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Title: Study of the structure of PyHReO{sub 4} under high pressure

Abstract

The structure of deuterated pyridinium perrhenate (d{sub 5}PyH)ReO{sub 4} (C{sub 5}D{sub 5}NHReO{sub 4}) is studied by X-ray diffraction at room temperature and pressures up to 3.5 GPa and by neutron diffraction in the temperature range 10-293 K and at pressures up to 2.0 GPa. Under normal conditions, this compound belongs to the orthorhombic space group Cmc2{sub 1} (ferroelectric phase II). At room temperature and pressures above P > 0.7 GPa, a transition to an orthorhombic phase (paraelectric phase II) is observed. This paraelectric phase is described by the space group Cmcm. At a pressure as high as P = 2.0 GPa, phase I remains stable at temperatures down to 10 K. This fact indicates that the high pressure suppresses the ferroelectric state in deuterated pyridinium perrhenate (d{sub 5}PyH)ReO{sub 4}.

Authors:
;  [1]; ;  [2];  [3];  [2];  [1];  [4]
  1. Joint Institute for Nuclear Research (Russian Federation)
  2. Mickiewicz University (Poland)
  3. Russian Research Centre 'Kurchatov Institute' (Russian Federation)
  4. HASYLAB am DESY (Germany)
Publication Date:
OSTI Identifier:
21090918
Resource Type:
Journal Article
Resource Relation:
Journal Name: Crystallography Reports; Journal Volume: 52; Journal Issue: 3; Other Information: DOI: 10.1134/S1063774507030170; Copyright (c) 2007 Nauka/Interperiodica; Article Copyright (c) 2007 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; FERROELECTRIC MATERIALS; NEUTRON DIFFRACTION; ORTHORHOMBIC LATTICES; PERRHENATES; PRESSURE RANGE GIGA PA; PYRIDINIUM COMPOUNDS; SPACE GROUPS; TEMPERATURE RANGE 0273-0400 K; X-RAY DIFFRACTION

Citation Formats

Kichanov, S. E., E-mail: ekich@nf.jinr.ru, Kozlenko, D. P., Wasicki, J. W., Czarnecki, P., Glazkov, V. P., Nawrocik, W., Savenko, B. N., and Lathe, C. Study of the structure of PyHReO{sub 4} under high pressure. United States: N. p., 2007. Web. doi:10.1134/S1063774507030170.
Kichanov, S. E., E-mail: ekich@nf.jinr.ru, Kozlenko, D. P., Wasicki, J. W., Czarnecki, P., Glazkov, V. P., Nawrocik, W., Savenko, B. N., & Lathe, C. Study of the structure of PyHReO{sub 4} under high pressure. United States. doi:10.1134/S1063774507030170.
Kichanov, S. E., E-mail: ekich@nf.jinr.ru, Kozlenko, D. P., Wasicki, J. W., Czarnecki, P., Glazkov, V. P., Nawrocik, W., Savenko, B. N., and Lathe, C. Tue . "Study of the structure of PyHReO{sub 4} under high pressure". United States. doi:10.1134/S1063774507030170.
@article{osti_21090918,
title = {Study of the structure of PyHReO{sub 4} under high pressure},
author = {Kichanov, S. E., E-mail: ekich@nf.jinr.ru and Kozlenko, D. P. and Wasicki, J. W. and Czarnecki, P. and Glazkov, V. P. and Nawrocik, W. and Savenko, B. N. and Lathe, C.},
abstractNote = {The structure of deuterated pyridinium perrhenate (d{sub 5}PyH)ReO{sub 4} (C{sub 5}D{sub 5}NHReO{sub 4}) is studied by X-ray diffraction at room temperature and pressures up to 3.5 GPa and by neutron diffraction in the temperature range 10-293 K and at pressures up to 2.0 GPa. Under normal conditions, this compound belongs to the orthorhombic space group Cmc2{sub 1} (ferroelectric phase II). At room temperature and pressures above P > 0.7 GPa, a transition to an orthorhombic phase (paraelectric phase II) is observed. This paraelectric phase is described by the space group Cmcm. At a pressure as high as P = 2.0 GPa, phase I remains stable at temperatures down to 10 K. This fact indicates that the high pressure suppresses the ferroelectric state in deuterated pyridinium perrhenate (d{sub 5}PyH)ReO{sub 4}.},
doi = {10.1134/S1063774507030170},
journal = {Crystallography Reports},
number = 3,
volume = 52,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}