Magnetic and electric properties of La1-δMnO3

被引：87

作者：

de Brion, S

Ciorcas, F

Chouteau, G

Lejay, P

Radaelli, P

Chaillout, C

机构：

[1] FKF, MPI, Grenoble High Magnet Field Lab, F-38042 Grenoble 9, France

[2] CNRS, F-38042 Grenoble 9, France

[3] CNRS, CRTBT, F-38042 Grenoble 9, France

[4] ILL Grenoble, F-38042 Grenoble 9, France

[5] CNRS, Lab Cristallog, F-38042 Grenoble 9, France

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.59.1304

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic phase diagram of La1-deltaMnO3 powdered samples has been studied as a function of delta in the low doping range (6<0.1).La0.97MnO3 has a canted magnetic structure at low temperature (theta similar or equal to 130 degrees). Above T-c=118 K, it becomes a paramagnet with a huge effective magnetic moment mu(eff)=60 mu(B), reflecting the presence of magnetoelastic polarons which are not affected by the magnetic field (up to 20 T) or the temperature 1.2T(c)<T<2.5T(c). When delta is increased to delta=0.09, the system becomes fully ferromagnetic below 170 K but remains insulating down to the lowest temperature. [S0163-1829(99)16101-0].

引用

页码：1304 / 1310

页数：7

共 33 条

[1] Effect of disorder on the magnetic and transport properties of La1-xSrxMnO3 [J].