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Metastable structure and properties of (La0.73Bi0.27)(0.67)Ca0.33MnO3

机译:(La0.73Bi0.27)(0.67)Ca0.33MnO3的亚稳结构和性质

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The electrical transport and magnetic properties of high Bi doped (La0.73Bi0.27)(0.67)Ca0.33MnO3 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)(0.67) Ca0.33MnO3. The hysteresis and enhanced magnetoresistance are discussed based on an inhomogeneous metastable structure related to the Bi dopant. (c) 2005 Elsevier Ltd. All rights reserved.
机译:研究了高Bi掺杂(La0.73Bi0.27)(0.67)Ca0.33MnO3在温度和磁场范围为10至300 K和0至3 T下的电输运和磁性能。重要的温度和磁场磁滞为在电阻率和磁化强度测量中都观察到。同时,在(La0.73Bi0.27)(0.67)Ca0.33MnO3中,在较宽的温度范围内可获得增强的磁阻效应。基于与Bi掺杂有关的非均匀亚稳态结构,讨论了磁滞和增强的磁阻。 (c)2005 Elsevier Ltd.保留所有权利。

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