Effect of annealing on optical absorption of LaAlO3 at terahertz frequencies

Ken Ichi Nomura*, Shimpei Okami, Xiaojun Xie, Maya Mizuno, Kaori Fukunaga, Yoshimichi Ohki

*この研究の対応する著者

研究成果: Article査読

10 被引用数 (Scopus)

抄録

Absorption spectra of LaAlO3(100) single crystals were measured at frequencies from 1.0 to 3.5 THz. A new absorption peak appears at ̃3:0 THz after annealing at temperatures above 500 °C. Simultaneously, striped domains with widths ranging from about 20 to about 300 μm in the original samples completely disappeared. Since oxygen vacancies are assumed to play an important role in the formation of domains, the absorption peak at ̃3:0 THz seems to be related to oxygen vacancies

本文言語English
論文番号021502
ジャーナルJapanese journal of applied physics
50
2
DOI
出版ステータスPublished - 2011 2月 1

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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