Magnetism and electronic structure calculation of SmN

Abstract

The results of the electronic structure calculations performed on SmN by using the LDA+U method with and without including the spin-orbit coupling are presented. Within the LDA+U approach, a N(2$p$) band polarization of $\simeq 0.3{\mu }_B$ is induced by Sm(4$f$)-N(2$p$) hybridization, and a half-metallic ground state is obtained. By including spin-orbit coupling the magnetic structure was shown to be antiferromagnetic of type II, with Sm spin and orbital moments nearly cancelling. This results into a semiconducting ground state, which is in agreement with experimental results.

Submitted to JPCM, 12 pages, 4 figures

References in corpus (6)

• Anisotropy and Magnetism in the LSDA+U Method
• Magnetic state of plutonium ion in metallic Pu and its compounds
• Correlation effects in total energy of transition metals and related properties
• Near-Zero Moment Ferromagnetism in the Semiconductor SmN
• Comparison between experiment and calculated band structures for DyN and SmN
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Cited by in corpus (2)

• Optical Spectroscopy of SmN: Evidence for 4f Transport
• 4f Conduction in the Magnetic Semiconductor NdN