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

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

Research output: Contribution to journalArticle

2 Citations (Scopus)

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 - 1999
Externally publishedYes

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magnetostriction
tropical regions
spin glass
insulators
magnetic properties
metals
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Colossal magnetoresistance of polycrystalline (La0.7Tb0.3)2/3Ca1/3MnO3 at low drive field. / Wang, Jing Hua; Chen, Tingyong; Wu, Jian Hua; Dai, Dao Sheng; Nei, Jia Cai; Zhao, Bai Ru.

In: Chinese Physics Letters, Vol. 16, No. 8, 1999, p. 597-599.

Research output: Contribution to journalArticle

Wang, Jing Hua ; Chen, Tingyong ; Wu, Jian Hua ; Dai, Dao Sheng ; Nei, Jia Cai ; Zhao, Bai Ru. / Colossal magnetoresistance of polycrystalline (La0.7Tb0.3)2/3Ca1/3MnO3 at low drive field. In: Chinese Physics Letters. 1999 ; Vol. 16, No. 8. pp. 597-599.
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