Mode softening and the elastic constants of CeSn<sub>3</sub>期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Mode softening and the elastic constants of CeSn₃

Authors:	Alan S. Edelstein Sendip K. Sengupta Richard L. Carlin O.D. McMasters

Affiliation:	Physics Dept., University of Illinois at Chicago, Chicago, IL 60680, USA;Chemistry Dept., University of Illinois at Chicago, Chicago, IL 60680 USA;Ames Laboratory, USDOD Iowa State University, Ames, Iowa 50010, USA

Abstract:	The transverse and longitudinal acoustic velocities have been measured in the [100] and [111] directions of CeSn₃ as a function of temperature for 4.2 ≤ T ≤ 290 K. The elastic constants c₄₄ and $12 (c_{11} ?c_{12})$ increase smoothly with decreasing temperature and become temperature independent below 10 K but the bulk modulus has a 2% decrease at 135 K which is indicative of an electronically driven mode softening.

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