Colossal magnetodielectric effects in DyMn2O5
- Authors
- Hur, Namjung; Park, Soonyong; Sharma, Peter Anand; Guha, Sabyasachi; Cheong, Sang-Wook
- Issue Date
- Sep-2004
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW LETTERS, v.93, no.10
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 93
- Number
- 10
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/57346
- DOI
- 10.1103/PhysRevLett.93.107207
- ISSN
- 0031-9007
1079-7114
- Abstract
- We have investigated the detailed magnetic field dependence of the electric polarization and dielectric constant in (Tb,Dy,Ho)Mn2O5 where magnetic and ferroelectric transitions are intimately coupled. Our fundamental discovery is the unprecedented large change of the dielectric constant with magnetic field, particularly in DyMn2O5, associated with an unusual commensurate-incommensurate magnetic transition. This extraordinary effect appears to originate from the high sensitivity of the incommensurate state to external perturbation.
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Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
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