Dipole Glassy State in Layered Mixed Crystals of Cu(In,Cr)P2(S,Se)6System
Autor: | S. F. Motrja, Yu. M. Vysochanskii, M. M. Maior, I. P. Pritz, M. I. Gurzan |
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Rok vydání: | 2008 |
Předmět: | |
Zdroj: | Ferroelectrics. 376:9-16 |
ISSN: | 1563-5112 0015-0193 |
Popis: | Layered Cu(Cr x In 1 − x )P 2 S 6 mixed crystals have been studied by measuring the complex dielectric permittivity along polar axis in the frequency range 100 Hz – 16 MHz. It has been found that for 0.8 ≤ x ≤ 1.0 the line of the phase transitions into the antiferroelectric phase on the phase diagram occurs. On other side of the phase diagram at 0.2 ≤ x ≤ 0.3 the long range ferroelectric order coexisting with relaxation glassy-like behavior is observed. In the intermediate concentration range for 0.4 ≤ x ≤ 0.6 the state can be identified dipole glassy-like state. The dipole glass also coexists with the ferroelectric state in CuInP 2 (Se x S 1 − x ) 6 mixed crystals when x → 0. With an increase in selenium content the dipole glass transforms into a ferroelectric state via relaxor ordering regime. |
Databáze: | OpenAIRE |
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