Spin reorientation transition in Sm0.5Tb0.5FeO3 orthoferrite single crystal | Zendy

Xiangyang Zhao | Zendy; Kailin Zhang | Zendy; Xiumei Liu | Zendy; Bo Wang | Zendy; Kai Xu | Zendy; Shixun Cao | Zendy; Anhua Wu | Zendy; Liangbi Su | Zendy; Guohong Ma | Zendy

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Spin reorientation transition in Sm0.5Tb0.5FeO3 orthoferrite single crystal

Author(s) -

Xiangyang Zhao,

Kailin Zhang,

Xiumei Liu,

Bo Wang,

Kai Xu,

Shixun Cao,

Anhua Wu,

Liangbi Su,

Guohong Ma

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4939697

Subject(s) - orthoferrite , terahertz radiation , materials science , atmospheric temperature range , spectroscopy , condensed matter physics , single crystal , spin (aerodynamics) , crystal (programming language) , ion , nuclear magnetic resonance , analytical chemistry (journal) , optoelectronics , chemistry , magnetization , physics , magnetic field , organic chemistry , quantum mechanics , meteorology , computer science , thermodynamics , programming language , chromatography

Single crystal of Sm0.5Tb0.5FeO3 was grown by an optical floating zone method. The spin reorientation transition behavior (Γ2 → Γ24 → Γ4) is observed in the temperature range from 150 to 250 K. The dynamics of spin reorientation transition is studied by terahertz time-domain spectroscopy (THz-TDS). FM mode was only discovered when temperature is below 55 K. And the FM mode resonant frequency increases from 0.216 THz to 0.268 THz with temperature deceasing from 55 K to 39 K. The AFM mode resonant frequency is fixed at 0.542 THz except in the very low temperature range. Our results demonstrate that THz-TDS is an effective means to study the dynamical iron ions SRT in RFeO3

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