Report
Strain-driven non-collinear magnetic ordering in orthorhombic epitaxial YMnO3 thin films
| العنوان: | Strain-driven non-collinear magnetic ordering in orthorhombic epitaxial YMnO3 thin films |
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| المؤلفون: | Marti, X., Skumryev, V., Laukhin, V., Bachelet, R., Ferrater, C., García-Cuenca, M. V., Varela, M., Sánchez, F., Fontcuberta, J. |
| المصدر: | J. Appl. Phys. 108, 123917 (2010) |
| سنة النشر: | 2010 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science |
| الوصف: | 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 ~ 1.2\degree) by compression of the unit cell. We will discuss the relevance of these findings, in connection to the magnetoelectric response of orthorhombic manganites. Comment: Text + Figs Accepted in J. Appl. Phys |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1063/1.3514575 |
| URL الوصول: | http://arxiv.org/abs/1010.4118 |
| رقم الانضمام: | edsarx.1010.4118 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1063/1.3514575 |
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