Please wait a minute...
J Mater Sci Technol  2009, Vol. 25 Issue (03): 336-340    DOI:
Research Articles Current Issue | Archive | Adv Search |
Microstructure of Epitaxial La0.7Ca0.3MnO3 Thin Films Deposited by Direct Current Magnetron Sputtering on LaAlO3 Substrate
Mingguang Wang, Hengqiang Ye
1) Department of Sciences, Northeastern University, Shenyang 110004, China
2) Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
Download:  HTML  PDF(834KB) 
Export:  BibTeX | EndNote (RIS)      
Abstract  

Transmission electron microscopy (TEM) and high resolution electron microscopy (HREM) have been used to study the microstructural properties of La0.7Ca0.3MnO3 films on (001) LaAlO3 substrates prepared by direct current magnetron sputtering technique. The as-grown thin films with different thickness are perfectly coherent with the substrates. The film suffers a tetragonal deformation in the area near the interface between the film and the substrate. With increasing thickness, the film is partially relaxed. It was found that La0.7Ca0.3MnO3 films consist of two types of oriented domains described as: (1) (110)f [001]f||(001)s[100]s and (1¹10)f [001]f||(001)s[100]s and (2) (110)f [001]f||(001)s[010]s and (1¹10)f [001]f//(001)s[010]s. Upon annealing, the film is relaxed by the formation of mis¯t dislocations. Other than mis¯t dislocations, two types of threading dislocations with Burgers vector of <100> and <110> were also identified.

Key words:  Colossal magnetoresistance      Microstructure      Film      Dislocation     
Received:  17 January 2008     
Fund: 

y the National Natural Science Foundation of China under Grant 50572013

Corresponding Authors:  wang mingguang     E-mail:  wangmg@imp.neu.edu.cn

Cite this article: 

Mingguang Wang,Hengqiang Ye. Microstructure of Epitaxial La0.7Ca0.3MnO3 Thin Films Deposited by Direct Current Magnetron Sputtering on LaAlO3 Substrate. J Mater Sci Technol, 2009, 25(03): 336-340.

URL: 

https://www.jmst.org/EN/     OR     https://www.jmst.org/EN/Y2009/V25/I03/336

[1 ] R.V. Helmont, J. Wecker, B. Holczapfel, L. Schultz and K. Sammer: Phys. Rev. Lett., 1993, 71, 2331.
[2 ] C.N.R. Rao, A.K. Cheetham and R. Ramesh: Chem. Mater., 1996, 8, 2421.
[3 ] W.J. Lu, Y.P. Sun, B.C. Zhao, X.B. Zhu and W.H. Song: Phys. Rev. B, 2006, 73, 174425.
[4 ] H.L. Yakel: Acta Cryst., 1955, 8, 394.
[5 ] M.G. Wang, D.X. Li, L.L. He and H.Q. Ye: Acta Metall. Sin, 2000, 36, 449. (in Chinese)
[6 ] G.C. Xiong, G.J. Lian, Z.H. Wang, M.G. Wang and H.Q. Ye: Mater. Sci. Eng. B, 2000, 76, 10.
[7 ] G.J. Lian, X. Wang, G.C. Xiong and J. Gao: Phys. Rev. B, 2005, 72, 24503.
[8 ] M.G. Wang, D.X. Li, L.L. He, H.Q. Ye and G.C. Xiong: J. Mater. Sci. Technol., 2000, 16(6), 601.
[9 ] A.E. Romanov and J.S. Speck: Appl. Phys. Lett., 2003, 83, 2569.
[10] T. Suzuki, Y. Nishe and M. Fujimoto: Philos. Mag., 1999, 79, 2461.

