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Title: Investigation into the evolution of the structure of K{sub 1-x}Li{sub x}Ta{sub 1-y}Nb{sub y}O{sub 3} single crystals under variations in temperature

Abstract

The evolution of the structure of K{sub 1-x}Li{sub x}Ta{sub 1-y}Nb{sub y}O{sub 3} single crystals with x = 0.001, y = 0.026, and 1900 ppm Cu (KLTN277) and with x = 0.0014 and y = 0.024 (KLTN123), which exhibit an extremely high permittivity (up to 4 x 10{sup 5} in the quasi-static regime for the KLTN277 crystal), is investigated in the range from room temperature to 20 K. It is demonstrated that, upon cooling to the lowest temperatures, both crystals retain their cubic structure, but the lattice parameters pass through a minimum at the temperature of the observed anomalies of the dielectric response ({approx}50 K). In the neutron diffraction pattern of the KLTN123 sample, satellites appear in the vicinity of the (hhh) reflections at temperatures below {approx}50 K. These satellites can be associated with the nucleation of the rhombohedral phase.

Authors:
; ; ; ;  [1];  [2];  [3]; ;  [4];  [5]
  1. Russian Academy of Sciences, Ioffe Physicotechnical Institute (Russian Federation)
  2. Joint Institute for Nuclear Research (Russian Federation)
  3. Jozef Stefan Institute (Slovenia)
  4. University of Tennessee (United States)
  5. Polish Academy of Sciences, Institute of Nuclear Physics (Poland)
Publication Date:
OSTI Identifier:
21090919
Resource Type:
Journal Article
Resource Relation:
Journal Name: Crystallography Reports; Journal Volume: 52; Journal Issue: 3; Other Information: DOI: 10.1134/S1063774507030169; 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; COOLING; DIELECTRIC MATERIALS; LATTICE PARAMETERS; LITHIUM COMPOUNDS; MONOCRYSTALS; NEUTRON DIFFRACTION; NIOBIUM COMPOUNDS; NUCLEATION; OXIDES; PERMITTIVITY; POTASSIUM COMPOUNDS; TANTALUM COMPOUNDS; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0273-0400 K

Citation Formats

Borisov, S. A., Vakhrushev, S. B., Koroleva, E. Yu., Naberezhnov, A. A., E-mail: alex.nabereznov@mail.ioffe.ru, Syrnikov, P. P., Simkin, V. G., Kutnjak, Z., Egami, T., Dmowski, W., and Piekarz, P.. Investigation into the evolution of the structure of K{sub 1-x}Li{sub x}Ta{sub 1-y}Nb{sub y}O{sub 3} single crystals under variations in temperature. United States: N. p., 2007. Web. doi:10.1134/S1063774507030169.
Borisov, S. A., Vakhrushev, S. B., Koroleva, E. Yu., Naberezhnov, A. A., E-mail: alex.nabereznov@mail.ioffe.ru, Syrnikov, P. P., Simkin, V. G., Kutnjak, Z., Egami, T., Dmowski, W., & Piekarz, P.. Investigation into the evolution of the structure of K{sub 1-x}Li{sub x}Ta{sub 1-y}Nb{sub y}O{sub 3} single crystals under variations in temperature. United States. doi:10.1134/S1063774507030169.
Borisov, S. A., Vakhrushev, S. B., Koroleva, E. Yu., Naberezhnov, A. A., E-mail: alex.nabereznov@mail.ioffe.ru, Syrnikov, P. P., Simkin, V. G., Kutnjak, Z., Egami, T., Dmowski, W., and Piekarz, P.. Tue . "Investigation into the evolution of the structure of K{sub 1-x}Li{sub x}Ta{sub 1-y}Nb{sub y}O{sub 3} single crystals under variations in temperature". United States. doi:10.1134/S1063774507030169.
@article{osti_21090919,
title = {Investigation into the evolution of the structure of K{sub 1-x}Li{sub x}Ta{sub 1-y}Nb{sub y}O{sub 3} single crystals under variations in temperature},
author = {Borisov, S. A. and Vakhrushev, S. B. and Koroleva, E. Yu. and Naberezhnov, A. A., E-mail: alex.nabereznov@mail.ioffe.ru and Syrnikov, P. P. and Simkin, V. G. and Kutnjak, Z. and Egami, T. and Dmowski, W. and Piekarz, P.},
abstractNote = {The evolution of the structure of K{sub 1-x}Li{sub x}Ta{sub 1-y}Nb{sub y}O{sub 3} single crystals with x = 0.001, y = 0.026, and 1900 ppm Cu (KLTN277) and with x = 0.0014 and y = 0.024 (KLTN123), which exhibit an extremely high permittivity (up to 4 x 10{sup 5} in the quasi-static regime for the KLTN277 crystal), is investigated in the range from room temperature to 20 K. It is demonstrated that, upon cooling to the lowest temperatures, both crystals retain their cubic structure, but the lattice parameters pass through a minimum at the temperature of the observed anomalies of the dielectric response ({approx}50 K). In the neutron diffraction pattern of the KLTN123 sample, satellites appear in the vicinity of the (hhh) reflections at temperatures below {approx}50 K. These satellites can be associated with the nucleation of the rhombohedral phase.},
doi = {10.1134/S1063774507030169},
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}
}