物理学报2011，Vol.60Issue(1)：632-637,6.
La0.4Ca0.6MnO3系统中Mn位Fe和Cr掺杂效应的比较性研究
Mn-site Fe/Cr doping effects in charge-ordered antiferromagnetic manganite La0.4 Ca0.6 MnO3
摘要
Abstract
Impurity effects on the stability of a charge-ordered antiferromagnetic state in La0.4Ca0.6MnO3 are investigated by Fe3+/Cr3+ doping on Mn-site.All the samples with different doping concentrations possess the same orthorhombic crystalline structure, and no evident variation in the structure can be seen.Our results reveal that the Fe3+/Cr3+ doping effects on the transport behavior are rather different, although both impurities have the same valance and are commonly antiferromagnetically coupled with other transition metal ions.We assign this remarkable different doping effects to the different electronic structure of the doping cations.关键词
锰氧化物/反铁磁/磁电阻效应Key words
manganites/ antiferromagnetic/ magnetoresistance effect引用本文复制引用
胡妮,刘雍,程莉,石兢,熊锐..La0.4Ca0.6MnO3系统中Mn位Fe和Cr掺杂效应的比较性研究[J].物理学报,2011,60(1):632-637,6.基金项目
国家自然科学基金(批证号:10974148和10534030)资助的课题. （批证号:10974148和10534030）
