Effect of columnar structures on resistivity behavior of epitaxial La0.8MnO3 thin films -: art. no. 086104

被引：0

作者：

Wang, CC ^{[1
]}

Wang, H ^{[1
]}

Zhu, J ^{[1
]}

机构：

[1] Tsinghua Univ, Sch Mat Sci & Engn, Electron Microscopy Lab, Beijing 100084, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2005年 / 97卷 / 08期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.1865339

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report here studies on the effect of columnar structure on the resistivity behavior of self-doped La0.8MnO3 thin film with single phase and c-axis epitaxy fabricated by pulsed laser deposition. The film exhibits an abnormal resistivity behavior similar to that found in lanthanum-deficient LaMnO3 thin films with mixed (110)/(001) grains or polycrystalline pellets, where the resistivity peak remains almost the same temperature under external fields. This behavior is not expected based on the double exchange theory and is found to result from grain-boundary effect due to the columnar structure in this epitaxial film. (C) 2005 American Institute of Physics.

引用

页数：3

共 25 条

[1] Tailoring of paramagnetic (structurally ordered) nanometric grains separated by ferromagnetic (structurally disordered) grain boundaries:: Isolating grain-boundary magnetic effects -: art. no. 052402 [J].

Amils, X ;

Nogués, J ;

Suriñach, S ;

Muñoz, JS ;

Baró, MD ;

Hernando, A ;

Morniroli, JP .

PHYSICAL REVIEW B, 2001, 63 (05)

[2] Electronic transport properties of (001)/(110) oriented La2/3MnO3-δ thin films [J].

Chen, CC ;

de Lozanne, A .

APPLIED PHYSICS LETTERS, 1998, 73 (26) :3950-3952

[3] Powder magnetoresistance (invited) [J].

Coey, JMD .

JOURNAL OF APPLIED PHYSICS, 1999, 85 (08) :5576-5581

[4] Defect-induced spin disorder and magnetoresistance in single-crystal and polycrystal rare-earth manganite thin films [J].

Evetts, JE ;

Blamire, MG ;

Mathur, ND ;

Isaac, SP ;

Teo, BS ;

Cohen, LF ;

Macmanus-Driscoll, JL .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1998, 356 (1742) :1593-1613

[5] Structure and magnetoresistive properties in La-manganite thin films [J].

Gommert, E ;

Cerva, H ;

Rucki, A ;

vonHelmolt, R ;

Wecker, J ;

Kuhrt, C ;

Samwer, K .

JOURNAL OF APPLIED PHYSICS, 1997, 81 (08) :5496-5498

[6] Physics of grain boundaries in the colossal magnetoresistance manganites [J].

Gross, R ;

Alff, L ;

Büchner, B ;

Freitag, BH ;

Höfener, C ;

Klein, J ;

Lu, YF ;

Mader, W ;

Philipp, JB ;

Rao, MSR ;

Reutler, P ;

Ritter, S ;

Thienhaus, S ;

Uhlenbruck, S ;

Wiedenhorst, B .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 211 (1-3) :150-159

[7] Grain-boundary effects on the magnetoresistance properties of perovskite manganite films [J].

Gupta, A ;

Gong, GQ ;

Xiao, G ;

Duncombe, PR ;

Lecoeur, P ;

Trouilloud, P ;

Wang, YY ;

Dravid, VP ;

Sun, JZ .

PHYSICAL REVIEW B, 1996, 54 (22) :15629-15632

[8] Magnetoresistance in manganite/alumina nanocrystalline composites [J].

Hueso, LE ;

Rivas, J ;

Rivadulla, F ;

López-Quintela, MA .

JOURNAL OF APPLIED PHYSICS, 2001, 89 (03) :1746-1750

[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] Composition and growth-temperature effect on the microstructure of epitaxial La1-xSrxMnO3 (x=0, 0.2) thin films on (001) LaAlO3 [J].

Jiang, JC ;

Meletis, EI ;

Gnanasekar, KI .

JOURNAL OF MATERIALS RESEARCH, 2003, 18 (11) :2556-2561

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