DISPLACIVE COMPONENTS OF THE LOW-TEMPERATURE PHASE TRANSITIONS IN LAWSONITE

dc.contributor.author	Meyer H.W.
dc.contributor.author	Carpenter M.A.
dc.contributor.author	Redfern S.A.T.
dc.contributor.author	Dove M.T.
dc.contributor.author	Marion S.
dc.contributor.author	Sondergeld P.
dc.contributor.author	Knight K.S.
dc.date.accessioned	2021-03-05T08:55:39Z
dc.date.available	2021-03-05T08:55:39Z
dc.date.issued	2001
dc.identifier	https://elibrary.ru/item.asp?id=27958359
dc.identifier.citation	American Mineralogist, 2001, 86, 4, 566-577
dc.identifier.issn	0003-004X
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/26370
dc.description.abstract	The phase transitions in deuterated lawsonite were investigated with high-resolution, time-of-flight neutron diffraction between 2 and 500 K. From the analysis of spontaneous strain data, the thermodynamics of the phase transition at 273 K are not changed by the deuteration process. Shifts in atomic positions with temperature indicate continuous changes for a framework oxygen and for one of the deuterium atoms, whereas for the other deuterium atom, a more discontinuous behavior was observed in the average structure. Comparison of O···D and O···O bond lengths with IR data from a non-deuterated lawsonite permits a detailed analysis of assignments of O-H stretching modes.
dc.title	DISPLACIVE COMPONENTS OF THE LOW-TEMPERATURE PHASE TRANSITIONS IN LAWSONITE
dc.type	Статья

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