Соронзон-Оптик Керрийн Эффектэд суурилсан нимгэн хальсны соронзон шинж чанарын судалгаа
DOI:
https://doi.org/10.22353/physics.v39i631.10515Abstract
Хураангуй: Соронзон-Оптик Керрийн Эффект (СОКЭ) гэдэг нь соронзон орноор үйлчлэхэд материалаас ойсон гэрлийн туйлшрал өөрчлөгддөг үзэгдлийг хэлнэ. СОКЭ-д суурилсан төхөөрөмжөөр орчин үеийн спинтроник ба нанотехнологийн салбарын хэрэглээнд тохирох нимгэн хальсны соронзон шинж чанарын судалгааг хийх боломжтой. Энэхүү ажлаар нимгэн хальсан дээжийн гадаргууд нормаль чиглэлээр соронзон орон дагуу гэрэл тусгах (полар конфигурац) горимд СОКЭ хэмжих төхөөрөмжийг угсарч, Gd3Ga5O12 суурь ялтас дээр эпитакс аргаар ургуулсан 133 нм зузаантай, висмутаар хольцолсон Bi2:Y1Fe5O12 дээжийн талстын 100 чиглэл дагуу соронзон гистерезисийн муруйг хэмжсэн үр дүнг илтгэж байна.
Abstract:
The Magneto-Optic Kerr Effect (MOKE) refers to the change in the polarization state of light reflected from a material when an external magnetic field is applied. MOKE-based instrumentation setup enables high-precision investigation of the magnetic properties of thin films relevant to contemporary applications in spintronics and nanotechnology. In this work, a MOKE measurement set-up of the polar configuration where the incident light is directed normal to the sample surface and parallel to the applied magnetic field was designed and assembled. Using this setup, magnetic hysteresis loops were measured along the (100) crystallographic direction of a 133-nm-thick bismuth-substituted Bi: YIG thin film epitaxially grown on a Gd₃Ga₅O₁₂ substrate. The obtained results demonstrate the capability of the constructed system for reliable characterization of the magnetic properties of magnetic thin films.
Downloads
References
John Kerr LL.D. (1878) XXIV. On reflection of polarized light from the equatorial surface of a magnet, Philosophical Magazine Series 5, 5:30, 161-177, http://dx.doi.org/10.1080/14786447808639407
Suzuki, D. H., & Beach, G. S. D. (2024). Measurement of Kerr rotation and ellipticity in magnetic thin films by MOKE magnetometry. Journal of Applied Physics, 135(063901). https://doi.org/10.1063/5.0185341
Hubert, A., & Schäfer, R. (1998). Magnetic domains: The analysis of magnetic microstructures. Springer. https://doi.org/10.1007/978-3-540-85054-0
Fumagalli, P., & Schoenes, J. (2022). Magneto-optics: An introduction. Walter de Gruyter GmbH. https://doi.org/10.1515/9783110635300
Kehlberger, A., Richter, K., Onbasli, M. C., Jakob, G., Kim, D. H., Goto, T., Ross, C. A., Götz, G., Reiss, G., Kuschel, T., & Kläui, M. (2015). Enhanced Magneto-optic Kerr Effect and Magnetic Properties of CeY2Fe5O12 Epitaxial Thin Films. Physical Review Applied, 4(1). https://doi.org/10.1103/physrevapplied.4.014008
Hecht, E. (2017). Optics (5th ed.). Pearson Education.
Sposito, A., Gregory, S. A., de Groot, P. A. J., & Eason, R. W. (2014). Combinatorial pulsed laser deposition of doped yttrium iron garnet films on yttrium aluminium garnet. Journal of
Applied Physics, 115(5). https://doi.org/10.1063/1.4864134
Fakhrul, T., Tazlaru, S., Beran, L., Zhang, Y., Veis, M., & Ross, C. A. (2019). Magneto‐Optical Bi:YIG Films with High Figure of Merit for Nonreciprocal Photonics. Advanced Optical Materials, 7(13). Portico. https://doi.org/10.1002/adom.201900056
Deb, M., Popova, E., Fouchet, A., & Keller, N. (2012). Magneto-optical Faraday spectroscopy of completely bismuth-substituted Bi3Fe5O12 garnet thin films. Journal of Physics D: Applied Physics, 45(45), 455001. https://doi.org/10.1088/0022-3727/45/45/455001
Jesenska, E., Yoshida, T., Shinozaki, K., Ishibashi, T., Beran, L., Zahradnik, M., Antos, R., Kučera, M., & Veis, M. (2016). Optical and magneto-optical properties of Bi substituted yttrium iron garnets prepared by metal organic decomposition. Optical Materials Express, 6(6), 1986. https://doi.org/10.1364/ome.6.001986
Downloads
Published
Issue
Section
Categories
License
Copyright (c) 2026 Scientific transaction of the National University of Mongolia. Physics
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
