Detailed Information
Cited 0 time in 
Cited 0 time in 
Cited 0 time in
Metadata Downloads
Spiral spin structures and origin of the magnetoelectric coupling in YMn2O5
- Authors
- Kim, J. -H.; Lee, S. -H.; Park, S. I.; Kenzelmann, M.; Harris, A. B.; Schefer, J.; Chung, J. -H.; Majkrzak, C. F.; Takeda, M.; Wakimoto, S.; Park, S. Y.; Cheong, S-W.; Matsuda, M.; Kimura, H.; Noda, Y.; Kakurai, K.
- Issue Date
- 12월-2008
- Publisher
- AMER PHYSICAL SOC
- Keywords
- ferroelectric materials; ferroelectric transitions; ferromagnetic materials; magnetoelectric effects; magnetostriction; multiferroics; neutron diffraction; yttrium compounds
- Citation
- PHYSICAL REVIEW B, v.78, no.24
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW B
- Volume
- 78
- Number
- 24
- ISSN
- 2469-9950
- Abstract
- By combining neutron four-circle diffraction and polarized neutron-diffraction techniques we have determined the complex spin structures of a multiferroic YMn2O5 that exhibits two ferroelectric phases at low temperatures. The obtained magnetic structure has spiral components in both the low-temperature ferroelectric phases that are magnetically commensurate and incommensurate, respectively. Among proposed microscopic theories for the magnetoelectric coupling, our results are consistent with both the spin-current mechanism and the magnetostriction mechanism. Our results also explain why the electric polarization changes at the low-temperature commensurate-to-incommensurate phase transition.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Science > Department of Physics > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.