Synthesis, crystal structure, and magnetic properties of MnCr2S4 spinel
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Electricitate. Magnetism. Electromagnetism (404)
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PRODAN, Lilian. Synthesis, crystal structure, and magnetic properties of MnCr2S4 spinel. In: Moldavian Journal of the Physical Sciences, 2016, nr. 3-4(15), pp. 125-129. ISSN 1810-648X.
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Moldavian Journal of the Physical Sciences
Numărul 3-4(15) / 2016 / ISSN 1810-648X /ISSNe 2537-6365

Synthesis, crystal structure, and magnetic properties of MnCr2S4 spinel
CZU: 537.622

Pag. 125-129

Prodan Lilian
 
Institute of Applied Physics, Academy of Sciences of Moldova
 
Disponibil în IBN: 25 ianuarie 2017


Rezumat

A detailed study of the preparation of poly and single crystals of the MnCr2S4 ternary spinel and their structural and magnetic characterisation are reported. X-ray diffraction data for the polycrystals show a nearly stoichiometric chemical composition and a normal spinel structure of the main phase with an additional reflection (1%) of the minor phase MnS. From the temperature dependence of susceptibility measured in field-cooled (FC) and zero-field cooled (ZFC) sequences, the Curie temperature of TC = 65 K is determined; it coresponds to a transition from the paramagnetic to ferrimagnetically ordered state. The second magnetic transition is detected at TYK = 5 K; it coresponds to a transition from a coliniar to triangular spin configuration of the Yafet–Kittel type.