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2005 | 108 | 3 | 513-520
Article title

Effect of Uniaxial Pressure on the Ferroelectric Phase Transition in Pb_5Ge_3O_{11}:Ba Crystals

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EN
Abstracts
EN
The effect of uniaxial pressure up to 1 kbar applied perpendicular and parallel to c-axis, on the Curie temperature and electric permittivityε_c of Ba-doped Pb_5Ge_3O_{11} single crystals was investigated. The Curie temperature decreases with uniaxial pressure and the coefficientγ_i (γ_i ≡ δ T_{c}/δ X_i) is determined as -7 and -11 K kbar^{-1} for the b- and c-axes, respectively. It was found that uniaxial pressure increases the phase transition diffuseness and the tricritical point cannot be achieved for this pyroelectric and ferroelectric single crystal.
Keywords
EN
Publisher

Year
Volume
108
Issue
3
Pages
513-520
Physical description
Dates
published
2005-09
received
2005-03-29
Contributors
author
  • Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
author
  • Institute of Physics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
author
  • Department of Physics, University of Bath, Claverton Down, Bath, Bath, BA2 7AY England
author
  • Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv108n309kz
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