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

doi:10.1088/0256-307X/16/8/019

Colossal magnetoresistance of polycrystalline (La_0.7Tb_0.3)_2/3Ca_1/3MnO₃ 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 journal › Article › peer-review

2 Scopus citations

Abstract

The magnetic and electric properties of polycrystalline (La_0.7Tb_0.3)_2/3Ca_1/3MnO₃ 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 language	English (US)
Pages (from-to)	597-599
Number of pages	3
Journal	Chinese Physics Letters
Volume	16
Issue number	8
DOIs	https://doi.org/10.1088/0256-307X/16/8/019
State	Published - 1999
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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

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.",

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T1 - Colossal magnetoresistance of polycrystalline (La0.7Tb0.3)2/3Ca1/3MnO3 at low drive field

AU - Wang, Jing Hua

AU - Chen, Ting Yong

AU - Wu, Jian Hua

AU - Dai, Dao Sheng

AU - Nei, Jia Cai

AU - Zhao, Bai Ru

PY - 1999

Y1 - 1999

N2 - 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.

AB - 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.

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JO - Chinese Physics Letters

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Colossal magnetoresistance of polycrystalline (La_0.7Tb_0.3)_2/3Ca_1/3MnO₃ at low drive field

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