Colossal magnetoresistance of polycrystalline (La0.7Tb0.3)2/3Ca1/3MnO3 at low drive field

Jing Hua Wang, Ting Yong Chen, Jian Hua Wu, Dao Sheng Dai, Jia Cai Nei, Bai Ru Zhao

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The magnetic and electric properties of polycrystalline (La0.7Tb0.3)2/3Ca1/3MnO3 were investigated. A spin glass-paramagnetic transition and metal-insulator transition were observed near 45K, and there exists continuous volume change in the range of measured temperature. At 60 K, a large aniso tropic magnetostriction and a volume magnetostriction correspond to an isotropic colossal magnetoresistance (CMR) with the magnitude of more than 40% at an applied field of ±0.1 T. Our results demonstrate that the transition is of second-order in nature and CMR could be caused by spin-charge coupling in this compound.

Original languageEnglish (US)
Pages (from-to)597-599
Number of pages3
JournalChinese Physics Letters
Volume16
Issue number8
DOIs
StatePublished - Dec 1 1999

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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