Highly sensitive low-temperature low-field colossal magnetoresistance in screen printed La0.63Y0.07Ca0.30MnO3 thick films

被引：4

作者：

Hossain, AKMA ^{[1
]}

Cohen, LF

Berenov, A

Driscoll, JLM

机构：

[1] Bangladesh Univ Engn & Technol, Dept Phys, Dhaka 1000, Bangladesh

[2] Imperial Coll, Blackett Lab, London SW7 2BZ, England

[3] Imperial Coll, Dept Mat, London SW7 2BP, England

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2001年 / 83卷 / 1-3期

关键词：

colossal magnetoresistance; thick film; transition temperature; screen printing; sintering;

D O I：

10.1016/S0921-5107(00)00802-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thick films of La0.63Y0.07Ca0.30MnO3 were fabricated on (100) oriented single crystal LaAlO3 (LAO) and on polycrystalline Al2O3 substrates by a screen printing technique. The films were sintered at 1200 degreesC in air and oxygen atmosphere. All these thick films show a metal-insulator (M-I) transition at T-p1 similar to 220 K. For both substrates, the films sintered in oxygen flow have slightly higher T-p1. The film on polycrystalline Al2O3 sintered in oxygen flow shows 71% magnetoresistance (MR) at 220 K in the presence of an 8 T applied field. The salient feature of the colossal magnetoresistance observed in these thick films is that low-temperature low-field MR is highly sensitive than only Ca doped manganites. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：79 / 83

页数：5

共 13 条

[1] 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

[2] 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

[3] Colossal magnetoresistance in screen printed La0.67Ca0.33MnO3 thick films [J].

Hossain, AKMA ;

Cohen, LF ;

Berenov, A ;

Driscoll, JLM .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2000, 77 (03) :261-267

[4] Influence of oxygen vacancies on magnetoresistance properties of bulk La0.67Ca0.33MnO3-δ [J].

Hossain, AKMA ;

Cohen, LF ;

Kodenkandeth, T ;

MacManus-Driscoll, J ;

Alford, NM .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 195 (01) :31-36

[5]

Hossain AKMA, 1999, J MAGN MAGN MATER, V192, P263, DOI 10.1016/S0304-8853(98)00530-7

[6] 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

[7] THOUSANDFOLD CHANGE IN RESISTIVITY IN MAGNETORESISTIVE LA-CA-MN-O FILMS [J].

JIN, S ;

TIEFEL, TH ;

MCCORMACK, M ;

FASTNACHT, RA ;

RAMESH, R ;

CHEN, LH .

SCIENCE, 1994, 264 (5157) :413-415

[8] FERROMAGNETIC COMPOUNDS OF MANGANESE WITH PEROVSKITE STRUCTURE [J].

JONKER, GH ;

VANSANTEN, JH .

PHYSICA, 1950, 16 (03) :337-349

[9] Low-field magnetoresistive properties of polycrystalline and epitaxial perovskite manganite films [J].

Li, XW ;

Gupta, A ;

Xiao, G ;

Gong, GQ .

APPLIED PHYSICS LETTERS, 1997, 71 (08) :1124-1126

[10]

Mahesh R, 1996, APPL PHYS LETT, V68, P2291, DOI 10.1063/1.116167

← 1 2 →