Annealing effect in terbium-scandium-aluminum garnet single crystal

Yuji Kagamitani, Dorota Anna Pawlak, Hiroki Sato, Akira Yoshikawa, Hiroshi Machida, Tsuguo Fukuda

研究成果: Article査読

11 被引用数 (Scopus)

抄録

Terbium-scandium-aluminum garnet (TSAG) single crystal grown by the Czochralski method was annealed in a reducing or an oxidizing atmosphere. The oxidation state of terbium cations was studied using transmission spectra and magnetic susceptibility. By annealing in the reducing atmosphere. Tb4+ was reduced to Tb3+. In the case of annealing in the oxidizing atmosphere, some of Tb3+ ions were oxidized to Tb4+. Verdet constant and extinction ratios were measured after annealing in both atmospheres. The highest Verdet constant was obtained for the TSAG annealed in the reducing atmosphere (for λ = 649.1 nm V = 8.580 × 10-3 deg;·Oe-1·cm-1). The extinction ratio of the sample annealed in the oxidizing atmosphere showed the highest value of 40.35 dB.

本文言語English
ページ(範囲)6020-6022
ページ数3
ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
41
10
DOI
出版ステータスPublished - 2002 10

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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