High Pressure - High Temperature Diffraction Study of MnTe Using Synchrotron Radiation

• Authors: W. Paszkowicz , E. Dynowska , T. Peun
• Languages of publication: EN

Abstracts

EN

High pressure - high temperature experiments for MnTe of NiAs type were performed using a synchrotron radiation as X-ray source and a cubic anvil X-ray diffraction press to produce nonambient sample environment. In the investigated range of pressure (0-67.5 kbar) on uploading and with following temperature rise from 296 to 1273 K (at 67.5 kbar), the structure type of MnTe is conserved. An earlier reported nonlinear behaviour of lattice-parameter c_{0} is not found in the present study. Possible reasons of this discrepancy are discussed. The value of bulk modulus and its pressure derivative were calculated from the pressure-volume dependence by fitting the Birch-Murnaghan equation.

Keywords

EN

64.30.+t; 62.50.+p; 65.70.+y

• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 91
• Issue: 5
• Pages: 939-944

Dates

published

1997-05

Contributors

author

W. Paszkowicz

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

author

E. Dynowska

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

author

T. Peun

• GeoForschungsZentrum Potsdam, Telegrafenberg A17, 14473 Potsdam, Germany