Magnetic and NMR studies of lanthanum perovskite manganites

被引:13
作者
Gubkin, MK [1 ]
Khimich, TA [1 ]
Kleparskaya, EV [1 ]
Perekalina, TM [1 ]
Zalessky, AV [1 ]
机构
[1] RUSSIAN ACAD SCI,INST CRYSTALLOG,MOSCOW 117333,RUSSIA
关键词
ferromagnetic semiconductors; LaMnO3; La-NMR; local fields; magnetization;
D O I
10.1016/0304-8853(95)00614-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The temperature behaviour of the local magnetic fields at La-139 nuclei in various ferromagnetic LaMnO3-based compounds has been studied. The results are compared with magnetization and rf magnetic susceptibility measurements of the same samples. A qualitative correlation has been found: the greater the degree of spatially nonuniform magnetic ordering, the higher are the values of the local field and the Curie temperature. The interpretation is based on the assumption of spatially nonuniform magnetic order in the samples.
引用
收藏
页码:351 / 354
页数:4
相关论文
共 10 条
[1]   STRUCTURAL PHASE-TRANSITIONS IN THE LAMNO3+LAMBDA SYSTEM [J].
BOGUSH, AK ;
PAVLOV, VI ;
BALYKO, LV .
CRYSTAL RESEARCH AND TECHNOLOGY, 1983, 18 (05) :589-598
[2]  
GUBKIN MK, 1993, FIZ TVERD TELA+, V35, P1443
[3]  
GUBKIN MK, 1994, PISMA ESKP TEOR FIZ, V60, P56
[4]  
KRUPICKA S, 1973, PHYSIK FERRITE VERVA
[5]   QUANTUM-THEORY OF DOUBLE EXCHANGE .1. [J].
KUBO, K ;
OHATA, N .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1972, 33 (01) :21-+
[6]   SELF-TRAPPED STATES OF CHARGE-CARRIERS IN MAGNETIC SEMICONDUCTORS [J].
NAGAEV, EL .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 110 (1-2) :39-60
[7]  
NAGAEV EL, 1979, PHYSICS MAGNETIC SEM, P388
[8]  
TROYANCHUK IO, 1992, ZH EKSP TEOR FIZ+, V102, P251
[9]   NEUTRON DIFFRACTION STUDY OF THE MAGNETIC PROPERTIES OF THE SERIES OF PEROVSKITE-TYPE COMPOUNDS [(1-X)LA,XCA]MNO3 [J].
WOLLAN, EO ;
KOEHLER, WC .
PHYSICAL REVIEW, 1955, 100 (02) :545-563
[10]   INTERACTION BETWEEN THE D-SHELLS IN THE TRANSITION METALS .2. FERROMAGNETIC COMPOUNDS OF MANGANESE WITH PEROVSKITE STRUCTURE [J].
ZENER, C .
PHYSICAL REVIEW, 1951, 82 (03) :403-405