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Chemical doping-induced flop of ferroelectric polarization in multiferroic Mn0.9Co0.1WO4
- Authors
- Song, Y. -S.; Yan, Li Qin; Lee, Bumsung; Chun, Sae Hwan; Kim, Kee Hoon; Kim, Sung Baek; Nogami, A.; Katsufuji, T.; Schefer, J.; Chung, J. -H.
- Issue Date
- 15-12월-2010
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW B, v.82, no.21
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW B
- Volume
- 82
- Number
- 21
- ISSN
- 1098-0121
- Abstract
- We studied the multiferroic properties of the incommensurate spiral phase of Mn1-xCoxWO4 using single-crystal neutron-diffraction and ferroelectric measurements. Whereas the rotational plane of the spin spiral is parallel to the b axis for x <= 0.05, it flops by 90 degrees for x=0.10. As a result, the direction of the ferroelectric polarization also flops from the b to the a axis. These results show that the orientation of the ferroelectric polarization in MnWO4 can be controlled via chemical doping.
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