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Comparison between experiment and calculated band structures for DyN and SmN

A. R. H. Preston·S. Granville·D. H. Housden·B. Ludbrook·B. J. Ruck·H. J. Trodahl·A. Bittar·G. V. M. Williams·J. E. Downes·A. DeMasi·Y. Zhang·K. E. Smith·W. R. L. Lambrecht
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Abstract

We investigate the electronic band structure of two of the rare-earth nitrides, DyN and SmN. Resistivity measurements imply that both materials have a semiconducting ground state, and both show resistivity anomalies coinciding with the magnetic transition, despite the different magnetic states in DyN and SmN. X-ray absorption and emission measurements are in excellent agreement with LSDA+U calculations, although for SmN the calculations predict a zero band gap.

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A. R. H. Preston, S. Granville, D. H. Housden, B. Ludbrook, B. J. Ruck, H. J. Trodahl, A. Bittar, G. V. M. Williams, J. E. Downes, A. DeMasi, Y. Zhang, K. E. Smith, W. R. L. Lambrecht. 2008-03-20. Comparison between experiment and calculated band structures for DyN and SmN. https://doi.org/10.1103/physrevb.76.245120

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