2010年8月
Spin Oscillations in Antiferromagnetic NiO Triggered by Circularly Polarized Light
PHYSICAL REVIEW LETTERS
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- 巻
- 105
- 号
- 7
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevLett.105.077402
- 出版者・発行元
- AMER PHYSICAL SOC
Coherent spin oscillations were nonthermally induced by circularly polarized pulses in the fully compensated antiferromagnet NiO. This effect is attributed to the action of the effective magnetic field generated by an inverse Faraday effect on the spins. The novelty of this mechanism is that spin oscillations are driven by the time derivative of the effective magnetic field which acts even on "pure'' antiferromagnets with zero net magnetic moment in the ground state. The measured frequencies (1.07 THz and 140 GHz) correspond to the out-of-plane and in-plane modes of antiferromagnetic spin oscillations.
- リンク情報
- ID情報
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- DOI : 10.1103/PhysRevLett.105.077402
- ISSN : 0031-9007
- Web of Science ID : WOS:000280827200011