基于自旋电子学的太赫兹波产生方法  

THz wave generation methods based on spintronics

作　　者：冯正[1,2] 谭为[1,2] 成彬彬[1,2] 邓贤进[1,2] FENG Zheng;TAN Wei;CHENG Binbin;DENG Xianjin(Institute of Electronic Engineering,China Academy of Engineering Physics,Mianyang Sichuan 621999,China;Microsystem and Terahertz Research Center, China Academy of Engineering Physics,Mianyang Sichuan 621999,China)

机构地区：[1]中国工程物理研究院电子工程研究所,四川绵阳621999 [2]中国工程物理研究院微系统与太赫兹研究中心,四川绵阳621999

出　　处：《太赫兹科学与电子信息学报》2016年第4期502-507,共6页Journal of Terahertz Science and Electronic Information Technology

基　　金：国家自然科学基金青年科学基金资助项目(11504345);中国工程物理研究院微系统与太赫兹研究中心专项资助项目(MT2015-11-04);中国工程物理研究院成都基地团队培育专项资助项目(PY2014-5-1)

摘　　要：自旋电子学的某些物理现象,如交换型磁振子、反铁磁共振、超快自旋动力学等,其特征频率刚好处于太赫兹频段。利用相应的自旋电子学现象和原理,研究人员发现和建立了若干新型的太赫兹波产生方法,为新型太赫兹源的实现和发展提供指导方向。这些新型产生方法有:a)自旋注入产生太赫兹波;b)基于反铁磁共振的太赫兹波产生;c)基于超快自旋动力学的太赫兹波产生。理论及实验结果表明,基于自旋电子学的太赫兹产生方法具有较大的潜力,有望推动太赫兹技术的发展。Spintronics is an exciting discipline that involves the study of active control andmanipulation of spin degrees of freedom in solid-state systems, the study of spin transport and invention ofnovel spin-based devices. Some physical phenomena in spintronics, such as exchange magnon,antiferromagnetic resonance, ultrafast spin dynamics, present characteristic frequencies in the THz range.Utilizing the physical principles, the researchers have found and developed several novel THz wavegeneration methods which give instructions to develop novel THz sources. The methods include: a) THzwave generation based on spin injection; b) THz wave generation based on antiferromagnetic resonance;c) THz wave generation based on ultrafast spin dynamics. THz wave generation methods based onspintronics have great potential which may promote the progress of THz technology.

关 键 词：太赫兹波 自旋电子学 自旋注入 磁振子 反铁磁共振 超快自旋动力学 

分 类 号：O441.4[理学—电磁学]