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Your search keyword '"Wang, Genshui"' showing total 31 results
Start Over Author "Wang, Genshui" Publication Year Range Last 10 years Journal ceramics international
31 results on '"Wang, Genshui"'

30. Thickness dependent magnetic properties of epitaxial La0.7Sr0.3MnO3 thin films prepared by chemical solution deposition method.

Author

Dong, Wenxia, Zhang, Yuanyuan, Qi, Ruijuan, Huang, Rong, Yang, Jing, Bai, Wei, Chen, Ying, Wang, Genshui, Dong, Xianlin, and Tang, Xiaodong

Subjects
*MANGANESE oxides, *CHEMICAL solution deposition, *MAGNETIC properties, *X-ray diffraction, *TRANSMISSION electron microscopy, *MAGNETIC polarons
Abstract

The correlation between films thickness and the physical properties (such as magnetic, magnetotransport properties) has been investigated in 5 nm and 160 nm La 0.7 Sr 0.3 MnO 3 (LSMO). The films were deposited on (100) SrTiO 3 (STO) substrates by chemical solution deposition method. High-resolution X-ray diffraction (HRXRD) and high-resolution transmission electron microscopy have been used to estimate the epitaxial structure and the change of strain. Both of the films are grown on STO substrates with coherent interfaces. The thinner sample has fully strained while the thicker film is partially strain relaxation. With decreasing film thickness from 160 to 5 nm, both of the T C and T MI strongly depressed. The strain and limitation of the spin fluctuations by the film thickness are the main origins of the Tc lowering. The MR value of S1 is much larger than that of S2 at 300 K. It can be elucidated by the existence of magnetic polarons around T C and spin fluctuations in the interface between the film and the substrate. [ABSTRACT FROM AUTHOR]

Published
2017
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31. Structure influence on the magnetic properties of La0.7Sr0.3MnO3/La0.7Ca0.3MnO3 multilayer thin films fabricated by chemical solution deposition method.

Author

Dong, Wenxia, Zhang, Yuanyuan, Qi, Ruijuan, Huang, Rong, Yang, Jing, Bai, Wei, Chen, Ying, Wang, Genshui, Dong, Xianlin, and Tang, Xiaodong

Subjects
*MULTILAYERED thin films, *CHEMICAL solution deposition, *MAGNETIC properties, *CRYSTAL structure, *X-ray diffraction, *MAGNETIZATION
Abstract

La 0.7 Ca 0.3 MnO 3 (LCMO)/La 0.7 Sr 0.3 MnO 3 (LSMO) multilayer films have been successfully prepared on (100) oriented SrTiO 3 substrates by chemical solution deposition method. The relationship between the multilayer structure and physical properties was systematically studied. X-ray diffraction (HRXRD) patterns of θ−2θ scan show that both of the films have perfect crystalline orientation. Reciprocal space maps (RSM) of the multilayer films show that the multilayer films are epitaxial growth and fully strained. Independent ferromagnetic - paramagnetic transition of LCMO and LSMO layer are visible as a function of the temperature, which indicates that the magnetization of the individual layers can rotate independently of each other. The maximum value of absolute MR is increased slightly as the layer number increasing. It can be attributed to the spin-polarized tunneling which is associated with magnetic domain rotation at the interface. [ABSTRACT FROM AUTHOR]

Published
2017
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