Author/Authors :
Xia، نويسنده , , Z.C. and Wang، نويسنده , , Y. Z. Zeng، نويسنده , , H.R. and Zhou، نويسنده , , Q.X. and Hu، نويسنده , , M.T. and Dong، نويسنده , , B. and Liu، نويسنده , , G. and Feng، نويسنده , , X.N. and Liu، نويسنده , , L. and Yuan، نويسنده , , S.L. and Tang، نويسنده , , C.Q.، نويسنده ,
Abstract :
The electrical transport and magnetic properties of high Bi doped (La0.73Bi0.27)0.67Ca0.33MnO3 are studied at the temperature and magnetic field ranges from 10 to 300 K and 0 to 3 T. Significant temperature and magnetic field hystereses are observed in both resistivity and magnetization measurements. Meanwhile, an enhanced magnetoresistance effect, within a wide temperature window, is obtained in the (La0.73Bi0.27)0.67Ca0.33MnO3. The hysteresis and enhanced magnetoresistance are discussed based on an inhomogeneous metastable structure related to the Bi dopant.
