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Electromagnons in multiferroic YMn2O5 and TbMn2O5
- Sushkov, A. B.;
- Valdes Aguilar, R. ;
- Cheong, S.-W.;
- Drew, H. D.;
- Park, S-W.
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201초록
Based on temperature dependent far infrared transmission spectra of YMn2O5 and TbMn2O5 single crystals, we report the observation of electric dipole-active magnetic excitations, or electromagnons, in these multiferroics. Electromagnons are found to be directly responsible for the steplike anomaly of the static dielectric constant at the commensurate-incommensurate magnetic transition and are the origin of the colossal magneto-dielectric effect reported in these multiferroics.
키워드
POLARIZATION
- 제목
- Electromagnons in multiferroic YMn2O5 and TbMn2O5
- 저자
- Sushkov, A. B.; Valdes Aguilar, R. ; Cheong, S.-W.; Drew, H. D.; Park, S-W.
- 발행일
- 2007-01
- 유형
- Article
- 권
- 98
- 호
- 2
- 언어
- ENG
- 출판사
- AMERICAN PHYSICAL SOC
- 발행국가
- 미국
- ISSN
- E 1079-7114
P 0031-9007