Magnetooptical characterization of clb-type heusler compounds, pti-mni+jsbi-(x= -0.1 and 0, 0.1)

Koki Takanashi, Hiroyasu Fujimori, Katsuaki Sato, Jun Watanabe, Yumiko Sato

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Diagonal (sxx) and off-diagonal elements of the dielectric tensor for a polished surface of a bulk sample of stoichiometric PtMnSb were obtained from the measured spectra of reflectance (R), magnetooptical Kerr rotation (0K) and ellipticity (rjK). The enhancement of 0K by annealing was found to be due mainly to the decrease in the imaginary part of exx. The magnetooptical absorption spectrum was in good agreement with that estimated from the joint density of states calculated by van der Heide et al. The spectra of exx and exy were also obtained for nonstoichiometric Pt1_A./2MnH.xSb1_Ar/2 (x=0.1 and 0.1). It was suggested that the band structure was changed by the existence of excess Mn atoms.

Original languageEnglish
Pages (from-to)52-57
Number of pages6
JournalJapanese journal of applied physics
Volume30
Issue number1
DOIs
Publication statusPublished - 1991 Jan

Keywords

  • Annealing effect
  • Composition dependence
  • Dielectric tensor
  • Magnetooptical Kerr ellipticity
  • Magnetooptical Kerr rotation
  • PtMnSb
  • Reflectance

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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