions of phase formation. In film alloys formed based on annealed to 900–1070 K three-layer films Fe(5–10 nm)/Ge(2–25 nm)/Fe(15–50 nm), depending on the ratio of the concentrations of atoms of individual components, magnetic films are formed iron germanides Fe2Ge, FeGe and FeGe2 with average crystallite sizes of 15–30 nm. Comparison of resistivity of two-layer Ge/Fe/S (S-substrate) film systems with calculated ones based on the model, which preserves the individuality of individual layers, indicates that the difference between these values can be explained by the effect of Vanier-Mott excitons based on 4 % conduction electrons. The transition of the iron germanide film from the amorphous state to the crystalline state occurs at temperatures Tа→c = 560–590 K depending on the film thickness. The formation of thermostable (TRC ~ 10–4 K–1) phases of FeGe and FeGe2 over the entire volume of the sample leads to an increase in the value of MR from 0.02–0.04 % in non-annealed systems to 0.30–0.44 % in annealed to 900 K samples. It is established that in systems based on Fe and Ge films, the dependence of the angle Θ on the induction of the magnetic field in the form of a "stepped hysteresis loop" is observed, which indicates the realization of two magnetic states and the speed of sensitive elements of functional devices in a magnetic field. It has been experimentally established that the value of the Hall constant for two-layer films based on Fe and Ge (6–11)·10–9 m3/C with increasing magnetic field induction from 0 mT to 100 mT. When increasing the heat treatment interval of film samples to 570 K, the value of the Hall constant decreases from 11·10–9 m3/C to 6·10–9 m3/C. The properties of thin films of carbon and carbon nitride as protective coatings for film sensitive elements have been studied.
Noky, Jonathan. "Anomalous electric, thermal, and thermoelectric transport in magnetic topological metals and semimetals." 2020. https://tud.qucosa.de/id/qucosa%3A75712.
Повний текст джерелаIn recent years, the connection between topology and condensed matter resulted in the discovery of many interesting and exotic electronic effects. While in the beginning, the research was focused on gapped electronic systems like the topological insulator, more recently, topological semimetals are getting a lot of attention. The most well-known example is the Weyl semimetal, which hosts linear crossings of non-degenerate bands at arbitrary points in the Brillouin zone. Tied to these points there is a special quantum number called chirality, which enforces the existence of Weyl point pairs. These pairs are topologically protected and act as sources and sinks of the Berry curvature, a topological field in reciprocal space. This Berry curvature is directly connected to the anomalous Hall effect, which describes the emergence of a transverse voltage from a longitudinal current in a magnetic material. Analogously, there also exists the anomalous Nernst effect, where the longitudinal current is replaced by a thermal gradient. This effect allows for the conversion of heat into electrical energy and is also strongly tied to the Berry curvature. In this work, the anomalous transport effects are at first studied in fundamental model systems. Here, a combination of analytical and numerical methods is used to reveal quantizations in both the Hall, the Nernst, and the thermal Hall effects in two-dimensional systems with and without external magnetic fields. An expansion into three dimensions shows a quasi-quantization, where the conductivities take values of the respective two-dimensional quanta scaled by characteristic wavevectors. In the next step, several mechanisms for the generation of strong Berry curvature and thus large anomalous Hall and Nernst effects are studied in both model systems and real materials. This allows for the identification and isolation of promising effects in the simple models, where important features can be studied. The results can then be applied to the real materials, where the respective effects can be recognized. Here, both Weyl points