SUBSTRATE EFFECTS ON SURFACE MORPHOLOGY IN (La2/3-xYx) (Ca1/3-ySry)MnO3FILMS

H. L. Cai, Y. M. Zhang, X. S. Wu (), X. M. Lu and J. Gao ()
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H. L. Cai: National Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, China
Y. M. Zhang: National Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, China
X. S. Wu: National Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, China
X. M. Lu: National Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, China
J. Gao: Department of Physics, The University of Hong Kong, Hong Kong, China

Surface Review and Letters (SRL), 2007, vol. 14, issue 04, 845-848

Abstract: (La2/3-xYx) (Ca1/3-ySry)MnO3(LYCSMO) thin films withx = 0.08andy = 0.0868deposited onSrTiO3(STO), Yttrium-stabilizedZrO2(YSZ),LaAlO3(LAO), andMgOsubstrates are fabricated. Atomic force microscopy measurements reveal that the morphology is quite different for all films. A two-dimensional growth mode is suitable for LYCSMO film on STO, while on LAO, YSZ, andMgO, an island growth mode may be a good description for the growth of LYCSMO films. X-ray diffraction studies show that the films epitaxially grow alongcaxis on STO, LAO, andMgOsubstrates, while grows along a axis on YSZ substrate. The in-plane and out-of-plane lattice parameters are also obtained for films grown on all substrates.

Keywords: Colossal magnetoresistance; surface morphology; strain (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1142/S0218625X07010159

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