Magnetic properties, x-ray absorption spectroscopy and electronic structure of GdCrTiO5

Autor(es)

Guedes, E. B. ; Martins, H. P. ; Abbate, M. ; Masunaga, S. H. ; Ramirez, F. E. N. ; Jardim, R. F. ; Mossanek, R. J. O.

• Tipo de documento: Artigo Científico
• Fonte: Journal of Alloys and Compounds; v. 724, p. 67-73, NOV 15 2017.
• Citações Web of Science: 4

Resumo

We study the electronic structure of GdCrTiO5 polycrystals by means of magnetic susceptibility and heat capacity measurements, as well as x-ray absorption spectroscopies on the Cr 2p, Ti 2p and O 1s levels. The experimental results were interpreted with Charge Transfer Multiplet and Density Functional Theory calculations. Magnetic susceptibility and specific heat measurements indicate a long-range antiferromagnetic ordering at 0.9 K probably related to the Gd sublattice. The results indicate that spin-orbit interaction, rather than hybridization, may be crucial for the stabilization of magnetic ordering in the RCrTiO5 (R = rare earth) family. (C) 2017 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 14/19245-6 - Procura por novos materiais supercondutores
• Beneficiário: Renato de Figueiredo Jardim
• Modalidade de apoio: Bolsas no Exterior - Pesquisa
• Processo FAPESP: 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais
• Beneficiário: Elson Longo da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs