Are ''single phase'' manganite samples truly homogeneous? A magnetic resonance study

被引:60
作者
Dominguez, M [1 ]
Lofland, SE [1 ]
Bhagat, SM [1 ]
Raychaudhuri, AK [1 ]
Ju, HL [1 ]
Venkatesan, T [1 ]
Greene, RL [1 ]
机构
[1] UNIV MARYLAND,CTR SUPERCONDUCT RES,COLLEGE PK,MD 20742
关键词
magnetically ordered materials;
D O I
10.1016/0038-1098(95)00632-X
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Ferromagnetic resonance measurements on single phase samples of manganites, which exhibit giant magnetoresistance, reveal considerable inhomogeneity - the transition temperature as well as the saturation magnetization have sizable spreads.
引用
收藏
页码:193 / 196
页数:4
相关论文
共 14 条
[1]  
Ashcroft N.W., 1976, Solid state physics Holt, Rinehart and Winston, Vfirst
[2]   FREQUENCY-DEPENDENCE OF FERROMAGNETIC-RESONANCE IN AMORPHOUS MAGNETS - FERROMAGNETIC AND REENTRANT ALLOYS [J].
BHAGAT, SM ;
WEBB, DJ ;
MANHEIMER, MA .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1985, 53 (03) :209-220
[3]  
BHAGAT SM, 1974, TECHNIQUES METAL R 2, V6, pCH8
[4]  
DOMINGUEZ M, IN PRESS
[5]   COLOSSAL MAGNETORESISTANCE IN LA-CA-MN-O FERROMAGNETIC THIN-FILMS (INVITED) [J].
JIN, S ;
MCCORMACK, M ;
TIEFEL, TH ;
RAMESH, R .
JOURNAL OF APPLIED PHYSICS, 1994, 76 (10) :6929-6933
[6]   DEPENDENCE OF GIANT MAGNETORESISTANCE ON OXYGEN STOICHIOMETRY AND MAGNETIZATION IN POLYCRYSTALLINE LA0.67BA0.33MNOZ [J].
JU, HL ;
GOPALAKRISHNAN, J ;
PENG, JL ;
LI, Q ;
XIONG, GC ;
VENKATESAN, T ;
GREENE, RL .
PHYSICAL REVIEW B, 1995, 51 (09) :6143-6146
[7]  
LOFLAND S, IN PRESS
[8]   GIANT MAGNETORESISTANCE IN BULK SAMPLES OF LAMNO3 WITH VARYING MN4+ CONTENT [J].
MAHENDIRAN, R ;
MAHESH, R ;
RAYCHAUDHURI, AK ;
RAO, CNR .
PRAMANA-JOURNAL OF PHYSICS, 1995, 44 (04) :L393-L396
[9]  
MORRISH AH, 1970, FERRITES P INT C, V574
[10]  
RAMACHANDRAN JS, IN PRESS SOL ST COMM