期刊
PHYSICAL REVIEW B
卷 78, 期 14, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.78.140401
关键词
-
资金
- KAKENHI [20674005, 20001004]
- JSPS [18]
We have grown single crystals of a triangular lattice antiferromagnet (TLA), CuCrO2, and investigated the correlation between magnetic and dielectric properties. Two magnetic phase transitions are observed at T-N2 approximate to 24.2 K and T-N1 approximate to 23.6 K. It was found that ferroelectric polarization along the triangular lattice plane develops at T-N1, suggesting that the system undergoes a transition into an out-of-plane 120 degrees spin-chiral phase at T-N1. The TLA provides an opportunity for unique magnetoelectric control of spin-chiral ferroelectric domain structures by means of electric and/or magnetic fields.
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