Phase transitions in L1-xCaxMnO3 (L=Pr,Nd) probed by thermopower and resistivity measurements

被引：30

作者：

Fisher, B ^{[1
]}

Patlagan, L ^{[1
]}

Reisner, GM ^{[1
]}

Knizhnik, A ^{[1
]}

机构：

[1] TECHNION ISRAEL INST TECHNOL,CROWN CTR SUPERCONDUCT,IL-32000 HAIFA,ISRAEL

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.55.9227

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The title materials with x = 1/4, 1/3, and 1/2, which are nonmetallic in a zero applied magnetic field, have a complex phase diagram that shows the existence of several charge and magnetically ordered states. The changes in the electronic structure occurring at the transitions between the various phases were probed using the temperature dependence of the absolute thermopower complemented by that of the local activation energy of the zero-field resistivity. The results for these Ca-doped compounds have been compared with those for the corresponding Sr-doped compounds, which have metalliclike ferromagnetic states in their phase diagram.

引用

页码：9227 / 9230

页数：4

共 23 条

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