We have measured the temperature-dependent electric polarization P(T) of multiferroic rare-earth (R) manganese oxides RMn2O5 using both typical pyroelectric measurements and hysteresis loops with the double-wave method (DWM), and revealed the complicated behavior of the P(T). RMn 2O5 single crystal samples often exhibit a tendency to macroscopically polarize without applying an external electric field. We have found that the tendency appeared in P(T) by the pyroelectric measurement can be measured by the DWM loops. The tendency to polarize is equivalent to asymmetric non-hystersis loops obtained by the DWM. We clarify the relationship between P(T) by pyroelectric measurement and that by the DWM loops, which can warrant the measured P(T).
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - 2011|
|Event||International Conference on Frustration in Condensed Matter, ICFCM - Sendai, Japan|
Duration: Jan 11 2011 → Jan 14 2011
ASJC Scopus subject areas
- Physics and Astronomy(all)