Publication Date:
2015-02-19
Description:
Author(s): Takuya Aoyama, Ayato Iyama, Katsuya Shimizu, and Tsuyoshi Kimura In type-II multiferroics ferroelectricity is driven by magnetism, and the coupling between the two orders is generally larger than in conventional multiferroic materials. However, a critical problem that needs to be overcome for type-II multiferroics is that their polarization is far too low to be useful for applications. In this Rapid Communication, a group of researchers from Osaka University, Japan, demonstrate that in three prototypical manganites (TbMnO 3 , DyMnO 3 , and GdMnO 3 ) magnetic field can induce giant changes in polarization under high pressure. In the gadolinium compound, the change they have observed reaches the record high value of 1.3 μ C/cm 2 among the spin-driven multiferroics. [Phys. Rev. B 91, 081107] Published Wed Feb 18, 2015
Keywords:
Electronic structure and strongly correlated systems
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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