Дисертації з теми "Thin films cobalt"
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Oates, Colin John. "Magnetic studies of cobalt based granular thin films." Thesis, University of St Andrews, 2002. http://hdl.handle.net/10023/12928.
Повний текст джерелаEspinosa, Jorge D. "De-wetting of cobalt thin films on sapphire." Morgantown, W. Va. : [West Virginia University Libraries], 2007. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5314.
Повний текст джерелаTitle from document title page. Document formatted into pages; contains ix, 106 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 102-105).
Joyce, David Edward. "The structure of cobalt based multilayer thin films." Thesis, University of Salford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300769.
Повний текст джерелаJackson, Matthew. "Microwave spectroscopic studies of cobalt chromium thin films." Thesis, University of York, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387554.
Повний текст джерелаSpillane, Liam Jonathan. "Nanoanalytical electron microscopy of cobalt ferrite thin films." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/6447.
Повний текст джерелаOgrin, Feoder. "Ferromagnetic resonance studies of cobalt films and cobalt based multilayers produced by MOCVD." Thesis, Keele University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362165.
Повний текст джерелаWiedmann, Michael Helmut. "Magnetic and structural properties of ultra-thin cobalt films." Diss., The University of Arizona, 1994. http://hdl.handle.net/10150/186876.
Повний текст джерелаRamos, Ana V. "Epitaxial Cobalt-Ferrite Thin Films for Room Temperature Spin Filtering." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2008. http://tel.archives-ouvertes.fr/tel-00394398.
Повний текст джерелаYang, Jing. "Chemical Vapor Deposition of Cobalt-based Thin Films for Microelectronics." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:11299.
Повний текст джерелаEngineering and Applied Sciences
Cooke, Michael D. "Magnetostrictive properties of polycrystalline iron cobalt films." Thesis, University of Sheffield, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340249.
Повний текст джерелаTuan, Allan C. "Epitaxial growth and characterization of cobalt-doped zinc oxide and cobalt-doped titanium dioxide for spintronic applications /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/9878.
Повний текст джерелаWei, Guang. "Lithium cobalt oxide thin films : preparation and characterization for electrochromic applications /." Thesis, Connect to Dissertations & Theses @ Tufts University, 1991.
Знайти повний текст джерелаSubmitted to the Dept. of Electrical Engineering (Electro-Optics Option). Includes bibliographical references. Access restricted to members of the Tufts University community. Also available via the World Wide Web;
Van, Leeuwen Robert Alan. "Structural and magnetic properties of cobalt/palladium superlattices, ultra-thin cobalt films and manganese antimony alloys." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186431.
Повний текст джерелаKabre, Tushar Shriram. "Co3O4 Thin Films: Sol-Gel Synthesis, Electrocatalytic Properties & Photoelectrochemistry." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1316552072.
Повний текст джерелаAmiri-Hezaveh, A. "Photelectron spectroscopy of ultra-thin epitaxial f.c.c. magnetic films of iron and cobalt." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233668.
Повний текст джерелаSubba, Rao Karavadi. "Microstructure and Texture of Yttrium-Nickel-Borocarbide and Samarium-Cobalt Thin Films." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2006. http://nbn-resolving.de/urn:nbn:de:swb:14-1153317232040-33715.
Повний текст джерелаGana, Usman Muhammadu. "A magnetic and structural study of CoCr-Pt,Ta alloy thin films." Thesis, University of Salford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.281613.
Повний текст джерелаDeng, Yuanyuan, and 邓远源. "Magnetic circular dichroism and Hall measurement of cobalt-doped zinc oxide thin films." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B50434494.
Повний текст джерелаpublished_or_final_version
Physics
Master
Master of Philosophy
Takano, Kentaro. "Exchange anisotropy in thin film bilayers of nickel cobalt monoxide and various ferromagnetic materials /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC IP addresses, 1998. http://wwwlib.umi.com/cr/ucsd/fullcit?p9820884.
