Modulated crystal structures of phases VII and V in (NH{sub 4}){sub 3}H(SO{sub 4}){sub 2}. Neutron Laue diffraction

Modulated crystal structures of phases VII and V in (NH{sub 4}){sub 3}H(SO{sub 4}){sub 2}. Neutron Laue diffraction

A study of the crystal structure of the phases VII and V of (NH{sub 4}){sub 3}H(SO{sub 4}){sub 2} by mean of neutron Laue diffraction was carried out at temperatures from 5 to 300 K. It is found that the crystal structures of phases VII and V are incommensurately modulated with different periods, an...

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Veröffentlicht in:Crystallography reports 2013-01, Vol.58 (1)
Hauptverfasser: McIntyre, G. J., Smirnov, L. S., Baranov, A. I., Dolbinina, V. V., Frontasyeva, M. V., Pavlov, S. S., Pankratova, Yu. S.
Format: Artikel
Sprache:eng
Schlagworte:
CRYSTAL STRUCTURE
DIFFRACTION
MATERIALS SCIENCE
NEUTRONS
PHASE TRANSFORMATIONS
SULFATES
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Zusammenfassung:A study of the crystal structure of the phases VII and V of (NH{sub 4}){sub 3}H(SO{sub 4}){sub 2} by mean of neutron Laue diffraction was carried out at temperatures from 5 to 300 K. It is found that the crystal structures of phases VII and V are incommensurately modulated with different periods, and that the phase transition from phase VII to phase V is of first order.
ISSN:1063-7745
1562-689X
DOI:10.1134/S1063774513010239