Optical Evidence for the Dynamic Jahn-Teller Effect in Nd0.7Sr0.3MnO3.
Optical Evidence for the Dynamic Jahn-Teller Effect in Nd0.7Sr0.3MnO3.
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DOI：
10.1103/physrevlett.77.2081
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发表时间：
1996-09
影响因子：
8.6
通讯作者：
Kaplan;Quijada;Drew;Tanner;Xiong;Ramesh;Kwon;Venkatesan
中科院分区：
文献类型：
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作者：
Kaplan;Quijada;Drew;Tanner;Xiong;Ramesh;Kwon;Venkatesan
在温度低至15k、磁场高达8.9 t的宽光谱范围内对薄膜进行了研究。当材料冷却到铁磁相时，或在相边界附近磁场增加时，光谱权重从高能量到低能的大量转移发生。发现光学数据与包含双交换相互作用和Mn上的动态Jahn-Teller效应的模型一致
thin films have been studied over a broad spectral range,at temperatures down to 15 K and magnetic fields up to 8.9 T. A large transfer of spectral weightfrom high energy to low energy occurs as this material is cooled into the ferromagnetic phase, or asthe magnetic field is increased near the phase boundary. The optical data are found to be consistentwith models that include both the double-exchange interaction and the dynamic Jahn-Teller effect onthe Mn