Strain-driven noncollinear magnetic ordering in orthorhombic epitaxial YMnO3 thin films

被引：24

作者：

Marti, X. ^{[1
]}

Skumryev, V. ^{[2
,3
]}

Laukhin, V. ^{[1
,2
]}

Bachelet, R. ^{[1
]}

Ferrater, C. ^{[4
]}

Garcia-Cuenca, M. V. ^{[4
]}

Varela, M. ^{[4
]}

Sanchez, F. ^{[1
]}

Fontcuberta, J. ^{[1
]}

机构：

[1] Inst Ciencia Mat Barcelona ICMAB CSIC, Bellaterra 08193, Spain

[2] Inst Catala Recerca & Estudis Avancats, Barcelona 08010, Spain

[3] Univ Autonoma Barcelona, Dept Fis, Bellaterra 08193, Spain

[4] Univ Barcelona, Dept Fis Aplicada & Opt, E-08028 Barcelona, Spain

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 108卷 / 12期

关键词：

PEROVSKITE;

D O I：

10.1063/1.3514575

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We show that using epitaxial strain and chemical pressure in orthorhombic YMnO3 and Co-substituted (YMn0.95Co0.05O3) thin films, a ferromagnetic response can be gradually introduced and tuned. These results, together with the measured anisotropy of the magnetic response, indicate that the unexpected observation of ferromagnetism in orthorhombic o-RMnO3 (R=Y, Ho, Tb, etc.) films originates from strain-driven breaking of the fully compensated magnetic ordering by pushing magnetic moments away from the antiferromagnetic [010] axis. We show that the resulting canting angle and the subsequent ferromagnetic response, gradually increase (up to similar to 1.2 degrees) by compression of the unit cell. We will discuss the relevance of these findings, in connection to the magnetoelectric response of orthorhombic manganites. (C) 2010 American Institute of Physics. [doi:10.1063/1.3514575]

引用

页数：7

共 50 条

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