Повний текст джерелаMahvan, Nader. "Investigation into perpendicular anisotropy cobalt-chromium films with application to Winchester computer discs." Thesis, University of Plymouth, 1988. http://hdl.handle.net/10026.1/2588.
Повний текст джерелаEspinosa, Jorge D. "Roughening of cobalt thin films on sapphire (110) upon annealing and superparamagnetic behavior of cobalt nanodots on sapphire (001)." Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=3801.
Повний текст джерелаTitle from document title page. Document formatted into pages; contains vi, 30 p. : ill. (some col.) Includes abstract. Includes bibliographical references (p. 29-30).
Taylor, Anthony Park 1963. "Terbium iron cobalt diffusion barrier studies." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276931.
Повний текст джерелаChioncel, Mariana F. "Cobalt thin films produced by conventional and photo-assisted metal-organic chemical vapour deposition." Thesis, Keele University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327638.
Повний текст джерелаYi, Jae-Young. "Microstructure and magnetic properties of Co-(CoO, CoNiO2̳, NiO) and Cox̳Ni1̳-̳x̳-CoO nanocomposite thin films /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2000. http://wwwlib.umi.com/cr/ucsd/fullcit?p3000403.
Повний текст джерелаFallon, Jason Michael. "The structure and properties of interface regions in nanostructured Co/Si thin films." Thesis, University of Salford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301415.
Повний текст джерелаMattarello, Valentina. "Au-Co Thin Films and Nanostructures for MagnetoPlasmonics." Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3421781.
Повний текст джерелаIl presente lavoro si inserisce nell'ambito della scienza e ingegneria dei materiali per la MagnetoPlasmonica. Questa ultima è una recente, ma allo stesso tempo crescente, area di ricerca che mira a combinare le proprietà plasmoniche tipiche dei metalli nobili nanostrutturati (quali, ad esempio, l’intensificazione del campo elettromagnetico locale o la trasmissione ottica straordinaria) con funzionalità di tipo magnetico. Promettenti applicazioni spaziano dalla sensoristica alla realizzazione di nanocircuiti totalmente ottici, solo per citarne alcuni. Tradizionalmente i sistemi per MagnetoPlasmonica più considerati in letteratura prevedono l’accoppiamento di un film sottile o arrangiamento nanostrutturato di metalli nobili con materiale ferromagnetico. Tuttavia, al fine di migliorare le prestazioni di suddetti sistemi e/o esplorare nuove funzionalità è necessario ricercare nuovi composti in cui già il materiale innovativo presenta proprietà plasmoniche e magnetiche. Scopo della presente tesi è la realizzazione e lo studio di film sottili e nanostrutture a base di lega Au-Co: l’oro è, infatti, un metallo nobile tra i migliori per applicazioni in plasmonica e il cobalto è un materiale ferromagnetico. I due metalli allo stato bulk sono notoriamente immiscibili. Con la tecnica di deposizione magnetron sputtering sono stati depositati (in geometria di codeposizione) film sottili Au:Co, caratterizzati da tre diverse composizioni, ovvero Au2Co1, Au1Co1 e Au1Co2 e tre diversi spessori, rispettivamente ≈ 15 nm, ≈ 30 nm e ≈ 100 nm. Una ricerca estesa è stata condotta con l’obiettivo di studiare attentamente le proprietà strutturali dei film, combinando diffrazione a raggi X, con misure di Assorbimento X svolte al Sincrotrone e Microscopia elettronica. I risultati dimostrano che la parte predominante del film è costituita da una lega Au-Co che è tipicamente più ricca in oro rispetto ai rapporti atomici nominali di Au e Co. La frazione di lega, la sua stechiometria e l’ordine locale dipendono dal rapporto Au/Co inizialmente presente. Inoltre, mentre nel campione Au2Co1 la lega è prevalentemente amorfa, nel caso delle leghe più ricche in cobalto vi è la presenza di grani FCC cristallini, allungati lungo la direzione di crescita del film, fortemente tessiturati (in cui i piani (111) sono prevalentemente paralleli al substrato) e caratterizzati da un parametro reticolare che diminuisce all'aumentare del contenuto di cobalto. Oltre alla fase di lega, sono presenti dei clusters di cobalto, caratterizzati da un basso ordine strutturale. L’interfaccia tra due fasi magnetiche è stata confermata da misure SQUID che hanno inoltre permesso di caratterizzare i cicli di isteresi dei film Au:Co e di stimarne i valori di magnetizzazione di saturazione. Le proprietà ottiche dei film sono state caratterizzate con misure di trasmittanza (nel range UV-Vis) ed Ellissometria. Da un punto di vista termico, la lega Au-Co si dimostra stabile fino a 200° C; al crescere della temperatura ha lungo una de-alligazione che porta alla formazione di fasi metalliche separate di oro e cobalto. I materiali Au-Co così preparati e caratterizzati sono stati poi impiegati come componente metallica in array periodici nanostrutturati, i.e., Semi Nano-Shell Array e Nano Hole Array. Gli array sono stati caratterizzati da un punto di vista morfologico e ottico dimostrandosi promettenti piattaforme per future caratterizzazioni MagnetoPlasmoniche.
