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EPR study of a ferroelastic phase transition in mixed (Gd, Nd) pentaphosphates

Authors
Journal
Physics Letters A
0375-9601
Publisher
Elsevier
Publication Date
Volume
82
Issue
5
Identifiers
DOI: 10.1016/0375-9601(81)90203-6

Abstract

Abstract Very accurate EPR measurements have been performed below the critical temperature on Gd 3+ impurities in NdP 5O 14. All experiments are interpreted in terms of a three-dimensional rotation of the principal axes of the D-tensor associated to each Gd 3+ site. It is shown that this rotation can be associated to the rotations of the PO 4 tetrahedra appearing in the structure of NdP 5O 14.

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