Temperature Dependence Of Spin Reorientation And Crystal-Field Transitions In Tmfeo3 Studied With Terahertz Transient

Kailin Zhang,Kai Xu,Xiumei Liu,Zeyu Zhang,Zuanming Jin,Xian Lin,Bo Li,Shixun Cao,Guohong Ma

international conference on infrared, millimeter, and terahertz waves（2016）

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Abstract

By employing THz time-domain spectroscopy, far infrared optical properties of TmFeO3 single crystal are investigated schematically in temperature range from 5 to 300 K. The temperature dependence of resonances due to iron ions and Tm ions absorption due to crystal field are clarified. The experimental results demonstrate that the temperature induced spin reorientation transition (SRT) as well as crystal field induced ground multiplets splitting in Tm3+ occur independently. In addition, the temperature dependence of beating due to antiferromagnetic resonance was observed and resolved at low temperature.

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Key words

temperature dependence,crystal field transitions,terahertz transient,terahertz time domain spectroscopy,far infrared optical properties,ions absorption,spin reorientation transition,temperature 5 K to 300 K,TmFeO3

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