Jahn-Teller induced elastic constant changes in TmPO4

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, , Citation R T Harley and D I Manning 1978 J. Phys. C: Solid State Phys. 11 L633 DOI 10.1088/0022-3719/11/15/005

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1 Clarendon Lab., Oxford Univ., Oxford, UK

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0022-3719/11/15/L633

Abstract

Elastic constants C66 and C44 have been measured for TmPO4 from 4.2 to 300K. C66 shows evidence of strong Jahn-Teller coupling of Tm3+ electronic states to lattice strain but there is no cooperative phase transition. Theory previously developed to describe TbVO4 gives a very good description of the data for TmPO4.

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