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Compressibility of cubic vanadium mononitride

Dzivenko, D. and Zerr, A. and Guignot, N. and Mezouar, M. and Riedel, R. (2011):
Compressibility of cubic vanadium mononitride.
In: EPL (Europhysics Letters), IOP Publishing, pp. 66001-p1-66001-p4, 92, (6), ISSN 0295-5075,
[Online-Edition: http://dx.doi.org/10.1209/0295-5075/92/66001],
[Article]

Abstract

Abstract – The equation of state of vanadium mononitride with a cubic rock-salt structure, δ-VN, was measured on quasi-hydrostatic compression in a diamond anvil cell to 29GPa. From these data the bulk modulus of δ-VN, B0 = 300(6)GPa, and its first pressure derivative, B � 0 =3.6(6), were obtained. A comparison of the available data on B0 for δ-TiN, δ-ZrN, δ-HfN and δ-VN, extended by the present result, indicates a systematic agreement between the experimental B0-values from compression measurements and theoretical predictions based on the generalized gradient approximation (GGA) method. An increase of B0 with decreasing zero-pressure specific volume, earlier suggested for the group-4 and -5 transition metal mononitrides, is not confirmed. Copyright c� EPLA, 2010

Item Type: Article
Erschienen: 2011
Creators: Dzivenko, D. and Zerr, A. and Guignot, N. and Mezouar, M. and Riedel, R.
Title: Compressibility of cubic vanadium mononitride
Language: English
Abstract:

Abstract – The equation of state of vanadium mononitride with a cubic rock-salt structure, δ-VN, was measured on quasi-hydrostatic compression in a diamond anvil cell to 29GPa. From these data the bulk modulus of δ-VN, B0 = 300(6)GPa, and its first pressure derivative, B � 0 =3.6(6), were obtained. A comparison of the available data on B0 for δ-TiN, δ-ZrN, δ-HfN and δ-VN, extended by the present result, indicates a systematic agreement between the experimental B0-values from compression measurements and theoretical predictions based on the generalized gradient approximation (GGA) method. An increase of B0 with decreasing zero-pressure specific volume, earlier suggested for the group-4 and -5 transition metal mononitrides, is not confirmed. Copyright c� EPLA, 2010

Journal or Publication Title: EPL (Europhysics Letters)
Volume: 92
Number: 6
Publisher: IOP Publishing
Uncontrolled Keywords: Condensed matter: structural, mechanical & thermal
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 05 Apr 2012 08:43
Official URL: http://dx.doi.org/10.1209/0295-5075/92/66001
Identification Number: doi:10.1209/0295-5075/92/66001
Funders: The financial support of the European Synchrotron Radiation Facility (project HS-2845) is gratefully acknowledged., The financial support of the European Synchrotron Radiation Facility (project HS-2845) is gratefully acknowledged.
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