Electronic structure of NiS$_{1-x}$Se$_x$ across the phase transition

D. D. Sarma; S. R. Krishnakumar; Nirmala Chandrasekharan; E. Weschke; C. Schüßler-Langeheine; L. Kilian; G. Kaindl

doi:10.1103/PhysRevLett.80.1284

Electronic structure of NiS$_{1-x}$Se$_x$ across the phase transition

Strongly Correlated Electrons 2009-10-31 v1

Authors: D. D. Sarma , S. R. Krishnakumar , Nirmala Chandrasekharan , E. Weschke , C. Schüßler-Langeheine , L. Kilian , G. Kaindl

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Abstract

We report very highly resolved photoemission spectra of NiS(1-x)Se(x) across the so-called metal-insulator transition as a function of temperature as well as composition. The present results convincingly demonstrate that the low temperature, antiferromagnetic phase is metallic, with a reduced density of states at E $_F$ . This decrease is possibly due to the opening of gaps along specific directions in the Brillouin zone caused by the antiferromagnetic ordering.

Cite

@article{arxiv.cond-mat/9803110,
  title  = {Electronic structure of NiS$_{1-x}$Se$_x$ across the phase transition},
  author = {D. D. Sarma and S. R. Krishnakumar and Nirmala Chandrasekharan and E. Weschke and C. Schüßler-Langeheine and L. Kilian and G. Kaindl},
  journal= {arXiv preprint arXiv:cond-mat/9803110},
  year   = {2009}
}

Comments

Revtex, 4 pages, 3 postscript figures

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