Giant negative magnetoresistance reflecting molecular symmetry in dicyano(phthalocyaninato)iron compounds
Giant negative magnetoresistance reflecting molecular symmetry in dicyano(phthalocyaninato)iron compounds
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DOI：
10.1143/jpsj.75.033703
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发表时间：
2006-03-01
影响因子：
1.7
通讯作者：
Inabe, T
中科院分区：
文献类型：
--
作者：
Hanasaki, N;Matsuda, M;Inabe, T
含Fe（Pc）（CN）（2）二氰基酞菁铁分子的材料由于电导和局域磁矩的相互作用而表现出巨负磁电阻效应。在磁场下，电阻比零场电阻小两个数量级。磁电阻的磁场角依赖性反映了Fe（Pc）（CN）（2）分子的对称性。从标度关系出发，讨论了磁电阻效应与分子自旋涨落的关系。
Materials containing Fe(Pc)(CN)(2) dicyano(phthalocyaninato)iron molecules show a giant negative magnetoresistance from the interaction between the conduction and the local moment. Under a magnetic field, the resistance becomes two orders of magnitude smaller than the zero-field resistance. The magnetic-field-angle dependence of the magnetoresistance reflects the symmetry of the Fe(Pc)(CN)(2) molecule. We discuss, according to the scaling relation, the correlation between the magnetoresistance and the molecular spin fluctuation.