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Pressure-volume behaviour of UP, USb and UTe

Authors
Journal
Physica B+C
0378-4363
Publisher
Elsevier
Publication Date
Volume
144
Issue
1
Identifiers
DOI: 10.1016/0378-4363(86)90293-7

Abstract

Abstract The pressure-volume dependences of UP, USb and UTe have been determined by X-ray powder diffraction in a diamond anvil cell. To obtain reliable variations it is essential to account for the effects of anisotropic stress components. UP maintains its cubic NaCl-type structure at least up to 25 GPa while USb undergoes a cubic NaClCsCl type transformation at 8 GPa. The experimental data have been fitted to a Birch equation of state and the bulk moduli so obtained are compared to theoretical values. The presence of a Kondo effect in UTe is assumed to be responsible for its low bulk modulus.

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