[1] Piao Gao, Wenpu Huang, Huihui Yang, Guanyi Jing, Qi Liu, Guoqing Wang, Zemin Wang, Xiaoyan Zeng. Cracking behavior and control of β-solidifying Ti-40Al-9V-0.5Y alloy produced by selective laser melting[J]. 材料科学与技术, 2020, 39(0): 144-154.
[2] Xiaogang Li, Kejian Li, Shanlin Li, Yao Wu, Zhipeng Cai, Jiluan Pan. Microstructure and high temperature fracture toughness of NG-TIG welded Inconel 617B superalloy[J]. 材料科学与技术, 2020, 39(0): 173-182.
[3] Shanshan Chen, Bin Zhang, Bin Zhanggchun, Hao Lin, Hui Yang, Feng Zheng, Ming Chen, Ke Yang. Assessment of structure integrity, corrosion behavior and microstructure change of AZ31B stent in porcine coronary arteries[J]. 材料科学与技术, 2020, 39(0): 39-47.
[4] Pengfei Gao, Mingwang Fu, Mei Zhan, Zhenni Lei, Yanxi Li. Deformation behavior and microstructure evolution of titanium alloys with lamellar microstructure in hot working process: A review[J]. 材料科学与技术, 2020, 39(0): 56-73.
[5] Honggang Dong, Yueqing Xia, Xinxing Xu, Gul Jabeen Naz, Xiaohu Hao, Peng Li, Jun Zhou, Chuang Dong. Performance of GH4169 brazed joint using a new designed nickel-based filler metal via cluster-plus-glue-atom model[J]. 材料科学与技术, 2020, 39(0): 89-98.
[6] Hao Yu, Wei Xu, Sybrand van der Zwaag. Microstructure and dislocation structure evolution during creep life of Ni-based single crystal superalloys[J]. 材料科学与技术, 2020, 45(0): 207-214.
[7] Kai Wang, Lei Chen, Chenguang Xu, Wen Zhang, Zhanguo Liu, Yujin Wang, Jiahu Ouyang, Xinghong Zhang, Yudong Fu, Yu Zhou. Microstructure and mechanical properties of (TiZrNbTaMo)C high-entropy ceramic[J]. 材料科学与技术, 2020, 39(0): 99-105.
[8] Jixin Yang, Yiqiang Chen, Yongjiang Huang, Zhiliang Ning, Baokun Liu, Chao Guo, Jianfei Sun. Hierarchical microstructure of a titanium alloy fabricated by electron beam selective melting[J]. 材料科学与技术, 2020, 42(0): 1-9.
[9] Praveen Sreeramagiri, Ajay Bhagavatam, Abhishek Ramakrishnan, Husam Alrehaili, Guru Prasad Dinda. Design and development of a high-performance Ni-based superalloy WSU 150 for additive manufacturing[J]. 材料科学与技术, 2020, 47(0): 20-28.
[10] P.A. Morton, H.C. Taylor, L.E. Murr, O.G. Delgado, C.A. Terrazas, R.B. Wicker. In situ selective laser gas nitriding for composite TiN/Ti-6Al-4V fabrication via laser powder bed fusion[J]. 材料科学与技术, 2020, 45(0): 98-107.
[11] XiTing Zhong, Lei Wang, LinKe Huang, Feng Liu. Transition of dynamic recrystallization mechanism during hot deformation of Incoloy 028 alloy[J]. 材料科学与技术, 2020, 42(0): 241-253.
[12] Zhiqiang Zhang, Changshu He, Ying Li, Lei Yu, Su Zhao, Xiang Zhao. Effects of ultrasonic assisted friction stir welding on flow behavior, microstructure and mechanical properties of 7N01-T4 aluminum alloy joints[J]. 材料科学与技术, 2020, 43(0): 1-13.
[13] Yuwei Ye, Zilong Jiang, Yangjun Zou, Hao Chen, Shengda Guo, Qiumin Yang, Liyong Chen. Evaluation of the inhibition behavior of carbon dots on carbon steel in HCl and NaCl solutions[J]. 材料科学与技术, 2020, 43(0): 144-153.
[14] Lanlan Yang, Minghui Chen, Jinlong Wang, Yanxin Qiao, Pingyi Guo, Shenglong Zhu, Fuhui Wang. Microstructure and composition evolution of a single-crystal superalloy caused by elements interdiffusion with an overlay NiCrAlY coating on oxidation[J]. 材料科学与技术, 2020, 45(0): 49-58.
[15] Yanfu Chai, Chao He, Bin Jiang, Jie Fu, Zhongtao Jiang, Qingshan Yang, Haoran Sheng, Guangsheng Huang, Dingfei Zhang, Fusheng Pan. Influence of minor Ce additions on the microstructure and mechanical properties of Mg-1.0Sn-0.6Ca alloy[J]. 材料科学与技术, 2020, 37(0): 26-37.
No Suggested Reading articles found!
ISSN: 1005-0302
CN: 21-1315/TG
Home
About JMST
Privacy Statement
Terms & Conditions
Editorial Office: Journal of Materials Science & Technology , 72 Wenhua Rd.,
Shenyang 110016, China
Tel: +86-24-83978208
E-mail:JMST@imr.ac.cn

Copyright © 2016 JMST, All Rights Reserved.