Continuously tunable magnetic phase transitions in the DyMn1-xFexO3 system

Authors

Fang HongFollow
Zhenxiang Cheng, University of WollongongFollow
Hongyang Zhao, National Institute Materials Science, Japan
Hideo Kimura, National Institute For Materials Science
Xiaolin Wang, University of WollongongFollow

RIS ID

38502

Publication Details

Hong, F., Cheng, Z., Zhao, H., Kimura, H. and Wang, X. (2011). Continuously tunable magnetic phase transitions in the DyMn_1−xFe_xO₃ system. Applied Physics Letters, 99 (9), 092502-1-092502-3.

Abstract

The structure and magnetic properties of perovskite DyMn_1−xFe_xO₃ samples have been studied. Static orbital orderings are expected to exist in samples with x ≤ 0.2 due to strong Jahn-Teller distortion, which become less stable as x increases and probably disappears in samples with x > 0.5. The antiferromagnetic transition temperature increases as x increases. At the composition x > 0.5, spin reorientation starts to appear. Meanwhile, the spin reorientation temperature and the antiferromagnetic Néel temperature gradually separate and widen the temperature range of the magnetic metastable state between these two transitions. The magnetic competition is discussed based on exchange interaction and Dzyaloshinsky-Moriya interaction.