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首页> 外文期刊>Physica, B. Condensed Matter >Ultrasonic dispersion due to off-center rattling in NdOs4Sb12
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Ultrasonic dispersion due to off-center rattling in NdOs4Sb12

机译:NdOs4Sb12中偏心嘎嘎声引起的超声分散

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Ultrasonic investigation for the single crystals of ferromagnetic filled skutterudite compound NdOs4Sb12 was performed. A marked frequency dependence of the ultrasonic dispersion has been observed in a longitudinal elastic constant C-11 at temperature centered around 45 K; however, no dispersion was measured in the transverse elastic constant C-44. Such a clear mode difference in the ultrasonic dispersion, which has been found in PrOs4Sb12, strongly suggests that Nd ion in NdOs4Sb12 bears thermally activated off-center rattling effect. (C) 2007 Elsevier B.V. All rights reserved.
机译:对铁磁性填充方钴矿化合物NdOs4Sb12的单晶进行了超声波研究。在以45 K为中心的纵向弹性常数C-11中,观察到了超声分散的明显频率依赖性。但是,在横向弹性常数C-44中没有测量到分散。在PrOs4Sb12中发现的这种明显的超声分散模式差异强烈表明NdOs4Sb12中的Nd离子具有热激活的偏心咔嗒声。 (C)2007 Elsevier B.V.保留所有权利。

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