Estudio de propiedades magnéticas en películas ultra delgadas
T-MOKE and VSM systems were used to characterize thin films of cobalt oxide (CoO) alloy with thicknesses of 2.5 nm (CoO) and 5 nm (MultiCoO). Measurements were conducted for fields below 1000 Oe in a temperature range from 30K to 450K. Variations in the hysteresis curves with changes in temperature...
- Autores:
-
Montañez Gil, Samuel Mateo
- Tipo de recurso:
- Trabajo de grado de pregrado
- Fecha de publicación:
- 2024
- Institución:
- Universidad de los Andes
- Repositorio:
- Séneca: repositorio Uniandes
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.uniandes.edu.co:1992/75051
- Acceso en línea:
- https://hdl.handle.net/1992/75051
- Palabra clave:
- T-MOKE
Junturas túnel magnéticas
Magnetismo
Óxido de Cobalto
VSM
Coercitividad
Remanence
MTJ
Ferromagnetismo
Magnetism
Cobalt Oxide
Coercivity
Remanencia
Magnetic tunnel junction
Física
- Rights
- openAccess
- License
- Attribution-NonCommercial-ShareAlike 4.0 International
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Estudio de propiedades magnéticas en películas ultra delgadas |
| title |
Estudio de propiedades magnéticas en películas ultra delgadas |
| spellingShingle |
Estudio de propiedades magnéticas en películas ultra delgadas T-MOKE Junturas túnel magnéticas Magnetismo Óxido de Cobalto VSM Coercitividad Remanence MTJ Ferromagnetismo Magnetism Cobalt Oxide Coercivity Remanencia Magnetic tunnel junction Física |
| title_short |
Estudio de propiedades magnéticas en películas ultra delgadas |
| title_full |
Estudio de propiedades magnéticas en películas ultra delgadas |
| title_fullStr |
Estudio de propiedades magnéticas en películas ultra delgadas |
| title_full_unstemmed |
Estudio de propiedades magnéticas en películas ultra delgadas |
| title_sort |
Estudio de propiedades magnéticas en películas ultra delgadas |
| dc.creator.fl_str_mv |
Montañez Gil, Samuel Mateo |
| dc.contributor.advisor.none.fl_str_mv |
Patiño Zapata, Edgar Javier |
| dc.contributor.author.none.fl_str_mv |
Montañez Gil, Samuel Mateo |
| dc.contributor.jury.none.fl_str_mv |
Valencia González, Alejandra Catalina |
| dc.subject.keyword.eng.fl_str_mv |
T-MOKE Junturas túnel magnéticas Magnetismo Óxido de Cobalto VSM Coercitividad Remanence MTJ |
| topic |
T-MOKE Junturas túnel magnéticas Magnetismo Óxido de Cobalto VSM Coercitividad Remanence MTJ Ferromagnetismo Magnetism Cobalt Oxide Coercivity Remanencia Magnetic tunnel junction Física |
| dc.subject.keyword.spa.fl_str_mv |
Ferromagnetismo Magnetism Cobalt Oxide Coercivity Remanencia Magnetic tunnel junction |
| dc.subject.themes.none.fl_str_mv |
Física |
| description |
T-MOKE and VSM systems were used to characterize thin films of cobalt oxide (CoO) alloy with thicknesses of 2.5 nm (CoO) and 5 nm (MultiCoO). Measurements were conducted for fields below 1000 Oe in a temperature range from 30K to 450K. Variations in the hysteresis curves with changes in temperature and magnetic field were observed. Magnetic properties, such as coercive field and remanence, indicated a phase transition in the range of 147K to 150K, and a decrease in remanence at very high or low temperatures. Both systems showed similar trends between 150K and 300K, although differences were found at lower temperatures due to VSM limitations. The FC and ZFC measurements of the VSM system indicated minimal changes in magnetization above 200K. The effect of temperature on magnetic properties was significant in the T-MOKE system, so it is necessary to use precise techniques to ensure thermal stability. |
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2024 |
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2024-08-09T15:43:39Z |
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2024-08-09T15:43:39Z |
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2024-07-30 |
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Trabajo de grado - Pregrado |
