Low temperature magnetoresistive effects and coulomb blockade in La<sub>0.7</sub>Ca<sub>0.3</sub>MnO<sub>3</sub>nanoparticles synthesis by auto-Ignition method
Low temperature magnetoresistive effects and coulomb blockade in La<sub>0.7</sub>Ca<sub>0.3</sub>MnO<sub>3</sub>nanoparticles synthesis by auto-Ignition method作者机构：不详
出 版 物：《Natural Science》 (自然科学期刊（英文）)
年 卷 期：2011年第3卷第6期
页 面：496-501页
学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题：CMR (Colossal Magnetoresistance) CB (Coulomb Blockade)
摘 要：Electrical transport properties of the La0.7Ca0.3MnO3nanoparticles have been inves-tigated in the temperature range 300 to 9 K as a function of magnetic field. Samples were pre-pared by auto-ignition method. In low tempera-ture regime from 40 to 9 K, an increase in the resistivity has been observed. This effect is found to decrease as magnetic field is increased. It is assumed that these effects are due to the magnetic contacts between the nanoparticles.
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