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Abstract

We present new results of high-pressure X-ray diffraction experiments on UMn(2), showing that the cubic Laves phase distorts at pressures above about 3 Gpa at ambient temperature. The analysis of the associated splitting of the diffraction lines reveals that this distortion is othorhombic and qualitatively the same as the already known distortion observed at low temperatures.

In contrast to earlier reported data, the volume compression curve shows a normal behaviour up to the highest pressure attained of about 30 Gpa at ambient temperature. The analysis of the associated splitting of the diffraction lines revea that this distortion is orthorhombic and qualitatively the same as the already known distortion observed at low temperatures.

In contrast to earlier reported data, the volume compression curve shows a normal behaviour up to the highest pressure attained of about 30 Gpa. pa.

Additional information

Authors: LINBAUM A, ITU KARLSRUHE, KARLSRUHE (DE);HEATHMAN S, ITU KARLSRUHE, KARLSRUHE (DE)
Bibliographic Reference: Article: Journal of Alloys and Compounds, (1999)
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