Nallan, Himamshu, Thong Ngo, Agham Posadas, Alexander Demkov, and John Ekerdt. "Area Selective Deposition of Ultrathin Magnetic Cobalt Films via Atomic Layer Deposition." Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-207142.
Повний текст джерелаShihub, Salahedin Ibrahim. "Studies of the electrical and structural properties of organic semiconducting thin films of thermally evaporated cobalt phthalocyanine." Thesis, Keele University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301164.
Повний текст джерелаTimmermann, Felix [Verfasser], and Manfred [Akademischer Betreuer] Albrecht. "Structural and Electrical Investigations on Iron-Antimony and Cobalt-Antimony Thin Films / Felix Timmermann ; Betreuer: Manfred Albrecht." Augsburg : Universität Augsburg, 2021. http://d-nb.info/1228787913/34.
Повний текст джерелаSharma, Shalini [Verfasser], Lambert [Akademischer Betreuer] Alff, and Oliver [Akademischer Betreuer] Gutfleisch. "Structural and magnetic properties of epitaxial rare-earth cobalt thin films / Shalini Sharma ; Lambert Alff, Oliver Gutfleisch." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2020. http://d-nb.info/1211726215/34.
Повний текст джерелаDeacon, Liam Matthew. "Structural, electronic and magnetic studies of polar zinc oxide surfaces and their interfaces with ultra-thin cobalt films." Thesis, University of Reading, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.625440.
Повний текст джерелаKenny, Leo Thomas. "Preparation and characterization of lithium cobalt oxide by chemical vapor deposition for application in thin film battery and electrochromic devices /." Thesis, Connect to Dissertations & Theses @ Tufts University, 1996.
Знайти повний текст джерелаAdviser: Terry E. Haas. Submitted to the Dept. of Chemistry. Includes bibliographical references. Access restricted to members of the Tufts University community. Also available via the World Wide Web;
Roy, Nirmita. "Electrical, Optical and Thermal Investigations of Cobalt Oxide-Antimony Doped Tin Oxide (CoO-ATO) Thin Films and Nanofiber Membranes." Scholar Commons, 2017. https://scholarcommons.usf.edu/etd/7441.
Повний текст джерелаMackay, Kevin George Hamilton. "Fabrication and characterisation of high moment thin films for inductive write heads." Thesis, Queen's University Belfast, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314178.
Повний текст джерелаZschiesche, Hannes. "Formation and segregation in cobalt silicide and manganese germanide thin films : correlative study by electron microscopy and atom probe tomography." Electronic Thesis or Diss., Aix-Marseille, 2019. http://www.theses.fr/2019AIXM0219.
