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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

Nb3Te4单晶输运性质及磁化率测量

窦敖川; 刘治国+   

  1. 镇江师范专科学校物理系;镇江 212003; +南京大学固体微结构国家重点实验室; 南京212008
  • 收稿日期:1996-03-22 修回日期:1996-06-25 出版日期:1997-06-20 网络出版日期:1997-06-20

Measurements of the Transport and the Magnetic Susceptibility of Nb3Te4 Single Crystal

DOU Aochuan; LIU Zhiguo+   

  1. Zhenjiang Teachers College Zhenjiang 212003 China; +Laboratory of Solid State Microstructure of Nanjing University Nanjing 210008 China
  • Received:1996-03-22 Revised:1996-06-25 Published:1997-06-20 Online:1997-06-20

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877

摘要： 测量了Nb3Te4单晶在不同磁场及电场作用下R（T）/（300K）～T曲线，发现磁场对高温Peierls相变温度的回滞有“压缩”作用，电场对高温Peierls相变温度的回滞有“加宽”作用．另外，测量磁化率时还发现，T＜50K时，晶体出现抗磁信号．

关键词: Peierls相交, 电荷密度波, 回滞, 磁化率

Abstract: The temperature dependence of the normalized resistance of Nb3Te4 single crystal was measured finder different magnetic fields and different electric fields around T1=100K. It was found that magnetic fieldssuppress the kystercsis of the phase transition temperature, and electric fields broaden tile hysteresis. Thetemperature dependence of the magnetic susceptibility of Nb3Te4 single crystal showed that antimagnetiesignal occurs below T2=50K.

Key words: peierls phase transition, charge density wave, hysteresis, magnetic susceptibility