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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2003.9
- 수록면
- 103 - 107 (5page)
이용수
초록· 키워드
오류제보하기
Relaxation of magnon in a very thin ferromagnetic film through spontaneous emission of photon shows an enhancement of the decay rate due to the phase coherence between the magnon and the planar component of wave vector of photon. The coupling between magnon and photon under a strong external magnetic field is considered only at the lowest order one-magnon one-photon process, which we believe the most dominant channel for the radiation from the system. Theoretical understanding related to the geometric confinement is pursued; the phase coherence due to the crystal symmetry in the film plane gives rise to superradiative emission on one hand, but the symmetry breaking along the direction perpendicular to the film renders the possibility of emission itself, providing the increased degrees of freedom for the photon.
목차
Abstract
1. Introduction
2. Interaction Hamiltonian
3. Coherent Decay of Magnon
4. Discussion
Acknowledgement
References
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