期刊
NATURE COMMUNICATIONS
卷 6, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms9190
关键词
-
资金
- European Commission [228673, FP7-ICT-2013-613024-GRASP]
- EPSRC of the UK [EP/E055087/1]
- Netherlands Organization for Scientific Research (NWO)
- Foundation for Fundamental Research on Matter (FOM)
- European Union [NMP3-LA-2010-246102, 280555, 214810]
- European Research Council under the European Union/ERC [257280]
- ERC [339813]
- Russian Ministry of Education and Science [14.B25.31.0025, 14.750.31.0034]
- RFBR-NSFC project [12-02-91172-a, 51211120184, 51511130037]
- Bureau of International Cooperation, CAS
- NSFC [51372257, 51572275]
- NSFC-NWO [51211130596]
- EU [281043]
- NWO
- EPSRC fellowship [EP/K041215/1]
- European Research Council (ERC) [339813] Funding Source: European Research Council (ERC)
- EPSRC [EP/E055087/1, EP/K041215/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E055087/1, EP/K041215/1] Funding Source: researchfish
Ultrafast non-thermal manipulation of magnetization by light relies on either indirect coupling of the electric field component of the light with spins via spin-orbit interaction or direct coupling between the magnetic field component and spins. Here we propose a scenario for coupling between the electric field of light and spins via optical modification of the exchange interaction, one of the strongest quantum effects with strength of 10(3) Tesla. We demonstrate that this isotropic opto-magnetic effect, which can be called inverse magneto-refraction, is allowed in a material of any symmetry. Its existence is corroborated by the experimental observation of terahertz emission by spin resonances optically excited in a broad class of iron oxides with a canted spin configuration. From its strength we estimate that a sub-picosecond modification of the exchange interaction by laser pulses with fluence of about 1mJ cm(-2) acts as a pulsed effective magnetic field of 0.01 Tesla.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据