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pro vyhledávání: '"Kyuhwe Kang"'
Autor:
Kyuhwe Kang, Hiroki Omura, Daniel Yesudas, OukJae Lee, Kyung-Jin Lee, Hyun-Woo Lee, Tomoyasu Taniyama, Gyung-Min Choi
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract Laser-induced ultrafast demagnetization is an important phenomenon that probes arguably the ultimate limits of the angular momentum dynamics in solid. Unfortunately, many aspects of the dynamics remain unclear except that the demagnetization
Externí odkaz:
https://doaj.org/article/e475492f4162467ca0ec34d4b9a046ba
Publikováno v:
AIP Advances, Vol 11, Iss 2, Pp 025024-025024-6 (2021)
Owing to the increasing demand for the improved management of thermal transport in devices, it is necessary to develop an optimal method for the measurement of anisotropic heat conduction. Although several techniques have been used to measure the hea
Externí odkaz:
https://doaj.org/article/6dccbd807d4344e3ad9eca80ef9c56b1
Autor:
Kyuhwe Kang, Gyung-Min Choi
Publikováno v:
Materials, Vol 14, Iss 11, p 2755 (2021)
The electron-phonon coupling (g) parameter plays a critical role in the ultrafast transport of heat, charge, and spin in metallic materials. However, the exact determination of the g parameter is challenging because of the complicated process during
Externí odkaz:
https://doaj.org/article/823ac29f559b46ffb542c29ce429be7b
Autor:
Kyuhwe Kang, Hiroki Omura, OukJae Lee, Kyung-Jin Lee, Hyun-Woo Lee, Tomoyasu Taniyama, Gyung-Min Choi
Laser-induced ultrafast demagnetization is an important phenomenon that probes arguably ultimate limits of the angular momentum dynamics in solid. Unfortunately, many aspects of the dynamics remain unclear except that the demagnetization transfers th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cff26c9d3795e9ffee8246aeade77ba
Publikováno v:
Applied Physics Letters. 118:252407
Antiferromagnets are promising materials for memory devices owing to their ultrafast spin dynamics. For efficient control of antiferromagnets, a direct interaction between the spin current and local magnetization of the sublattice is required. In thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61e720d716e73281faf64c05c35965af
https://doi.org/10.1063/5.0054502
https://doi.org/10.1063/5.0054502
Autor:
Kyuhwe Kang, Gyung-Min Choi
Publikováno v:
Journal of Magnetism and Magnetic Materials. 514:167156
Thermal interaction in an electron-phonon-magnon system in a ferromagnetic Ni film is investigated using a time-resolved pump-probe technique with thermoreflectance and magneto-optical Kerr effect. A nanoscale Au/Ni bilayer is used to induce thermal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2491647c3d7389fa8995c97e9675e17e
https://doi.org/10.1016/j.jmmm.2020.167156
https://doi.org/10.1016/j.jmmm.2020.167156