and nodal lines in combination with magnetism are identified as promising features and material realizations are proposed in the class of Heusler compounds. These compounds are a very versatile class of materials, where among others also magnetic topological metals can be found. To get a deeper understanding of the anomalous transport effects as well as to derive guidelines for high-performance compounds, a high-throughput calculation of magnetic cubic full Heusler compounds was carried out. This calculation reveals the importance of mirror planes in magnetic materials for large anomalous Hall and Nernst effects and shows that some of the Heusler compounds outperform the highest so-far reported literature values in these effects. Also other interesting effects related to Weyl points are investigated. In the well-known Weyl semimetal NbP, the Weyl points have a high degeneracy due to the high symmetry of the crystal. However, the application of uniaxial strain reduces the symmetries and therefore lifts the degeneracies. A theoretical investigation shows, that the Weyl points are moved in energy under uniaxial strain and, more importantly, that at reasonable strain values they cross the Fermi level. This renders NbP a promising platform to further study Weyl physics. The theoretical results are combined with experimental measurements of Shubnikov-de Haas oscillations under uniaxial strain and a good agreement with the theoretical results is found. As a first step in the direction of new ways of computation, an idea of a Weyl semimetal based chirality filter for electrons is investigated. At the interface of two Weyl semimetals, depending on the exact Weyl point parameters, it is possible to transmit only one chirality. Here, an effective geometrical model is established and employed for the investigation of real material interfaces. While in general, a filtering effect seems possible, the investigated materials did not show any suitable combination. Here, further studies can be made with the focus on either magnetic Weyl semimetals of multifold-fermion materials.:List of publications Preface 1. Theoretical background 1.1. Berry curvature and Weyl semimetals 1.1.1. From the adiabatic evolution to the Berry phase 1.1.2. From the Berry phase to the Berry curvature 1.1.3. Topological phases of condensed matter 1.1.4. Weyl semimetals 1.1.5. Dirac semimetals 1.1.6. Nodal line semimetals 1.2. Density-functional theory 1.2.1. Born-Oppenheimer approximation 1.2.2. Hohenberg-Kohn theorems 1.2.3. Kohn-Sham formalism 1.2.4. Exchange-correlation functional 1.2.5. Pseudopotentials 1.2.6. Basis functions 1.2.7. VASP 1.3. Tight-binding Hamiltonian from Wannier functions 1.3.1. Wannier functions 1.3.2. Constructing Wannier functions from DFT 1.3.3. Generating a Wannier tight-binding Hamiltonian 1.3.4. Necessity of the tight-binding Hamiltonian 1.4. Linear response theory 1.4.1. General introduction to linear response 1.4.2. Anomalous Hall effect 1.4.3. Anomalous Nernst effect 1.4.4. Anomalous thermal Hall effect 1.4.5. Common features of anomalous transport effects 1.4.6. Symmetry considerations for Berry curvature related transport effects 1.4.7. Magneto-optic Kerr effect 1.4.8. About the efficiency of the calculations 2. (Quasi-)Quantization in the Hall, thermal Hall, and Nernst effects 2.1. Quantization with an external magnetic field 2.1.1. Two-dimensional case 2.1.2. Three-dimensional case 2.2. Quantization without an external field 2.2.1. Two-dimensional case 2.2.2. Three-dimensional case . 2.3. A remark on the spin Hall effect 2.4. A remark on the quasi-quantization of the three-dimensional conductivities 2.5. Conclusions 3. Understanding anomalous transport 3.1. Anomalous transport without a net magnetic moment 3.1.1. Toy model 3.1.2. Ti2MnAl and related compounds 3.2. Large Berry curvature enhancement from nodal line gapping 3.2.1. Toy model 3.2.2. Fe2MnP and related compounds 3.2.3. Co2MnGa 3.3. Topological features away from the Fermi level and the anomalous Nernst effect 3.3.1. Toy model . 