A low-temperature electron diffraction study of structural disorder and its relationship to the Kondo effect in ThAsSe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

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A low-temperature electron diffraction study of structural disorder and its relationship to the Kondo effect in ThAsSe

Authors:	RL Withers R Vincent

Institution:	^a Research School of Chemistry, Australian National University, Canberra ACT 0200, Australia ^b H.H.Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, UK ^c Institute for Semiconductor Physics and Optics, Technical University Braunschweig, D-38106 Braunschweig, Germany

Abstract:	A low-temperature electron diffraction study has been carried out on ThAsSe to search for evidence of structural disorder associated with the low-temperature non-magnetic Kondo effect. A highly structured and extremely complex characteristic diffuse intensity distribution has been observed at low temperature and interpreted in terms of a gradual charge density wave type phase transition upon lowering of temperature involving disordered As-As dimerization within (001) planes. Plausible models of the proposed As-As dimerization have been obtained using a group theoretical approach.

Keywords:	Kondo effect As dimerization Charge density wave Transmission electron microscopy Incommensurately modulated
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