Journal Article

PreJuSER-15284

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Phase Behaviour of CoC12-MnC12 Mixed Crystals

Davaasambuu, J. ; Güthoff, F. ; Hoelzel, M. ; Senyshyn, A. ; Radulescu, A.FZJ* ; Eckold, G.

2011
Oldenbourg München

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Please use a persistent id in citations: http://hdl.handle.net/2128/18345  doi:10.1524/zpch.2011.0115

Abstract: Thermal properties of CoCl2, MnCl2 and their mixed crystals are investigated by means of temperature dependent neutron powder diffraction and time-resolved small angle neutron scattering. The coefficients of thermal expansion of these crystals have been determined as a function of temperature. The temperature-induced structural variations can be explained by distortions of CoCl5/MnCl6 octahedra and changes in Co/Mn-Cl bond lengths. CoCl2 and MnCl2 form homogeneous solid solutions in the entire temperature range between the solidus and 50 K. There is no indication of any miscibility gap as predicted from thermodynamic calculations.

Keyword(s): Basic research (1st) ; Others (1st) ; Condensed Matter Physics (2nd) ; J ; Mixed Crystal (auto) ; Demixing (auto) ; Phase Diagram (auto) ; Neutron Diffraction (auto) ; Neutron Small Angle Scattering (auto)

Note: This work was supported by the DFG under grant EC 153/3-1.

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Contributing Institute(s):

1. Neutronenstreuung (ICS-1)
2. JCNS-FRM-II (JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II)
3. Neutronenstreuung (JCNS-1)

Research Program(s):

1. BioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung (P45)
2. Großgeräte für die Forschung mit Photonen, Neutronen und Ionen (PNI) (P55)

Experiment(s):

1. KWS-2: Small angle scattering diffractometer (NL3ao)
2. SPODI: High resolution powder diffractometer (SR8a)

Appears in the scientific report 2011

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Database coverage:
; JCR ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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