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Type: Artigo
Title: Ni 3d - O 2p Hybridization Dependent Magnetic Properties Of Lanio3 Thin Films
Author: Kumar
Yogesh; Singh
Abhinav Pratap; Sharma
S. K.; Choudhary
R. J.; Thakur
P.; Knobel
M.; Brookes
N. B.; Kumar
Abstract: We present here the study on magnetic properties and their relation to the electronic structure for c-axis oriented LaNiO3 films deposited on LaAlO3 single crystals using the rf-magnetron sputtering. Swift heavy ion irradiation induced annealing alters the unusual temperature dependent magnetic behaviour of pristine film to the paramagnetic one. X-ray absorption spectroscopic measurements, performed at O K-edge and Ni L-edge, reveal that Ni-O hybridization is increased after the initial irradiation. Charge-transfer multiplet calculations of the Ni L-edge indicate that variation of magnetic behaviour can be related to the Ni-O hybridization strength inducing a further variation in Ni spin state. (C) 2016 Published by Elsevier B.V.
Subject: Hybridization
X-ray Absorption Spectroscopy
Swift Heavy Ion Irradiation
Editor: Elsevier Science SA
Rights: fechado
Identifier DOI: 10.1016/j.tsf.2016.11.008
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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