Transmission electron microscopy of La0.7Ca0.3 MnO3 CMR films

被引：4

作者：

Arita, M ^{[1
]}

Sasaki, A

Hamada, K

Okada, A

Hayakawa, J

Asano, H

Matsui, M

Takahashi, H

机构：

[1] Hokkaido Univ, Grad Sch Engn, Sapporo, Hokkaido 0608628, Japan

[2] Nagoya Univ, Grad Sch Engn, Nagoya, Aichi 4648603, Japan

[3] Hokkaido Univ, Ctr Adv Res Energy Technol, Sapporo, Hokkaido 0608628, Japan

来源：

JOURNAL OF ELECTRON MICROSCOPY | 1999年 / 48卷 / 04期

关键词：

high resolution TEM; La-Ca-Mn-O; colossal magnetoresistance; thin film; microstructure; epitaxy;

D O I：

10.1093/oxfordjournals.jmicro.a023692

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

The microstructure of La0.7Ca0.3MnO3 (LCMO) films grown on (001) surfaces of various cubic or pseudo-cubic substrates (MgO, SrTiO3, LaSrGaO4 and YAlO3) was studied by means of transmission electron microscopy. The epitaxy was mainly (001)(p)[100](p)//(001)(s)[100](s) (p: perovskile primitive cell; s: substrate). The film on MgO contained many planar defects and intergrown grains which originated at the substrate surface. The film on STO was composed of one crystallographic-type domain but having a twin structure, while films on the other substrates showed the 'three-domain' structure where the perovskite primitive lattice continued throughout the area observed.

引用

页码：381 / 385

页数：5

共 12 条

[1] Structural and microstructural studies of the series La2/3-xLi3x square 1/3-2xTiO3 [J].

Fourquet, JL ;

Duroy, H ;

CrosnierLopez, MP .

JOURNAL OF SOLID STATE CHEMISTRY, 1996, 127 (02) :283-294

[2]

HAYAKAWA J, 1999, J MAGN SOC JPN, V23, P1141

[3]

HAYAKAWA J, 1999, J MAGN SOC JPN, V23, P102

[4] Monoclinic microdomains and clustering in the colossal magnetoresistance manganites Pr0.7Ca0.25Sr0.05MnO3 and Pr0.75Sr0.25MnO3 [J].

Hervieu, M ;

VanTendeloo, G ;

Caignaert, V ;

Maignan, A ;

Raveau, B .

PHYSICAL REVIEW B, 1996, 53 (21) :14274-14284

[5] 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

[6] GIANT MAGNETORESISTANCE IN LA1-XSRXMNOZ FILMS NEAR ROOM-TEMPERATURE [J].

JU, HL ;

KWON, C ;

LI, Q ;

GREENE, RL ;

VENKATESAN, T .

APPLIED PHYSICS LETTERS, 1994, 65 (16) :2108-2110

[7] Anisotropic strain and magnetoresistance of La0.7Ca0.3MnO3 [J].

Koo, TY ;

Park, SH ;

Lee, KB ;

Jeong, YH .

APPLIED PHYSICS LETTERS, 1997, 71 (07) :977-979

[8] Stress-induced surface magnetization of (La0.7Sr0.3)MnO3 thin films [J].

Kwon, C ;

Lofland, SE ;

Bhagat, SM ;

Rajeswari, M ;

Venkatesan, T ;

Ramesh, R ;

Kratz, AR ;

Gomez, RD .

IEEE TRANSACTIONS ON MAGNETICS, 1997, 33 (05) :3964-3966

[9] VERY LARGE MAGNETORESISTANCE IN PEROVSKITE-LIKE LA-CA-MN-O THIN-FILMS [J].

MCCORMACK, M ;

JIN, S ;

TIEFEL, TH ;

FLEMING, RM ;

PHILLIPS, JM ;

RAMESH, R .

APPLIED PHYSICS LETTERS, 1994, 64 (22) :3045-3047

[10] A TEM and powder XRD study of new fluorite and perovskite-related phases in the CaO-ZrO2-Ta2O5 system [J].

Schmid, S ;

Lobo, C ;

Withers, RL ;

Thompson, JG .

JOURNAL OF SOLID STATE CHEMISTRY, 1996, 127 (01) :82-86

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