A multi-temperature X-ray diffraction study was performed on the colossal magnetoresistive thiospinel FeCr2S4 to find out if structural phase transitions are associated with the magnetic transitions of the two Fe and Cr sublattices. The temperature dependence of the cell parameters was carefully screened, and the crystal structure was determined at four different temperatures. The present X-ray diffraction experiment, the first performed on a single crystal, confirms that bulk FeCr2S4 is not subject to structural phase transformations in the temperature range 293-23 K. The occurrence of the forbidden (0 0 2) reflection and the non-stoichiometric sample composition are discussed. (c) 2005 Elsevier B.V. All rights reserved.

Looking for structural phase transitions in the colossal magnetoresistive thiospinel FeCr2S4 by a multi-temperature single-crystal X-ray diffraction study / L. Lo Presti, D. Invernizzi, R. Soave, R. Destro. - In: CHEMICAL PHYSICS LETTERS. - ISSN 0009-2614. - 416:1-3(2005), pp. 28-32.

Looking for structural phase transitions in the colossal magnetoresistive thiospinel FeCr2S4 by a multi-temperature single-crystal X-ray diffraction study

L. Lo Presti
Primo
;
D. Invernizzi
Secondo
;
R. Destro
Ultimo
2005

Abstract

A multi-temperature X-ray diffraction study was performed on the colossal magnetoresistive thiospinel FeCr2S4 to find out if structural phase transitions are associated with the magnetic transitions of the two Fe and Cr sublattices. The temperature dependence of the cell parameters was carefully screened, and the crystal structure was determined at four different temperatures. The present X-ray diffraction experiment, the first performed on a single crystal, confirms that bulk FeCr2S4 is not subject to structural phase transformations in the temperature range 293-23 K. The occurrence of the forbidden (0 0 2) reflection and the non-stoichiometric sample composition are discussed. (c) 2005 Elsevier B.V. All rights reserved.
structural phase transitions; single-crystal X-ray diffraction; thiospinel FeCr2S4; colossal magnetoresistence
Settore CHIM/02 - Chimica Fisica
2005
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/16403
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