3.3.2. Co2FeGe and Co2FeSn 3.4. Conclusions 4. Heusler database calculation 4.1. Workflow 4.2. Importance of mirror planes 4.3. The right valence electron count 4.4. Correlation between anomalous Hall and Nernst effects 4.5. Selected special compounds 4.6. Conclusions 5. NbP under uniaxial strain 5.1. NbP and its symmetries 5.2. The influence of strain on the electronic structure 5.2.1. Shifting of the Weyl points 5.2.2. Splitting of the Fermi surfaces 5.3. Comparison with experimental results 5.4. Conclusions 6. A tunable chirality filter 6.1. Concept 6.2. Geometrical simplification and expansion for more Weyl points 6.3. Material selection 6.3.1. Workflow 6.3.2. Results for NbP and TaAs 6.3.3. Results for Ag2Se and Ag2S 6.4. Conclusions and perspective . Summary and outlook A. Numerical tricks A.1. Hamiltonian setup at several k points at once A.2. Precalculating prefactors B. Derivation of the conductivity (quasi-)quanta B.1. Two dimensions B.1.1. General formula and necessary approximations B.1.2. Useful integrals B.1.4. Quantized thermal Hall effect B.1.5. Quantized Nernst effect B.1.6. Flat bands and the Nernst effect B.2. Three dimensions B.2.1. General formula B.2.2. Three-dimensional electron gas B.2.3. Three-dimensional Weyl semimetal C. Heusler database tables D. Details on the NbP strain calculations E. Details on the geometrical matching procedure References List of abbreviations List of Figures List of Tables Acknowledgements Eigenständigkeitserklärung
"Two--Dimensional Anyons and the Temperature Dependence of Commutator Anomalies." Int. J. Mod. Phys. A16 (2001) 1407-1415, 2001. ftp://ftp.esi.ac.at/pub/Preprints/esi979.ps.
Повний текст джерелаКниги з теми "Thermal Hall effect"
Effects of thermal and mechanical processing on microstructures and desired properties of particle-strengthened Cu-Cr-Nb alloys. [Cleveland, Ohio]: National Aeronautics and Space Administration, Glenn Research Center, 2000.
Знайти повний текст джерелаЧастини книг з теми "Thermal Hall effect"
Hiraoka, T., T. Sada, T. Takabatake, and H. Fujii. "The Hall Effect in U3T3M4(T=Ni,Cu,Au,M=Sn,Sb)." In Transport and Thermal Properties of f-Electron Systems, 271–76. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2868-5_28.
Повний текст джерелаOng, N. P., T. W. Jing, Z. Z. Wang, J. Clayhold, S. J. Hagen, and T. R. Chien. "Andreev Reflection, Thermal Conductivity, Torque Magnetometry, and Hall Effect Studies on High-Tc Systems." In Springer Series in Solid-State Sciences, 204–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-83836-1_20.
Повний текст джерелаKaothekar, Sachin. "Frictional Effect of Neutrals Hall Current and Radiative Heat-Loss Functions on Thermal Instability of Two-Component Plasma." In Springer Proceedings in Physics, 395–410. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5141-0_42.
Повний текст джерелаYang, Yang, and Tom Schanz. "Thermo-osmosis effect in one dimensional half space consolidation." In Aktuelle Forschung in der Bodenmechanik 2013, 89–103. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-37542-2_6.
Повний текст джерелаPan, Ying, Zi Hou Zhang, and Li Hou Liu. "Effect of Rotation to a Half-Sapce in Magneto-Thermoelasticity with Thermal Relaxations." In Key Engineering Materials, 3018–21. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-456-1.3018.
Повний текст джерелаLatha, R., and B. Rushi Kumar. "Effects of Thermal Radiation on Peristaltic Flow of Nanofluid in a Channel with Joule Heating and Hall Current." In Trends in Mathematics, 301–11. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-01123-9_30.
Повний текст джерелаVuong, T. H. H., and R. J. Nicholas. "A Study of Thermally Activated Conduction, Hall Effect and Infra-Red Absorption from the Impurity Band in n-InP." In Proceedings of the 17th International Conference on the Physics of Semiconductors, 705–8. New York, NY: Springer New York, 1985. http://dx.doi.org/10.1007/978-1-4615-7682-2_157.
Повний текст джерелаNewnham, Robert E. "Galvanomagnetic and thermomagnetic phenomena." In Properties of Materials. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780198520757.003.0022.
