Abstract
In a multiferroic orthoferrite , which shows electric-field-(-)driven magnetization () reversal due to a tight clamping between polarization () and , a gigantic effect of magnetic-field () biasing on hysteresis loops is observed in the case of rapid sweeping. The magnitude of the bias field can be controlled by varying the magnitude of , and its sign can be reversed by changing the sign of or the relative clamping direction between and . The origin of this unconventional biasing effect is ascribed to the difference in the Zeeman energy between the and states coupled with the states with opposite sign.
- Received 6 October 2013
DOI:https://doi.org/10.1103/PhysRevLett.112.037203
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