Published March 23, 2005
| Version v1
Journal article
High pressure structural study of SmNiO3
- 1. European Synchrotron Radiation Facility, ESRF, BP 220, F-38043 Grenoble (France)
- 2. Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, E-28049 Madrid (Spain)
Description
The structural changes of SmNiO3 under high pressure have been studied by means of x-ray powder diffraction with synchrotron radiation in a diamond anvil cell. The orthorhombic perovskite structure transforms into the less distorted R3-barc rhombohedral structure at a pressure of 26 GPa. The volume versus pressure data are well described by a single Murnaghan equation of state, which yields a bulk modulus of 167 GPa. At 2.5 GPa the cell parameter b undergoes a small abrupt contraction that we propose is related to the expected pressure-induced metallization
Availability note (English)
Available online at http://stacks.iop.org/0953-8984/17/S783/cm5_11_006.pdf or at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0953-8984/17/S783/cm5_11_006.pdf; http://www.iop.org/;
- DOI
- 10.1088/0953-8984/17/11/006;
- PII
- S0953-8984(05)92376-X;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 17
- Journal Issue
- 11
- Journal Page Range
- p. S783-S788
- ISSN
- 0953-8984
- CODEN
- JCOMEL
Conference
- Title
- 2. international symposium on the physics of solids under high pressure using nuclear probes
- Dates
- 22-25 Jul 2004
- Place
- Cologne (Germany)
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36035260
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- DIAMONDS; EQUATIONS OF STATE; NIOBATES; PEROVSKITE; PRESSURE DEPENDENCE; PRESSURE RANGE GIGA PA; SAMARIUM COMPOUNDS; SYNCHROTRON RADIATION; TRIGONAL LATTICES; X-RAY DIFFRACTION
- Descriptors DEC
- BREMSSTRAHLUNG; CARBON; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; ELECTROMAGNETIC RADIATION; ELEMENTS; EQUATIONS; MINERALS; NIOBIUM COMPOUNDS; NONMETALS; OXIDE MINERALS; OXYGEN COMPOUNDS; PEROVSKITES; PRESSURE RANGE; RADIATIONS; RARE EARTH COMPOUNDS; REFRACTORY METAL COMPOUNDS; SCATTERING; TRANSITION ELEMENT COMPOUNDS