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Stångberg Valgeborg, F. (2016). Element-Specific Magnetization Dynamics Using T-MOKE at the HELIOS Laboratory. Herreño Fierro, C. A. (2016). Magnetoplasmónica de estructuras multicapa AulColAu. Palacios Vera, J. S. (2012). Junturas túnel-producción y caracterización. Griffiths, D. J. (2005). Introduction to electrodynamics, American Association of Physics Teachers. Phys. Teach, 73, 574. Blas del Hoyo, A. D. (2006). Modelización de la histéresis magnética y su aplicación al cálculo numérico en máquinas eléctricas. Universitat Politècnica de Catalunya. Jiles, D. (2015). Introduction to magnetism and magnetic materials. CRC press. Kittel, C., & McEuen, P. (2018). Introduction to solid state physics. John Wiley & Sons. Herreño‐Fierro, C. A., & Patiño, E. J. (2015). Maximization of surface‐enhanced transversal magneto‐optic Kerr effect in Au/Co/Au thin films. physica status solidi (b), 252(2), 316-322. Krüger, E. (2021). Magnetic structure of CoO. Symmetry, 13(8), 1513. Cullity, B. D., & Graham, C. D. (2011). Introduction to magnetic materials. John Wiley & Sons. Cadi-Essadek, A., Roldan, A., Santos-Carballal, D., Ngoepe, P. E., Claeys, M., & de Leeuw, N. H. (2021). DFT+ U study of the electronic, magnetic and mechanical properties of Co, CoO, and Co3O4. South African Journal of Chemistry, 74, 8-16. Jamali, M., Lv, Y., Zhao, Z., & Wang, J. P. (2014). Sputtering of cobalt film with perpendicular magnetic anisotropy on disorder-free graphene. AIP Advances, 4(10). Patino, E. J., Aprili, M., Blamire, M. G., & Maeno, Y. (2013). Vortex flipping in superconductor/ferromagnet spin-valve structures. Physical Review B—Condensed Matter and Materials Physics, 87(21), 214514. Weinberger, P. (2008). John Kerr and his effects found in 1877 and 1878. Philosophical Magazine Letters, 88(12), 897-907. Thomas, S., & Nochehdehi, A. R. (Eds.). (2022). Handbook of magnetic hybrid nanoalloys and their nanocomposites. Springer Nature. Barman, A., Kimura, T., Otani, Y., Fukuma, Y., Akahane, K., & Meguro, S. (2008). Benchtop time-resolved magneto-optical Kerr magnetometer. Review of Scientific Instruments, 79(12). Hayek, J. N., Herreño-Fierro, C. A., & Patiño, E. J. (2016). Enhancement of the transversal magnetic optic Kerr effect: Lock-in vs. hysteresis method. Review of Scientific Instruments, 87(10). Rafique, M. (2015). Study of the Magnetoelectric Properties of Multiferroic Thin Films and Composites for Device Applications (Doctoral dissertation, COMSATS Institute of Information Technology Lahore Campus-Pakistan). Blundell, S. (2001). Magnetism in condensed matter. OUP Oxford. |
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Patiño Zapata, Edgar Javiervirtual::19872-1Montañez Gil, Samuel MateoValencia González, Alejandra Catalinavirtual::19873-12024-08-09T15:43:39Z2024-08-09T15:43:39Z2024-07-30https://hdl.handle.net/1992/75051instname:Universidad de los Andesreponame:Repositorio Institucional Sénecarepourl:https://repositorio.uniandes.edu.co/T-MOKE and VSM systems were used to characterize thin films of cobalt oxide (CoO) alloy with thicknesses of 2.5 nm (CoO) and 5 nm (MultiCoO). Measurements were conducted for fields below 1000 Oe in a temperature range from 30K to 450K. Variations in the hysteresis curves with changes in temperature and magnetic field were observed. Magnetic properties, such as coercive field and remanence, indicated a phase transition in the range of 147K to 150K, and a decrease in remanence at very high or low temperatures. Both systems showed similar trends between 150K and 300K, although differences were found at lower temperatures due to VSM limitations. The FC and ZFC measurements of the VSM system indicated minimal changes in magnetization above 200K. The effect of temperature on magnetic properties was significant in the T-MOKE system, so it is necessary to use precise techniques to ensure thermal stability.En este estudio, se utilizaron los sistemas T-MOKE y VSM para caracterizar películas delgadas de aleación de óxido de cobalto (CoO) con espesores de 2.5 nm (CoO) y 5 nm (MultiCoO). Las mediciones se realizaron para campos inferiores a 1000 Oe en un rango de temperaturas de 30K a 450K. Se observaron variaciones en las curvas de histéresis con cambios de temperatura y campo magnético. Las propiedades magnéticas, como el campo coercitivo y la remanencia, indicaron una transición de fase en el rango de 147K a 150K, y una disminución de la remanencia a temperaturas muy altas o bajas. Ambos sistemas mostraron tendencias similares entre 150K y 300K, aunque se encontraron diferencias a temperaturas más bajas debido a las limitaciones del VSM. Las mediciones FC y ZFC del sistema VSM indicaron cambios mínimos en la magnetización por encima de los 200K. El efecto de la temperatura en