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Strained LiNbO{sub 3}/sapphire heterostructures grown by pulsed laser deposition

Book ·
OSTI ID:490840
; ;  [1]; ;  [2]
  1. Asahi Chemical Industry Co., Ltd., Fuji, Shizuoka (Japan). Central Lab.
  2. Osaka Univ., Ibaraki, Osaka (Japan). Inst. of Scientific and Industrial Research

Thin LiNbO{sub 3} films are deposited on (001) sapphire substrates by Ar F pulsed laser ablation. The films are evaluated by X-ray diffraction analysis at various temperatures, as well as high-resolution transmission electron microscopy (TEM). The deposited films are highly epitaxial but that are strained, that is, the a-axis is longer and the c-axis is shorter than those of LiNbO{sub 3} single crystals. X-ray diffraction analysis at deposition temperature, as well as TEM show that the strain is caused by the difference in thermal expansion coefficients between LiNbO{sub 3} and sapphire substrates.

OSTI ID:
490840
Report Number(s):
CONF-951155--; ISBN 1-55899-300-2
Country of Publication:
United States
Language:
English