Magnetic switch of polarization in epitaxial orthorhombic YMnO3 thin films

被引：41
|
作者：
Fina, I. [1 ]
Fabrega, L. [1 ]
Marti, X. [1 ,2 ]
Sanchez, F. [1 ]
Fontcuberta, J. [1 ]
机构：
[1] CSIC, Inst Ciencia Mat Barcelona ICMAB, Bellaterra 08193, Catalonia, Spain
[2] Charles Univ Prague, Fac Math & Phys, Dept Condensed Matter Phys, Prague 12116 2, Czech Republic
来源：
APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 23期
关键词：
D O I：
10.1063/1.3523352
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on the growth and characterization of epitaxial thin films of orthorhombic YMnO3. It is found that a ferroelectric polarization exists along c-axis (P-c similar to 90 nC/cm(2)) and a magnetic field induces the development of a ferroelectric polarization along a-axis (P-a) while suppressing P-c. This field-induced switching is consistent with the existence of a cycloidal magnetic order in YMnO3. This finding evidences that a noncollinear spin arrangement in thin films allows switchable electrical polarization and of tunability of their dielectric response by magnetic field. (C) 2010 American Institute of Physics. [doi:10.1063/1.3523352]
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页数：3
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