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}
}