Title: Local structure and magnetism of the LaxEu1-xPO4 solid-solutions
Authors: MARTEL LAURARAKHMATULLIN AYDARBALDOVÍ JOSÉ J.PERFETTI MAUROPOPA KARINDESCHAMPS MICHAELGOUDER THOMASCOLINEAU ERICKOVACS ATTILAGRIVEAU JEAN-CHRISTOPHE
Citation: PHYSICAL REVIEW B vol. 100 no. 5 p. 054412 (17 pp)
Publisher: AMER PHYSICAL SOC
Publication Year: 2019
JRC N°: JRC116834
ISSN: 2469-9950 (online)
URI: https://publications.jrc.ec.europa.eu/repository/handle/JRC116834
DOI: 10.1103/PhysRevB.100.054412
Type: Articles in periodicals and books
Abstract: By combining high spinning speed (60 kHz) and low field (4.7 T) 31P solid-state NMR with magnetic susceptibility measurements, we experimentally characterized a series of solid solutions belonging to the La1-xEuxPO4 (0 ≤ x ≤ 1) series. Analyses of the magnetic susceptibility data were carried out using the free ion model and crystal field theory calculations allowing to extract the energy levels and the crystal field parameters. The paramagnetic shifts of the P sites having one Eu3+ cation in their surrounding were predicted by combining the determined crystal field and energy level values with density functional theory (DFT) calculations. For the La0.9Eu0.1PO4 sample, these theoretical shifts gave a very good overall trend allowing the attribution of each P site. This study paves the way for the future analysis of both magnetic susceptibility and NMR data for a broad range of materials containing paramagnetic rare-earth cations.
JRC Directorate:Nuclear Safety and Security

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