SPIN-ORIENTATION PHASE-TRANSITIONS IN ND2CUO4 - A COMPOUND WITH NONCOLLINEAR MAGNETIC-STRUCTURE

被引：39
|
作者：
CHERNY, AS
KHATSKO, EN
CHOUTEAU, G
LOUIS, JM
STEPANOV, AA
WYDER, P
BARILO, SN
ZHIGUNOV, DI
机构：
[1] CNRS,SERV NATL CHAMPS INTENSES,F-38042 GRENOBLE,FRANCE
[2] MAX PLANCK INST SOLID STATE RES,HIGH FIELD MAGNET LAB,F-38042 GRENOBLE,FRANCE
[3] ACAD SCI BESSR,INST PHYS SOLIDS & SEMICOND,MINSK 220726,BELORUSSIA,USSR
来源：
PHYSICAL REVIEW B | 1992年 / 45卷 / 21期
关键词：
D O I：
10.1103/PhysRevB.45.12600
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report magnetization measurements of Nd2CuO4 single crystals in the temperature range 0.5-4.2 K in static and pulsed magnetic fields. Two spin-orientation phase transitions, one of the first order (H(c1) = 4.4 T, H parallel-to [100]) and another one of the second order (H(c2) = 0.75 T, H parallel-to [110]), were observed at 0.7 K for different field orientation. This allows us to conclude that at low temperatures the magnetic moments of the Nd ions (and most probably of the Cu ions) order in the antiferromagnetic noncollinear crosslike structure. In the pulsed-magnetic-field experiments we have found a strong magnetocaloric effect in Nd2CuO4.
引用
收藏
页码：12600 / 12603
页数：4
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