Comparison between experiment and calculated band structures for DyN and SmN

被引：46

作者：

Preston, A. R. H. ^{[1
]}

Granville, S. ^{[1
]}

Housden, D. H. ^{[1
]}

Ludbrook, B. ^{[1
]}

Ruck, B. J. ^{[1
]}

Trodahl, H. J. ^{[1
]}

Bittar, A. ^{[2
]}

Williams, G. V. M. ^{[2
]}

Downes, J. E. ^{[3
]}

DeMasi, A. ^{[4
]}

Zhang, Y. ^{[4
]}

Smith, K. E. ^{[4
]}

Lambrecht, W. R. L. ^{[5
]}

机构：

[1] Victoria Univ Wellington, Sch Chem & Phys Sci, MacDiarmid Inst Adv Mat & Nanotechnol, Wellington, New Zealand

[2] Ind Res Ltd, Lower Hutt, New Zealand

[3] Macquarie Univ, Dept Phys, N Ryde, NSW 2109, Australia

[4] Boston Univ, Dept Phys, Boston, MA 02215 USA

[5] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA

来源：

PHYSICAL REVIEW B | 2007年 / 76卷 / 24期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.76.245120

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 densities of states obtained from LSDA+U calculations, although for SmN the calculations predict a zero band gap.

引用

页数：5

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