LARGE MAGNETORESISTANCE IN LA-CA-MN-O FILMS

被引：8

作者：

CHEN, LH

JIN, S

TIEFEL, TH

RAMESH, R

SCHURIG, D

机构：

[1] AT&T BELL LABS,MURRAY HILL,NJ 07974

[2] UNIV MARYLAND,COLLEGE PK,MD 20742

[3] UNIV CALIF SAN DIEGO,LA JOLLA,CA 92093

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1995年 / 31卷 / 06期

关键词：

D O I：

10.1109/20.489814

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A very large magnetoresistance value in excess of 10(6)% has been obtained at 110K, H = 6T in La-Ca-Mn-O thin films epitaxially grown on LaAlO3 substrates by pulsed laser deposition The as-deposited film exhibits a substantial magnetoresistance value of 39,000%, which is further improved by heat treatment. A strong dependence of the magnetoresistance on film thickness was observed, with the value reduced by orders of magnitude when the film is made thicker than similar to 2000 Angstrom. This behavior is interpreted in terms of lattice strain in the La-Ca-Mn-O films.

引用

收藏

页码：3912 / 3914

页数：3

相关论文

共 11 条

[1] EFFECTS OF DOUBLE EXCHANGE IN MAGNETIC CRYSTALS [J].

DEGENNES, PG .

PHYSICAL REVIEW, 1960, 118 (01) :141-154

[2] THEORY OF THE ROLE OF COVALENCE IN THE PEROVSKITE-TYPE MANGANITES [LA,M(II)]MNO3 [J].

GOODENOUGH, JB .

PHYSICAL REVIEW, 1955, 100 (02) :564-573

[3] LARGE MAGNETORESISTANCE IN POLYCRYSTALLINE LA-Y-CA-MN-O [J].

JIN, S ;

OBRYAN, HM ;

TIEFEL, TH ;

MCCORMACK, M ;

RHODES, WW .

APPLIED PHYSICS LETTERS, 1995, 66 (03) :382-384

[4] 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

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

JONKER, GH ;

VANSANTEN, JH .

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

[6]

KHAHARA K, 1990, APPL PHYS LETT, V63

[7] MAGNETORESISTANCE MEASUREMENTS ON THE MAGNETIC SEMICONDUCTOR ND0.5PB0.5MNO3 [J].

KUSTERS, RM ;

SINGLETON, J ;

KEEN, DA ;

MCGREEVY, R ;

HAYES, W .

PHYSICA B, 1989, 155 (1-3) :362-365

[8] 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

[9] STUDIES OF IONIC FERROMAGNET (LAPB)MNO3 .5. ELECTRIC TRANSPORT AND FERROMAGNETIC PROPERTIES [J].

SEARLE, CW ;

WANG, ST .

CANADIAN JOURNAL OF PHYSICS, 1970, 48 (17) :2023-&

[10] GIANT NEGATIVE MAGNETORESISTANCE IN PEROVSKITELIKE LA2/3BA1/3MNOX FERROMAGNETIC-FILMS [J].

VONHELMOLT, R ;

WECKER, J ;

HOLZAPFEL, B ;

SCHULTZ, L ;

SAMWER, K .

PHYSICAL REVIEW LETTERS, 1993, 71 (14) :2331-2333