Повний текст джерелаTiwari, Sandip. "Scattering-constrained dynamics." In Semiconductor Physics, 342–78. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198759867.003.0009.
Повний текст джерелаKenyon, Ian R. "Electrons in solids." In Quantum 20/20, 75–94. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198808350.003.0005.
Повний текст джерелаТези доповідей конференцій з теми "Thermal Hall effect"
Tomaszewski, James, Richard Branam, William Hargus, and Taylor Matlock. "Characterization of a Hall Effect Thruster Using Thermal Imaging." In 45th AIAA Aerospace Sciences Meeting and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2007. http://dx.doi.org/10.2514/6.2007-584.
Повний текст джерелаOsterberg, F. W., D. H. Petersen, F. Wang, E. Rosseel, W. Vandervorst, and O. Hansen. "Accurate micro Hall Effect measurements on scribe line pads." In 2009 17th International Conference on Advanced Thermal Processing of Semiconductors (RTP). IEEE, 2009. http://dx.doi.org/10.1109/rtp.2009.5373450.
Повний текст джерелаCairns, Luke Pritchard, J. Ph Reid, Robin Perry, Dharmalingam Prabhakaran, and Andrew Huxley. "Thermal Hall Effect of Topological Triplons in SrCu2(BO3)2." In Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2019). Journal of the Physical Society of Japan, 2020. http://dx.doi.org/10.7566/jpscp.30.011089.
Повний текст джерелаChen, Yi-Jia, and Ssu Yen Huang. "The Contribution of Thermal Hall Effect in Anomalous Nernst and Spin Seebeck Effects." In 2016 International Conference of Asian Union of Magnetics Societies (ICAUMS). IEEE, 2016. http://dx.doi.org/10.1109/icaums.2016.8479931.
Повний текст джерелаChen, Y., and S. Huang. "Absence of the thermal Hall effect in anomalous Nernst and spin Seebeck effects." In 2017 IEEE International Magnetics Conference (INTERMAG). IEEE, 2017. http://dx.doi.org/10.1109/intmag.2017.8007552.
Повний текст джерелаBarral, S. "Hall Effect Thruster with an AlN Chamber." In PLASMA 2005: Int. Conf. on Research and Applications of Plasmas; 3rd German-Polish Conf.on Plasma Diagnostics for Fusion and Applications; 5th French-Polish Seminar on Thermal Plasma in Space and Laboratory. AIP, 2006. http://dx.doi.org/10.1063/1.2168877.
Повний текст джерелаChen, Xuelei. "Research on thermal effect of Hall element driven by pulsed power supply." In 2011 IEEE 3rd International Conference on Communication Software and Networks (ICCSN). IEEE, 2011. http://dx.doi.org/10.1109/iccsn.2011.6013866.
Повний текст джерелаPetersen, D. H., O. Hansen, R. Lin, P. F. Nielsen, T. Clarysse, J. Goossens, E. Rosseel, and W. Vandervorst. "High precision micro-scale Hall effect characterization method using in-line micro four-point probes." In 2008 16th International Conference on Advanced Thermal Processing of Semiconductors (RTP). IEEE, 2008. http://dx.doi.org/10.1109/rtp.2008.4690563.
Повний текст джерелаBen-Abdallah, Philippe, and Svend-Age Biehs. "Heat flux splitting and photon thermal Hall effect in two dimensional plasmonic nanoparticle arrays." In 2016 Progress in Electromagnetic Research Symposium (PIERS). IEEE, 2016. http://dx.doi.org/10.1109/piers.2016.7734706.
Повний текст джерелаNasrin, Sonia, Mohammad Rafiqul Islam, and Md Mahmud Alam. "Hall and ion-slip current effect on steady MHD fluid flow along a vertical porous plate in a rotating system." In 8TH BSME INTERNATIONAL CONFERENCE ON THERMAL ENGINEERING. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5115869.
Повний текст джерела