Colossal magnetoresistance of polycrystalline (La0.7Tb0.3)(2/3)Ca1/3MnO3 at low drive field
- Wang, JH
- Chen, TY
- Wu, JH
- Dai, DS
- Nie, JC
- Zhao, BR
DOIAbstract
The magnetic and electric properties of polycrystalline (La0.7Tb0.3)(2/3) Ca1/3MnO3 were investigated. A spin glass-paramagnetic transition and metal-insulator transition were observed near 45 K, and there exists continuous volume change in the range of measured temperature. At 60 K, a large anisotropic 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.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000082288500019&De...
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