Published 2005 | Version v1
Book Metadata-only

High pressure phase transformation in some AnS (An = Th, U, Np, Pu) compounds

Creators

  • 1. Condensed Matter Physics Laboratory, Department of Physics, University of Bhopal, Bhopal (India)

Description

Pressure induced structural phase transition at high pressure in AnS (An = Th, U, Np, Pu) compounds has been studied theoretically by using an interionic potential theory with modified ionic charge introduced to include the Coulomb screening effect due to localized f-electrons. The present theoretical investigation carried out up to 120 GPa reveals that these compounds undergo NaCl to CsCl phase transition at 100, 81, 75 and 105 GPa for ThS, US, NpS and PuS, respectively. The bulk modulus and inter-atomic distances calculated from the present theory agree well with X-ray scattering data. (author)

Part of:
Proceedings of the DAE solid state physics symposium. V. 46

Additional details

Publishing Information

Publisher
Allied Publishers Private Ltd.
Imprint Place
New Delhi (India)
ISBN
81-7764-652-4
Imprint Title
Proceedings of the DAE solid state physics symposium. V. 46
Imprint Pagination
1053 p.
Journal Page Range
p. 79-80

Conference

Title
46. DAE solid state physics symposium
Dates
26-30 Dec 2003
Place
Gwalior (India)

INIS

Country of Publication
India
Country of Input or Organization
India
INIS RN
37018921
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CESIUM CHLORIDES; CRYSTAL-PHASE TRANSFORMATIONS; FREE ENTHALPY; INTERMETALLIC COMPOUNDS; NEPTUNIUM; PLUTONIUM; PLUTONIUM SULFIDES; THORIUM SULFIDES; URANIUM SULFIDES; X-RAY DIFFRACTION
Descriptors DEC
ACTINIDE COMPOUNDS; ACTINIDES; ALKALI METAL COMPOUNDS; ALLOYS; CESIUM COMPOUNDS; CHALCOGENIDES; CHLORIDES; CHLORINE COMPOUNDS; COHERENT SCATTERING; DIFFRACTION; ELEMENTS; ENERGY; HALIDES; HALOGEN COMPOUNDS; METALS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; PLUTONIUM COMPOUNDS; SCATTERING; SULFIDES; SULFUR COMPOUNDS; THERMODYNAMIC PROPERTIES; THORIUM COMPOUNDS; TRANSURANIUM COMPOUNDS; TRANSURANIUM ELEMENTS; URANIUM COMPOUNDS

Optional Information

Notes
6 refs., 2 figs., 2 tabs.