High-pressure synthesis, spin-glass behaviour, and magnetocaloric effects in FexTi2S4 heideite sulphides

Author:

Silva Jr R. S.12ORCID,Gainza J.1ORCID,Rodrigues J. E.13ORCID,Martínez L.1ORCID,Céspedes E.1ORCID,Nemes N. M.14ORCID,Martínez J. L.1ORCID,Alonso J. A.1ORCID

Affiliation:

1. Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, E-28049 Madrid, Spain

2. Department of Physics, Federal University of Sergipe, 49100-000, São Cristóvão, SE, Brazil

3. European Synchrotron Radiation Facility (ESRF), 71 Avenue des Martyrs, 38000 Grenoble, France

4. Departamento de Física de Materiales, Universidad Complutense de Madrid, E-28040 Madrid, Spain

Abstract

A rapid high-pressure preparation method (3.5 GPa) yields FexTi2S4 Heideite-type phase. Magnetism offers a complex scenario with AFM to FM-like interactions. The magnetocaloric effect yields significant entropy and relative cooling power.

Funder

Ministerio de Ciencia e Innovación

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Publisher

Royal Society of Chemistry (RSC)

Subject

Materials Chemistry,General Chemistry

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