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

Spin-dependent electroresistance in Nd0.67Sr0.33MnOy(y<3.0)

Yang Chang-Ping Chen Shun-Sheng Dai Qi Guo Ding-He Wang Hao

Spin-dependent electroresistance in Nd0.67Sr0.33MnOy(y<3.0)

Yang Chang-Ping, Chen Shun-Sheng, Dai Qi, Guo Ding-He, Wang Hao
PDF
Get Citation

(PLEASE TRANSLATE TO ENGLISH

BY GOOGLE TRANSLATE IF NEEDED.)

Metrics
  • Abstract views:  3588
  • PDF Downloads:  998
  • Cited By: 0
Publishing process
  • Received Date:  14 November 2006
  • Accepted Date:  17 January 2007
  • Published Online:  05 April 2007

Spin-dependent electroresistance in Nd0.67Sr0.33MnOy(y<3.0)

  • 1. 湖北大学物理学与电子技术学院,铁电压电材料与器件湖北省重点实验室,武汉 430062

Abstract: Spin-dependent electroresistance (ER) was observed in polycrystalline Nd0.67Sr0.33MnOy (y=3.00, 2.95, 2.90, 2.85, 2.80) samples, which were synthesized by solid-state reaction. For the sample with stoichiometry y=3.0, the I-V characteristic shows ohmic linearity over the whole range of measuring temperature. For the samples with oxygen-deficiency, i.e. yI-V curve is linear when temperature is above a certain point, similar to the case of y=3.0. However, the electric resistance strongly depends on load current, decreasing remarkably with increasing current load when temperature falls below the critical temperature. For the sample of y=2.85, the ER ratio reaches 80% when the load current increases from 1 to 30 μA. The spin-dependent ER effect should be strongly related with the oxygen-deficiency and grain boundary effect.

Catalog

    /

    返回文章
    返回