Diffuse phase transition from the superionic to non-superionic state in Cu{sub 1.8}Se single crystal

Diffuse phase transition from the superionic to non-superionic state in Cu{sub 1.8}Se single crystal

The phase transition from the superionic to non-superionic state in a Cu{sub 1.8}Se single crystal is studied by neutron diffraction. In the superionic state, a diffuse halo related to the disordering of the cation subsystem is observed. It is established that the phase transition from the superioni...

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Veröffentlicht in:Crystallography reports 2013-07, Vol.58 (4)
Hauptverfasser: Bikkulova, N. N., Stepanov, Yu. M., Bikkulova, L. V., Kurbangulov, A. R., Kutov, A. Kh, Karagulov, R. F.
Format: Artikel
Sprache:eng
Schlagworte:
CATIONS
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
COPPER SELENIDES
MONOCRYSTALS
NEUTRON DIFFRACTION
PHASE TRANSFORMATIONS
TEMPERATURE RANGE 0065-0273 K
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Zusammenfassung:The phase transition from the superionic to non-superionic state in a Cu{sub 1.8}Se single crystal is studied by neutron diffraction. In the superionic state, a diffuse halo related to the disordering of the cation subsystem is observed. It is established that the phase transition from the superionic to non-superionic state is the diffuse first-order phase transition occurring in the temperature range 250-180 K.
ISSN:1063-7745
1562-689X
DOI:10.1134/S1063774513040068