Magnetic Dynamics in Antiferromagnetically-Coupled Ferrimagnets: The Role of Angular Momentum
暫譯: 反鐵磁耦合鐵磁體中的磁動力學:角動量的角色
Okuno, Takaya
相關主題
商品描述
This book presents the theoretical and experimental investigations on antiferromagnetically coupled ferrimagnets and reveals new aspects of ferrimagnetic dynamics in terms of the role of angular momentum. The purpose of this book is to show readers that antiferromagnets/ferrimagnets are useful in spintronic devices in that (1) The non-adiabatic spin-transfer torque in antiferromagnets acts as a staggered magnetic field, which can drive the magnetic domain walls, and (2) The Gilbert damping parameter α, the energy -dissipation rate associated with the magnetic dynamics of ferrimagnets, is insensitive to temperature in contrast to the conventional understanding that the effective α of ferrimagnets diverges at the angular momentum compensation temperature. This book provides readers with a scientific platform of ferrimagnetic dynamics, which serves as a useful basis for realizing the next -generation of spintronic devices.
商品描述(中文翻譯)
本書介紹了反鐵磁耦合的鐵磁體的理論與實驗研究,並揭示了角動量在鐵磁動力學中的新面向。本書的目的是向讀者展示反鐵磁體/鐵磁體在自旋電子裝置中的實用性,具體表現在以下兩點:(1) 反鐵磁體中的非絕熱自旋轉移扭矩充當交錯的磁場,能驅動磁域壁,(2) 吉爾伯特阻尼參數α,與鐵磁體的磁動力學相關的能量耗散率,對溫度不敏感,這與傳統理解相反,後者認為鐵磁體的有效α在角動量補償溫度下會發散。本書為讀者提供了鐵磁動力學的科學平台,這為實現下一代自旋電子裝置提供了有用的基礎。
作者簡介
Takaya Okuno received a Ph.D. in science in March 2020 from Kyoto University, where he engaged in the research of spintronics with his professor, Dr. Teruo Ono.
作者簡介(中文翻譯)
奧久貴也(Takaya Okuno)於2020年3月獲得京都大學的科學博士學位,期間他與指導教授小野輝夫(Dr. Teruo Ono)一起從事自旋電子學(spintronics)的研究。