Повний текст джерелаGermanide and silicide thin films have application in different field such as thermoelectricity, magnetism and/or microelectronics. This PhD thesis study the formation, structure and chemistry of Mn5Ge3 thin films, which is interesting due to its ferromagnetic property for possible spintronic devices, and of CoSi2 thin films, which are used as contact materials. Two new epitaxial relationships between Mn5Ge3 grains and (111)Ge have been identified. The chemical purity of Mn5Ge3 has been related to the deposition by magnetron sputtering: Mn5Ge3 thin films grown by reactive-diffusion are relatively pure while the significant incorporation of impurities in Mn5Ge3 grown by non-diffusive reaction is beneficial for the ferromagnetic property. Ti segregation to CoSi2 grain boundaries has been quantified in CoSi2 grown from a Co/Ti/Si thin film. Additionally, an inhomogeneous distribution of Ti at CoSi2 grain boundary has been related to the defect density. A method has been developed for correlative structural and chemical investigations at the atomic scale on selected interfaces. Finally, a method to quantify the triple junction segregation has been proposed
Butterfield, Martin Thomas. "Surface structure of ultrathin metal films deposited on copper single crystals." Thesis, Loughborough University, 2000. https://dspace.lboro.ac.uk/2134/33132.
Повний текст джерелаKretzschmar, B. S. M., K. Assim, Andrea Preuß, A. Heft, Marcus Korb, Marc Pügner, Thomas Lampke, B. Grünler, and Heinrich Lang. "Cobalt and manganese carboxylates for metal oxide thin film deposition by applying the atmospheric pressure combustion chemical vapour deposition process." Technische Universität Chemnitz, 2018. https://monarch.qucosa.de/id/qucosa%3A21422.
Повний текст джерелаLardjane, Soumia. "Etude des propriétés structurales, électroniques et magnétiques du semi-conducteur magnétique dilué : ZnO dopé au Cobalt." Phd thesis, Université de Technologie de Belfort-Montbeliard, 2013. http://tel.archives-ouvertes.fr/tel-01005359.
Повний текст джерелаWilson, Leon Kerr. "The study of transition metal surfaces and thin films with inverse photoemission and scanning tunnelling microscopy." Thesis, University of Liverpool, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367084.
Повний текст джерелаStichauer, Libor. "Étude des propriétés optiques et magnéto-optiques de films nanocristallins de ferrite de cobalt." Nancy 1, 1994. http://www.theses.fr/1994NAN10365.
Повний текст джерелаAndrade, Gustavo Fernandes Souza. "Adsorção molecular em metais de transição (ferro, cobalto e níquel) monitorada pela técnica de espalhamento Raman intensificado pela superfície: diferentes tipos de substratos metálicos." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/46/46132/tde-24102007-134700/.
Повний текст джерелаSurface-enhanced Raman spectra of organic adsorbates on Fe, Co and Ni electrodes were acquired after the development of specific methodologies described in this PhD thesis. Electrochemical activation procedures were developed for the three bare metaIs electrodes. The electrochemical activation protocols were applied for the acquisition of SERS spectra of pyridine, 1,10-phenanthroline and 2- and 4-aminopyridine on Fe, Co e Ni electrodes. The total and relative intensities changes of SERS bands with the applied potentials were explained by the charge transfer mechanism, which had a large contribution in the SERS enhancement for these metaIs. The enhancement factor determined for the three metaIs, on the 102-103 times range, strongly depends on the adsorbate\' s vibrational modes. The SERS spectra of pyridine on the transition metals and vibrational spectra calculations of pyridine with metallic atoms showed that the formation of α-pyridil in the adsorption on transition metaIs, suggested in the literature, didn\'t occur. The calculated pyridine SERS excitation profiles present reasonable correlaton with the experimental data. The SERS results for 1,10-phenanthroline showed that the free molecule was the adsorbing species. The potential dependence of the SERS relative intensities was different from those of the resonance Raman spectra of 1,10-phenanthroline complexes with transition metal ions, indicating that different excited states were probed by the two techniques. 