Abstract
It has been pointed out that domain walls (DW's) in spin-induced ferroelectrics play an important role in enhancing their magnetoelectric coupling, similar to the large magnetic permeability at around the coercive force in a ferromagnet. Here we report a systematic variation of the effect of 90° DW's on the magnetocapacitance in a series of helimagnetic multiferroic cocrystals Tb1-xDyxMnO3, which separate two regions with both the spin rotating planes and the ferroelectric polarization differing by 90°. We have also found a systematic switch of the rotation directions of the ferroelectric polarization in a canted magnetic field. The results are well explained by taking account of the thickness-dependent mobility of DW's.
| Original language | English |
|---|---|
| Article number | 060403 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 83 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2011 Feb 11 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Abe, N., Taniguchi, K., Sagayama, H., Umetsu, H., & Arima, T. (2011). Correlation between the mobility of domain wall and polarization flop direction in a slanted magnetic field in the helimagnetic ferroelectrics Tb 1-xDyxMnO3. Physical Review B - Condensed Matter and Materials Physics, 83(6), [060403]. https://doi.org/10.1103/PhysRevB.83.060403