las propiedades magnéticas fue significativo en el sistema T-MOKE, por lo que es necesario utilizar técnicas precisas para asegurar la estabilidad térmica.PregradoMateria condensada, baja dimensionalidad52 páginasapplication/pdfspaUniversidad de los AndesFísicaFacultad de CienciasDepartamento de FísicaAttribution-NonCommercial-ShareAlike 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Estudio de propiedades magnéticas en películas ultra delgadasTrabajo de grado - Pregradoinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_7a1fTexthttp://purl.org/redcol/resource_type/TPT-MOKEJunturas túnel magnéticasMagnetismoÓxido de CobaltoVSMCoercitividadRemanenceMTJFerromagnetismoMagnetismCobalt OxideCoercivityRemanenciaMagnetic tunnel junctionFísicaStångberg Valgeborg, F. (2016). Element-Specific Magnetization Dynamics Using T-MOKE at the HELIOS Laboratory.Herreño Fierro, C. A. (2016). Magnetoplasmónica de estructuras multicapa AulColAu.Palacios Vera, J. S. (2012). Junturas túnel-producción y caracterización.Griffiths, D. J. (2005). Introduction to electrodynamics, American Association of Physics Teachers. Phys. Teach, 73, 574.Blas del Hoyo, A. D. (2006). Modelización de la histéresis magnética y su aplicación al cálculo numérico en máquinas eléctricas. Universitat Politècnica de Catalunya.Jiles, D. (2015). Introduction to magnetism and magnetic materials. CRC press.Kittel, C., & McEuen, P. (2018). Introduction to solid state physics. John Wiley & Sons.Herreño‐Fierro, C. A., & Patiño, E. J. (2015). Maximization of surface‐enhanced transversal magneto‐optic Kerr effect in Au/Co/Au thin films. physica status solidi (b), 252(2), 316-322.Krüger, E. (2021). Magnetic structure of CoO. Symmetry, 13(8), 1513.Cullity, B. D., & Graham, C. D. (2011). Introduction to magnetic materials. John Wiley & Sons.Cadi-Essadek, A., Roldan, A., Santos-Carballal, D., Ngoepe, P. E., Claeys, M., & de Leeuw, N. H. (2021). DFT+ U study of the electronic, magnetic and mechanical properties of Co, CoO, and Co3O4. South African Journal of Chemistry, 74, 8-16.Jamali, M., Lv, Y., Zhao, Z., & Wang, J. P. (2014). Sputtering of cobalt film with perpendicular magnetic anisotropy on disorder-free graphene. AIP Advances, 4(10).Patino, E. J., Aprili, M., Blamire, M. G., & Maeno, Y. (2013). Vortex flipping in superconductor/ferromagnet spin-valve structures. Physical Review B—Condensed Matter and Materials Physics, 87(21), 214514.Weinberger, P. (2008). John Kerr and his effects found in 1877 and 1878. Philosophical Magazine Letters, 88(12), 897-907.Thomas, S., & Nochehdehi, A. R. (Eds.). (2022). Handbook of magnetic hybrid nanoalloys and their nanocomposites. Springer Nature.Barman, A., Kimura, T., Otani, Y., Fukuma, Y., Akahane, K., & Meguro, S. (2008). Benchtop time-resolved magneto-optical Kerr magnetometer. Review of Scientific Instruments, 79(12).Hayek, J. N., Herreño-Fierro, C. A., & Patiño, E. J. (2016). Enhancement of the transversal magnetic optic Kerr effect: Lock-in vs. hysteresis method. Review of Scientific Instruments, 87(10).Rafique, M. (2015). Study of the Magnetoelectric Properties of Multiferroic Thin Films and Composites for Device Applications (Doctoral dissertation, COMSATS Institute of Information Technology Lahore Campus-Pakistan).Blundell, S. (2001). Magnetism in condensed matter. OUP Oxford.202014559Publicationhttps://scholar.google.es/citations?user=bx4dJNgAAAAJvirtual::19872-1https://scholar.google.es/citations?user=7Fa-MFYAAAAJvirtual::19873-10000-0002-7476-6119virtual::19873-1https://scienti.minciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0001092782virtual::19872-1https://scienti.minciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0001337192virtual::19873-1f817a1fd-0070-4f75-a317-2a4d7085c6efvirtual::19872-1f817a1fd-0070-4f75-a317-2a4d7085c6efvirtual::19872-1e676d910-c320-4862-b7d4-2d8cc27eea1bvirtual::19873-1e676d910-c320-4862-b7d4-2d8cc27eea1bvirtual::19873-1ORIGINALCaracterización Magnética de películas ultra delgadas - Proyecto de Grado (2024).pdfCaracterización Magnética de películas ultra delgadas - Proyecto de Grado (2024).pdfapplication/pdf31548023https://repositorio.uniandes.edu.co/bitstreams/f2eeca33-92c5-4f93-9b9f-e050daf6b47e/download3e64afb78149c612caca566d47bcb7adMD51Autorizacion Tesis - Samuel Montañez FIRMADO.pdfAutorizacion Tesis - 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