| Microstructure and Properties of La_(0.7)Sr_(0.3)MnO_3 Films Deposited on LaAlO_3 (100), (110), and (111) Substrates |
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| 作者姓名： | 杜永胜 张雪峰 于敦波 严辉 |
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| 作者单位： | College of Science Inner Mongolia University of Science & Technology，College of Science Inner Mongolia University of Science & Technology，Grirem Advanced Materials Co. Ltd.，Laboratory of Thin Film Materials Beijing University of Technology，Baotou 014010 China Baotou 014010 China Beijing 100088 China Beijing 100022 China |
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| 基金项目： | Project supported bythe Key Basic Research Project of MOST(2002CCC01300)，the Natural Science Foundation of Beijing(2021003)，the Science &Technology Development Project of Beijing Education Committee and Beijing Specific Projectto Foster Elitist (20041D0501513) |
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| 摘 要： | Recently , doped perovskite manganite has kin-dled a renewed interest because they exhibit a varietyof unique magnetic and electronic behaviors such ascolossal magnetoresistance (CMR) ,percolative phaseseparation,and spin/charge/orbital ordering1 ~3].Theemphasis of both theoretical and experi mental studiesof doped materials has beenthe effect of CMRbecauseit can be usedfor potential applicationin magnetic de-vices .As a member of the CMR materials ,La0 .7Sr0 .3MnO3(LSMO) possesses the …
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Microstructure and Properties of La0.7 Sr0.3 MnO3 Films Deposited on LaAlO3 (100), (110), and ( 111 ) Substrates |
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| Du Yongsheng,Zhang Xuefeng,Yu Dunbo,Yan Hui.Microstructure and Properties of La_(0.7)Sr_(0.3)MnO_3 Films Deposited on LaAlO_3 (100), (110), and (111) Substrates[J].Journal of Rare Earths,2006,24(5). |
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| Authors: | Du Yongsheng Zhang Xuefeng Yu Dunbo Yan Hui |
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| Abstract: | A comparative study of the crystalline structure, magnetic properties, and transport properties of LSMO films grown on (100)-, (110)-, and (111) LaAlO_3 (LAO) substrates was carried out. Using atomic force microscopy, round, rectangle, and dot surface morphologies were observed in (100)-, (110)-, and (111)-oriented LSMO films, respectively. Electrical and magnetic characterizations were performed on LSMO films of different orientation to provide evidence for the effect of strain on the magnetotransport properties. The (111)-oriented LSMO film has higher saturation magnetization and lower resistance compared with the (100)- and (110)-oriented LSMO films, which results from the smaller elastic deformation due to the larger elastic modulus along the <111> crystallographic direction. |
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| Keywords: | La0 7Sr0 3MnO3 film strain crystallographic elastic modulus rare earths |
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