In-doped SrTiO3 ceramic thin films

被引:32
作者
Dai, SY
Lu, HB
Chen, F
Chen, ZH
Ren, ZY
Ng, DHL
机构
[1] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
[2] Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
关键词
D O I
10.1063/1.1478148
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report the characterization of the ceramic SrIn0.1Ti0.9O3 thin film grown by laser molecular-beam epitaxy. The lattice constant is determined to be 0.3948 nm, slightly larger than that of the SrTiO3 substrate. Hall measurement confirms that this film is a p-type semiconductor either below 92 K or above 158 K. X-ray photoemission spectroscopy study shows that the width of the valence band of the p-type SrIn0.1Ti0.9O3 film is narrower than that of the n-type SrNb0.1Ti0.9O3 film. There is a 0.35 eV difference in the Fermi energy level of the two films. The electronic state of the surface layer of the SrIn0.1Ti0.9O3 film is found to be different from that of its interior. (C) 2002 American Institute of Physics.
引用
收藏
页码:3545 / 3547
页数:3
相关论文
共 17 条
[11]   Energy-loss structure in core-level photoemission satellites of SrTiO3, SrTiO3:La, and SrTiO3:Nb [J].
Kohiki, S ;
Arai, M ;
Yoshikawa, H ;
Fukushima, S ;
Oku, M ;
Waseda, Y .
PHYSICAL REVIEW B, 2000, 62 (12) :7964-7969
[12]   Pulsed laser deposition of superconducting Nb-doped strontium titanate thin films [J].
Leitner, A ;
Rogers, CT ;
Price, JC ;
Rudman, DA ;
Herman, DR .
APPLIED PHYSICS LETTERS, 1998, 72 (23) :3065-3067
[13]   Thickness dependence of dielectric loss in SrTiO3 thin films [J].
Li, HC ;
Si, WD ;
West, AD ;
Xi, XX .
APPLIED PHYSICS LETTERS, 1998, 73 (04) :464-466
[14]   ELECTRONIC-STRUCTURE OF STRONTIUM-TITANATE [J].
REIHL, B ;
BEDNORZ, JG ;
MULLER, KA ;
JUGNET, Y ;
LANDGREN, G ;
MORAR, JF .
PHYSICAL REVIEW B, 1984, 30 (02) :803-806
[15]   Electronic structure of electron doped SrTiO3:: SrTiO3-δ and Sr1-xLaxTiO3 [J].
Shanthi, N ;
Sarma, DD .
PHYSICAL REVIEW B, 1998, 57 (04) :2153-2158
[16]   Laser molecular beam epitaxy and characterization of perovskite oxide thin films [J].
Yang, GZ ;
Lu, HB ;
Chen, F ;
Zhao, T ;
Chen, ZH .
JOURNAL OF CRYSTAL GROWTH, 2001, 227 :929-935
[17]   Highly conductive Nb doped SrTiO3 epitaxial thin films grown by laser molecular beam epitaxy [J].
Zhao, T ;
Lu, HB ;
Chen, F ;
Dai, SY ;
Yang, GZ ;
Chen, ZH .
JOURNAL OF CRYSTAL GROWTH, 2000, 212 (3-4) :451-455