Metamagnetic transition in Na0.85CoO2 single crystals -: art. no. 187203

被引：67

作者：

Luo, JL

Wang, NL

Liu, GT

Wu, D

Jing, XN

Hu, F

Xiang, T

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China

[3] Chinese Acad Sci, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 18期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1103/PhysRevLett.93.187203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the magnetization, specific heat, and transport measurements of a high quality Na0.85CoO2 single crystal in applied magnetic fields up to 14 T. At high temperatures, the system is in a paramagnetic phase. It undergoes a magnetic phase transition below similar to20 K. For the field H parallel to c, the measurement data of magnetization, specific heat, and magnetoresistance reveal a metamagnetic transition from an antiferromagnetic state to a quasiferromagnetic state at about 8 T at low temperatures. However, no transition is observed in the magnetization measurements up to 14 T for H perpendicular to c. The low temperature magnetic phase diagram of Na0.85CoO2 is determined.

引用

页码：187203 / 1

页数：4

共 29 条

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