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Title: Inelastic and Quasielastic Neutron Scattering in PbMg1/3Nb2/3O3 Above the Burns Temperature

Abstract

We present here the results of the study of the true paraelectric phase of PMN via neutron inelastic and quasielastic scattering. Inelastic data for two different Brillouin Zones were treated simultaneously in terms of the 2-mode approach for the lowest TO mode. We have confirmed that 2-mode description allows removing the contradictions between the temperature dependences of the soft-mode frequency and the dielectric susceptibility existing in the single mode model. The diffuse scattering was mapped in three Brillouin zones and substantial anisotropy of the 2-d intensity distribution was found that was not reported before. Treatment of data in terms of Huang scattering produced satisfactory description of the experimental data. It is shown that broad satellite peaks close to the main Bragg reflections in our case can be described in terms of instrumental resolution.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
DOE - OFFICE OF SCIENCE
OSTI Identifier:
1020921
Report Number(s):
BNL-94905-2011-JA
Journal ID: ISSN 0015-0193; R&D Project: PO-010; KC0202010; TRN: US201116%%946
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Journal Name:
Ferroelectrics
Additional Journal Information:
Journal Volume: 400; Journal Issue: 1; Journal ID: ISSN 0015-0193
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANISOTROPY; BRAGG REFLECTION; BRILLOUIN ZONES; DIELECTRIC MATERIALS; DIFFUSE SCATTERING; DISTRIBUTION; NEUTRONS; RESOLUTION; SATELLITES; SCATTERING; TEMPERATURE DEPENDENCE

Citation Formats

Burkovsky, R, Shapiro, S, Vakhrushev, S B, Ivanov, A, Hirota, K, and Matsuura, M. Inelastic and Quasielastic Neutron Scattering in PbMg1/3Nb2/3O3 Above the Burns Temperature. United States: N. p., 2010. Web. doi:10.1080/00150193.2010.505858.
Burkovsky, R, Shapiro, S, Vakhrushev, S B, Ivanov, A, Hirota, K, & Matsuura, M. Inelastic and Quasielastic Neutron Scattering in PbMg1/3Nb2/3O3 Above the Burns Temperature. United States. https://doi.org/10.1080/00150193.2010.505858
Burkovsky, R, Shapiro, S, Vakhrushev, S B, Ivanov, A, Hirota, K, and Matsuura, M. 2010. "Inelastic and Quasielastic Neutron Scattering in PbMg1/3Nb2/3O3 Above the Burns Temperature". United States. https://doi.org/10.1080/00150193.2010.505858.
@article{osti_1020921,
title = {Inelastic and Quasielastic Neutron Scattering in PbMg1/3Nb2/3O3 Above the Burns Temperature},
author = {Burkovsky, R and Shapiro, S and Vakhrushev, S B and Ivanov, A and Hirota, K and Matsuura, M},
abstractNote = {We present here the results of the study of the true paraelectric phase of PMN via neutron inelastic and quasielastic scattering. Inelastic data for two different Brillouin Zones were treated simultaneously in terms of the 2-mode approach for the lowest TO mode. We have confirmed that 2-mode description allows removing the contradictions between the temperature dependences of the soft-mode frequency and the dielectric susceptibility existing in the single mode model. The diffuse scattering was mapped in three Brillouin zones and substantial anisotropy of the 2-d intensity distribution was found that was not reported before. Treatment of data in terms of Huang scattering produced satisfactory description of the experimental data. It is shown that broad satellite peaks close to the main Bragg reflections in our case can be described in terms of instrumental resolution.},
doi = {10.1080/00150193.2010.505858},
url = {https://www.osti.gov/biblio/1020921}, journal = {Ferroelectrics},
issn = {0015-0193},
number = 1,
volume = 400,
place = {United States},
year = {Wed Dec 01 00:00:00 EST 2010},
month = {Wed Dec 01 00:00:00 EST 2010}
}