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Title: Pressure- and Temperature-Dependent X-ray Diffraction Studies of NdCrO3

Abstract

High-temperature and high-pressure X-ray diffraction experiments were conducted on the perovskite NdCrO{sub 3}. High-temperature measurements were used to investigate the temperature dependence of the crystal structure up to 823 K. The magnitude of the octahedral tilting distortion decreased with an increase in temperature. The pressure dependence of the lattice parameters up to 6.4(2) GPa were determined using a diamond anvil cell and monochromatic synchrotron X-ray diffraction. The a lattice parameters exhibit an unusual elongation with pressure, but there was no indication of a pressure-induced phase transition in the pressure range examined and a least squares fit to the volume-pressure data with a second-order Birch-Murnagahan equation of state yielded a large bulk modulus of 338(20) GPa, making it one of the least compressible perovskite oxides.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
930436
Report Number(s):
BNL-81181-2008-JA
Journal ID: ISSN 0925-8388; JALCEU; TRN: US0901387
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Alloys and Compounds; Journal Volume: 433
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 43 PARTICLE ACCELERATORS; CRYSTAL STRUCTURE; DIAMONDS; ELONGATION; LATTICE PARAMETERS; OXIDES; PEROVSKITE; PRESSURE DEPENDENCE; PRESSURE RANGE; SYNCHROTRON RADIATION; TEMPERATURE DEPENDENCE; X-RAY DIFFRACTION; national synchrotron light source

Citation Formats

Lufaso,M., Mugavero, S., Gemmill, W., Lee, Y., Vogt, T., and zur Loye, H. Pressure- and Temperature-Dependent X-ray Diffraction Studies of NdCrO3. United States: N. p., 2007. Web. doi:10.1016/j.jallcom.2006.06.064.
Lufaso,M., Mugavero, S., Gemmill, W., Lee, Y., Vogt, T., & zur Loye, H. Pressure- and Temperature-Dependent X-ray Diffraction Studies of NdCrO3. United States. doi:10.1016/j.jallcom.2006.06.064.
Lufaso,M., Mugavero, S., Gemmill, W., Lee, Y., Vogt, T., and zur Loye, H. Mon . "Pressure- and Temperature-Dependent X-ray Diffraction Studies of NdCrO3". United States. doi:10.1016/j.jallcom.2006.06.064.
@article{osti_930436,
title = {Pressure- and Temperature-Dependent X-ray Diffraction Studies of NdCrO3},
author = {Lufaso,M. and Mugavero, S. and Gemmill, W. and Lee, Y. and Vogt, T. and zur Loye, H.},
abstractNote = {High-temperature and high-pressure X-ray diffraction experiments were conducted on the perovskite NdCrO{sub 3}. High-temperature measurements were used to investigate the temperature dependence of the crystal structure up to 823 K. The magnitude of the octahedral tilting distortion decreased with an increase in temperature. The pressure dependence of the lattice parameters up to 6.4(2) GPa were determined using a diamond anvil cell and monochromatic synchrotron X-ray diffraction. The a lattice parameters exhibit an unusual elongation with pressure, but there was no indication of a pressure-induced phase transition in the pressure range examined and a least squares fit to the volume-pressure data with a second-order Birch-Murnagahan equation of state yielded a large bulk modulus of 338(20) GPa, making it one of the least compressible perovskite oxides.},
doi = {10.1016/j.jallcom.2006.06.064},
journal = {Journal of Alloys and Compounds},
number = ,
volume = 433,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}
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