Giant negative magnetoresistance in quasi-one-dimensional conductor TPP[Fe(Pc)(CN)2]2:: Interplay between local moments and one-dimensional conduction electrons
Giant negative magnetoresistance in quasi-one-dimensional conductor TPP[Fe(Pc)(CN)2]2:: Interplay between local moments and one-dimensional conduction electrons
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DOI：
10.1103/physrevb.62.5839
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发表时间：
2000-09-01
影响因子：
3.7
通讯作者：
Inabe, T
中科院分区：
文献类型：
--
作者：
Hanasaki, N;Tajima, H;Inabe, T
我们在一维导体TPP[Fe（Pc）（CN）（2）]（2）中发现了低于50 K的巨负磁电阻效应。在垂直于一维轴的磁场中，电阻的减小比平行于轴的磁场中的电阻的减小大。磁化率表现为各向异性居里-外斯行为。实验结果表明了一维电子系统与局域磁矩之间的相互作用。提出了巨负磁电阻的产生是由于磁场作用下的局域磁矩减少了巡游电子的自旋散射。
We have found giant negative magnetoresistance in the one-dimensional conductor TPP[Fe(Pc)(CN)(2)](2) below 50 K. The reduction of the resistance is larger in the field perpendicular to the one-dimensional axis than parallel to the axis. The magnetic susceptibility shows anisotropic Curie-Weiss behavior. The experimental results suggest the interaction between the one-dimensional electron system and the local moments. The reduction of the spin scattering of the itinerant electrons by the local moments under the field is proposed as the origin of the giant negative magnetoresistance.