2-aminopyridine adsorbed through the pyridinic ring at less negative potentials and through both pyridinic and aminic nitrogens at more negative potentials on Co and Ni electrodes, but for Fe electrode it adsorbed exclusively through the pyridinic nitrogen. 4-aminopyridine adsorbed perpendicularly to the electrode. In 0,1 mol.L-1 KCl electrolytic solution, 4-aminopyridine changed from weak1y bound to a surface complex similar to the synthesized complex at more negative potentials. In 0,1 mol.L-1 KI electrolytic solution, both species were observed in a larger potential interval. On the Ni electrode, protonated 4aminopyridine was observed for V = -0.7 V, and for more negative potentials a surface complex, similar to the synthesized one, was observed. The electrodeposition of ultrathin film of Co and Ni on electrochemically-activated Ag electrodes allowed obtaining SERS spectra of pyridine with high enhancement factors. The SERS spectra of py for films thickness higher than 2 monolayers of Co or Ni presented intense bands of pyridine adsorbed on these metals, and no bands of pyridine adsorbed on Ag were observed, indicanting the absence of pinholes in the films. The relative intensities of SERS spectra on the thin films were similar to those obtained for the SERS of pyridine on the bare metaIs electrodes for films thicker than 7 monolayers, but with SERS intensity 100 times higher. The SERS activity and signal strength reproducibility of Au nanostructured substrates obtained by electrodeposition on a polystyrene masking were evaluated. The SERS spectra of 4-mercaptopyridine adsorbed on optimized electrodes presented intensities 2 times greater than those of the electrochemically activated Au electrode. The SERS intensity reproducibility for these substrates was ± 15%, indicating the potential use of such substrates as sensors.
Mukherjee, Devajyoti. "Growth and Characterization of Epitaxial Thin Films and Multiferroic Heterostructures of Ferromagnetic and Ferroelectric Materials." Scholar Commons, 2010. http://scholarcommons.usf.edu/etd/3622.
Повний текст джерелаClem, William Charles. "Mesenchymal stem cell interaction with nanonstructured biomaterials for orthopaedic applications." Birmingham, Ala. : University of Alabama at Birmingham, 2008. https://www.mhsl.uab.edu/dt/2009r/clem.pdf.
Повний текст джерелаAdditional advisors: Yogesh K. Vohra, Xu Feng, Jack E. Lemons, Timothy M. Wick. Description based on contents viewed July 8, 2009; title from PDF t.p. Includes bibliographical references.
Martin, Élodie. "Modulation de l'anisotropie dans le ferrite de cobalt en couches minces pour des applications en électronique de spin." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAE026/document.
Повний текст джерелаThe field of magnetic storage is in constant progress to constantly push further the storage capacity of the device. A promising approach is the perpendicular magnetic recording of datas. The material presented in this manuscript is cobalt ferrite. It is an excellent candidate for the realization of perpendicular storage device due to its properties. The present work deals with the modification of the magnetic anisotropy by doping the ferrite cobalt thin films with rare earth elements. We have demonstrated the possibility to modulate the easy magnetization axis of undoped cobalt ferrite by changing the partial pressure of O2/N2 during the elaboration of the thin films. We have also highlighted the insertion of rare earth elements into the structure of the cobalt ferrite although their important ionic radii. The impact of the rare earth anisotropy on the magnetic properties of the ferrite cobalt has also been observed
Kim, Jiyeon [Verfasser], Roland A. [Gutachter] Fischer, and Anjana [Gutachter] Devi. "Organometallic chemistry of transition metal-group 13 complexes and metal-organic precursor synthesis for ALD cobalt oxide thin films / Jiyeon Kim ; Gutachter: Roland A. Fischer, Anjana Devi." Bochum : Ruhr-Universität Bochum, 2017. http://d-nb.info/1144613949/34.
Повний текст джерелаCarlomagno, Ilaria. "L'origine de la réponse magnétique particulière des films minces de Co intercalés entre Graphene et Ir(111)." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAY025/document.
