Structure, room temperature spin reorientation and its dynamics in DyFe_0.6Mn_0.4O₃

Authors

Hui Shen, University of Wollongong, Shanghai Institute Of TechnologyFollow
Zhenxiang Cheng, University of WollongongFollow
Fang Hong, University of Wollongong
Jiayue Xu, Shanghai Institute Of Technology
Xiaolin Wang, University of WollongongFollow
Jian Li Wang, University of WollongongFollow
Zheyin Yu, University of WollongongFollow
Yuan Xu Wang, Henan UniversityFollow

RIS ID

114346

Publication Details

Shen, H., Cheng, Z., Hong, F., Xu, J., Wang, X., Wang, J., Yu, Z. & Wang, Y. (2016). Structure, room temperature spin reorientation and its dynamics in DyFe_0.6Mn_0.4O₃. Journal of Alloys and Compounds, 680 226-231.

Abstract

In this work, we report the structure and magnetic properties of DyFe0.6Mn0.4O3, which crystallizes in orthorhombic perovskite structure with a space group of Pnma. For DyFe0.6Mn0.4O3, a spin reorientation transition, from the canted antiferromagnetic (AFM) state to a collinear AFM state, is found to occur around 310 K, which is remarkably higher than the corresponding transition in DyFeO3. This will greatly facilitate its practical electronic applications near room temperature. More importantly, the AC susceptibility reveals that its frequency-dependent spin reorientation temperature decreases with increasing frequency, which is totally opposite to that of a spin glass. The relaxation time of this process is also much larger than conventional spin glass. The possible mechanism of this distinctive process is explored, which is based on the characteristic feature of spin reorientation for DyFe0.6Mn0.4O3.