Correlation between lattice modulation and physical properties of La0.72Ca0.28MnO3 films grown on LaAlO3 substrates

被引：15

作者：

Liang, Yuan-Chang ^{[1
]}

Liang, Yung-Ching

机构：

[1] Chien Kuo Technol Univ, Dept Mech Engn, Changhua 500, Taiwan

[2] Univ So Calif, Dept Phys & Astron, Los Angeles, CA 90089 USA

来源：

JOURNAL OF CRYSTAL GROWTH | 2007年 / 303卷 / 02期

关键词：

characterization; surface structure; manganites; oxides; perovskites;

D O I：

10.1016/j.jcrysgro.2007.01.027

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The microstructure of sputter-deposited La0.72Ca0.28MnO3 (LCMO) films on LaAlO3 (0 0 1) substrates was studied by X-ray scattering and atomic force microscopy. The design of the LCMO films with various degrees of lattice modulation was realized by varying the film thickness and the process conditions. The strain state importantly affects the variation among the surface microstructures of the LCMO epilayers. The LCMO textured film is rougher at both the surface and interface than the epitaxially grown films. The modifications of magneto-transport properties of manganite thin films were discussed in relation to changes in the degree of lattice modulation. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：638 / 644

页数：7

共 39 条

[1] Magnetic anisotropy and strain states of (001) and (110) colossal magnetoresistance thin films [J].

Berndt, LM ;

Balbarin, V ;

Suzuki, Y .

APPLIED PHYSICS LETTERS, 2000, 77 (18) :2903-2905

[2] EFFECT OF SPUTTERING PRESSURE ON THE STRUCTURE AND SOLID-STATE REACTION OF TITANIUM-NICKEL COMPOSITIONALLY MODULATED FILM [J].

CLEMENS, BM .

JOURNAL OF APPLIED PHYSICS, 1987, 61 (09) :4525-4529

[3] Influence of misfit stress on the magnetoresistive properties of La0.7Ca0.3MnO3-δ thin films [J].

Gommert, E ;

Cerva, H ;

Wecker, J ;

Samwer, K .

JOURNAL OF APPLIED PHYSICS, 1999, 85 (08) :5417-5419

[4] Material characteristics of perovskite manganese oxide thin films for bolometric applications [J].

Goyal, A ;

Rajeswari, M ;

Shreekala, R ;

Lofland, SE ;

Bhagat, SM ;

Boettcher, T ;

Kwon, C ;

Ramesh, R ;

Venkatesan, T .

APPLIED PHYSICS LETTERS, 1997, 71 (17) :2535-2537

[5] Thickness dependence of microstructure in LaCaMnO thin films [J].

Gross, GM ;

Razavi, FS ;

Praus, RB ;

Habermeier, HU .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 211 (1-3) :22-27

[6] In-plane grain boundary effects on the magnetotransport properties of La0.7Sr0.3MnO3-δ [J].

Gu, JY ;

Ogale, SB ;

Rajeswari, M ;

Venkatesan, T ;

Ramesh, R ;

Radmilovic, V ;

Dahmen, U ;

Thomas, G ;

Noh, TW .

APPLIED PHYSICS LETTERS, 1998, 72 (09) :1113-1115

[7] H-dependent magnetic domain structures in La0.67Sr0.33MnO3 thin films [J].

Hawley, ME ;

Brown, GW ;

Yashar, PC ;

Kwon, C .

JOURNAL OF CRYSTAL GROWTH, 2000, 211 (1-4) :86-92

[8] LATTICE EFFECTS ON THE MAGNETORESISTANCE IN DOPED LAMNO3 [J].

HWANG, HY ;

CHEONG, SW ;

RADAELLI, PG ;

MAREZIO, M ;

BATLOGG, B .

PHYSICAL REVIEW LETTERS, 1995, 75 (05) :914-917

[9] Spin-polarized intergrain tunneling in La-2/Sr-3(1)/3MnO3 [J].

Hwang, HY ;

Cheong, SW ;

Ong, NP ;

Batlogg, B .

PHYSICAL REVIEW LETTERS, 1996, 77 (10) :2041-2044

[10] The thickness dependence of the effect of pressures on magnetic and electronic properties of thin films of La2/3Ca1/3MnO3 [J].

Jacob, S ;

Roch, T ;

Razavi, FS ;

Gross, GM ;

Habermeier, HU .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (04) :2232-2235

← 1 2 3 4 →