Magnetoresistance in Pr0.65Ba0.05Ca0.3Mn3-delta thin films

被引:16
作者
Kumar, D [1 ]
Singh, RK [1 ]
Lee, CB [1 ]
机构
[1] N CAROLINA AGR & TECH STATE UNIV, DEPT ELECT ENGN, GREENSBORO, NC 27411 USA
关键词
D O I
10.1103/PhysRevB.56.13666
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Interesting magnetotransport behavior has been observed in Pr0.65Ba0.05Ca0.3MnO3-delta films. The films are grown in situ on (100) LaAlO3 substrates using a pulsed-laser-deposition technique. Microstructural characterization carried out on these films has shown that the films are smooth, free from impurity phases, and highly textured. The electrical resistance and magnetoresistance (MR) have been measured in the 10-300 K range in magnetic field up to 5 T using a SQUID magnetometer. With the application of magnetic fields of 0.5 and 5 T, the resistance of the films has been found to drop spectacularly, resulting in the realization of MR ratios (at similar to 60 K) as high as 5.3x10(3) and 5.6x10(8), respectively.
引用
收藏
页码:13666 / 13668
页数:3
相关论文
共 29 条
[1]  
CHAHARA K, 1993, APPL PHYS LETT, V63, P990
[2]   Cation size-temperature phase diagram of the manganites Ln(0.5)Sr(0.5)MnO(3) [J].
Damay, F ;
Maignan, A ;
Martin, C ;
Raveau, B .
JOURNAL OF APPLIED PHYSICS, 1997, 81 (03) :1372-1377
[3]   EFFECTS OF DOUBLE EXCHANGE IN MAGNETIC CRYSTALS [J].
DEGENNES, PG .
PHYSICAL REVIEW, 1960, 118 (01) :141-154
[4]  
Fontcuberta J, 1996, APPL PHYS LETT, V68, P2288, DOI 10.1063/1.116166
[5]   COLOSSAL MAGNETORESISTANCE OF 1,000,000-FOLD MAGNITUDE ACHIEVED IN THE ANTIFERROMAGNETIC PHASE OF LA1-XCAXMNO3 [J].
GONG, GQ ;
CANEDY, C ;
XIAO, G ;
SUN, JZ ;
GUPTA, A ;
GALLAGHER, WJ .
APPLIED PHYSICS LETTERS, 1995, 67 (12) :1783-1785
[6]  
Goodenough J., 1971, PROGR SOLID STATE CH, V5, P145, DOI DOI 10.1016/0079-6786(71)90018-5
[7]   GROWTH AND GIANT MAGNETORESISTANCE PROPERTIES OF LA-DEFICIENT LAXMNO3-DELTA (0.67-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-1) FILMS [J].
GUPTA, A ;
MCGUIRE, TR ;
DUNCOMBE, PR ;
RUPP, M ;
SUN, JZ ;
GALLAGHER, WJ ;
XIAO, G .
APPLIED PHYSICS LETTERS, 1995, 67 (23) :3494-3496
[8]   TRANSPORT-MAGNETISM CORRELATIONS IN THE FERROMAGNETIC OXIDE LA0.7CA0.3MNO3 [J].
HUNDLEY, MF ;
HAWLEY, M ;
HEFFNER, RH ;
JIA, QX ;
NEUMEIER, JJ ;
TESMER, J ;
THOMPSON, JD ;
WU, XD .
APPLIED PHYSICS LETTERS, 1995, 67 (06) :860-862
[9]   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
[10]   STRUCTURAL AND MAGNETIZATION STUDY OF PR1-XCAXMNO3 [J].
JIRAK, Z ;
KRUPICKA, S ;
NEKVASIL, V ;
POLLERT, E ;
VILLENEUVE, G ;
ZOUNOVA, F .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1980, 15-8 (JAN-) :519-520