Structure, Electrical, and Optical Properties of Nb-doped BaTiO3 Thin Films Grown by Laser Molecular Beam Epitaxy
作者： Guo Hai-Zhong , Liu Li-Feng , Lu Hui-Bin , Fei Yi-Yan , Xiang Wen-Feng
DOI: 10.1088/0256-307X/21/2/051
关键词:
摘要: Structure, electrical, and optical properties of Nb-doped BaTiO3 (Nb:BTO) thin films on MgO substrates grown by laser molecular beam epitaxy with increasing Nb content were investigated. The Nb:BTO high crystallinity are epitaxially substrates. With more content, the impurity phases found in films. Hall measurement at room temperature confirms that charge carriers n-type. When increases, carrier concentration mobility increase. Meanwhile transmittance decreases increase Nb-doping, width forbidden band each group is not affected presence samples. Raman spectra show structural phase transition may occur Nb-doping meantime defects impurities exist
iphy.ac.cn参考文章(26)
R. A. McKee, F. J. Walker, E. D. Specht, G. E. Jellison, L. A. Boatner, J. H. Harding, Interface stability and the growth of optical quality perovskites on MgO. Physical Review Letters. ,vol. 72, pp. 2741- 2744 ,(1994) , 10.1103/PHYSREVLETT.72.2741
Lawrence H. Robins, Debra L. Kaiser, Lawrence D. Rotter, Peter K. Schenck, Gregory T. Stauf, Daniel Rytz, Investigation of the structure of barium titanate thin films by Raman spectroscopy Journal of Applied Physics. ,vol. 76, pp. 7487- 7498 ,(1994) , 10.1063/1.357978
Seok-Hyun Yoon, Hwan Kim, Effect of donor (Nb) concentration on the bulk electrical resistivity of Nb-doped barium titanate Journal of Applied Physics. ,vol. 92, pp. 1039- 1047 ,(2002) , 10.1063/1.1486049
L. T. Hudson, R. L. Kurtz, S. W. Robey, D. Temple, R. L. Stockbauer, Photoelectron spectroscopic study of the valence and core-level electronic structure of BaTiO3. Physical Review B. ,vol. 47, pp. 1174- 1180 ,(1993) , 10.1103/PHYSREVB.47.1174
S. R. Gilbert, L. A. Wills, B. W. Wessels, J. L. Schindler, J. A. Thomas, C. R. Kannewurf, Electrical transport properties of epitaxial BaTiO3 thin films Journal of Applied Physics. ,vol. 80, pp. 969- 977 ,(1996) , 10.1063/1.362909
Myung‐Bok Lee, Masashi Kawasaki, Mamoru Yoshimoto, Hideomi Koinuma, Heteroepitaxial growth of BaTiO3 films on Si by pulsed laser deposition Applied Physics Letters. ,vol. 66, pp. 1331- 1333 ,(1995) , 10.1063/1.113232
J. Y. Chang, C. F. Chu, C. Y. Huang, R. R. Yueh, Optical and photorefractive properties of Nb-doped BaTiO3 Journal of Applied Physics. ,vol. 85, pp. 2318- 2322 ,(1999) , 10.1063/1.369544
Cui Da-fu, Lü Hui-bin, Wang Hui-sheng, Chen Zheng-hao, Zhou Yue-liang, Yang Guo-zhen, Yang Hai-tao, Tao Hong-jie, Li Lin, Atomic Force Microscopy Studies of Barium Titanate Thin Films Prepared by Laser Molecular Beam Epitaxy Chinese Physics Letters. ,vol. 14, pp. 134- 137 ,(1997) , 10.1088/0256-307X/14/2/016
Vitaly A. Gasparov, S. N. Ermolov, G. K. Strukova, N. S. Sidorov, S. S. Khassanov, H.-S. Wang, M. Schneider, E. Glaser, Wo. Richter, Superconducting and anomalous electron transport properties and electronic structure of BaNbO 3 − x and Ba 2 Nb 5 O x films Physical Review B. ,vol. 63, pp. 174512- ,(2001) , 10.1103/PHYSREVB.63.174512
P. S. Pizani, F. Lanciotti, R. G. Jasinevicius, J. G. Duduch, A. J. V. Porto, Raman characterization of structural disorder and residual strains in micromachined GaAs Journal of Applied Physics. ,vol. 87, pp. 1280- 1283 ,(2000) , 10.1063/1.372009