Search

Article

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

Transport properties of colossal magnetoresistance of Pr2/3Sr1/3MnO3 film

Liu Wei Chen Jin-Ping Guan Wei Xiong Guang-Cheng Yan Shou-Sheng

Transport properties of colossal magnetoresistance of Pr2/3Sr1/3MnO3 film

Liu Wei, Chen Jin-Ping, Guan Wei, Xiong Guang-Cheng, Yan Shou-Sheng
PDF
Get Citation

(PLEASE TRANSLATE TO ENGLISH

BY GOOGLE TRANSLATE IF NEEDED.)

Metrics
  • Abstract views:  3089
  • PDF Downloads:  545
  • Cited By: 0
Publishing process
  • Received Date:  15 April 2003
  • Accepted Date:  25 June 2003
  • Published Online:  05 January 2004

Transport properties of colossal magnetoresistance of Pr2/3Sr1/3MnO3 film

  • 1. 北京大学物理学院,北京 100871

Abstract: Measurements of the thermopower were carried out, from room temperature down to 10K, on the colossal magnetoresistance (CMR) thin films of the Pr2/3Sr1/3MnO3(PSMO) sample, which showed a dramatic reduction in the 1/f noise spectrum reported previously. At low temperatures, the thermopower is negative and shows metallic diffusion behavior of linear temperature dependence. As the temperature goes up near 150K, the thermopower reduces dramatically to show the behavior of 1/T temperature dependence,which is consistent with the prediction of the small polaron model for the high temperature phase of CMR materials. Compared with the temperature dependence of the resistance and the property of the 1/f noise near the phase transition peak, the conclusion can be reached that the percolation-typed phase separation exists in the phase transition temperature region.

Catalog

    /

    返回文章
    返回