Optical and transport properties of SmH2 + δ ( 0.25 < δ < 0.6) films

O. Nakamura, Y. Tanaka, M. Sakai, T. Nanbo, K. Koyama, Y. Uwatoko, S. Orimo

研究成果: Article査読

抄録

We have investigated the optical and electron transport properties of superstoichiometric samarium dihydride ( SmH2 + δ ) films by measuring the room-temperature reflectivity and transmittance spectra and the temperature dependence of the DC resistivity. The reflectivity shows a minima at 1-2 eV, which is possibly due to a plasma edge. The minima show a red shift as the H/Sm ratio increases. The transmittance has a maxima at about 1 eV. The line shape of the optical conductivity cannot be explained in terms of a simple single-carrier model. In the range 0.25 < δ < 0.6, the relaxation time increases as δ increases.

本文言語English
ページ(範囲)1138-1139
ページ数2
ジャーナルPhysica B: Condensed Matter
378-380
SPEC. ISS.
DOI
出版ステータスPublished - 2006 5月 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

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