Повний текст джерелаThis thesis focuses on the structural evolution and the peculiar magnetic response of Cobalt films observed upon intercalation between Graphene and Ir(111).The origin of the exotic magnetic behaviour of such films cite{ROUGEMAILLE} has not been found yet. In this respect, the final goal of this work is to probe the effects of the structural anisotropy on the magnetic anisotropy.Several parameters such as: film thickness, annealing times and temperatures, Graphene presence, and Co local environment were taken into account as possible sources of structural anisotropy.A complete analysis was carried out using complementary, state-of-the-art techniques. While laboratory techniques such as X-ray Photoelectron Spectroscopy (XPS) and Magneto-Optic Kerr Effect (MOKE) provided information on the Co distribution along the direction perpendicular to the surface, and on the magnetic response, synchrotron radiation techniques such as X-ray Absorption Spectroscopy (XAS) and Grazing Incidence X-ray Diffraction (GIXD) probed the local structure and the long range order of the films.The analysis presented in this thesis includes the surface effects at the Co/Ir interface, the local Co environment, the crystalline structure of the film and the system roughness and average disorder.In particular, the evolution of such parameters is presented and discussed together with their effect on the macroscopic magnetic response of the intercalated films.The results demonstrate that thermal treatments affect Co morphology, roughness, and local coordination. Such effects alter the film structure affecting the overall magnetic anisotropy. This information alone is valuable for applicative purposes. Moreover, the description of the micro-structural modifications provides a deep insight into the physical properties of intercalated Co films
COSTA, e. SILVA DANILO L. "Filmes finos de carbono depositados por meio da técnica de magnetron sputtering usando cobalto, cobre e níquel como buffer-layers." reponame:Repositório Institucional do IPEN, 2015. http://repositorio.ipen.br:8080/xmlui/handle/123456789/23916.
Повний текст джерелаMade available in DSpace on 2015-10-08T12:18:50Z (GMT). No. of bitstreams: 0
Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
ROMERO, SERGIO A. "Producao e caracterizacao de filmes finos de SmCo." reponame:Repositório Institucional do IPEN, 2001. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10915.
Повний текст джерелаMade available in DSpace on 2014-10-09T13:56:26Z (GMT). No. of bitstreams: 1 07175.pdf: 4800774 bytes, checksum: 7591ed2b66c61d81600006d10b99afb7 (MD5)
Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
Lawson, Thomas Ryan. "Micro-Raman spectroscopy and dry turning evaluations of nanostructured diamond films deposited on tungsten-carbide lathe inserts." Birmingham, Ala. : University of Alabama at Birmingham, 2008. https://www.mhsl.uab.edu/dt/2008m/lawson.pdf.
Повний текст джерелаSÁ, Luciano Vaz de. "Magnetostricção e Anisotropia Magnética de filmes de Cobalto em substratos de vidro e silício." Universidade Federal de Goiás, 2011. http://repositorio.bc.ufg.br/tede/handle/tde/806.
Повний текст джерелаThe Ferromagnetic Resonance technique is used to study the magnetostriction and the magnetic anisotropy of cobalt thin films grown on glass and silicon substrates. The effective values of the magnetostriction and magnetic anisotropy constants obtained do not agree with known values in the literature, but show the viability of the experimental method used [with the film glued to a cantilever beam under stress] to study the magnetostriction of magnetic thin films.
Este trabalho tem como objetivo estudar a magnetostricção e a anisotropia magnética de filmes finos de cobalto usando a técnica de Ressonância Ferromagnética. As amostras investigadas foram produzidas pela técnica de magnetron sputtering, depositadas sobre substratos de vidro e silício, com espessuras variando na faixa de 10 a 20 nm. Os valores efetivos obtidos para as constantes de magnetostricção e de anisotropia magnética de volume e de superfície diferem de valores conhecidos na literatura, mas comprovam a viabilidade do procedimento experimental aplicado [com o filme fixo sobre uma haste cantilever sujeita a stress] para investigar a magnetostricção de filmes finos magnéticos.