Quantized conductance in an atom-size bridge made from magnetic materials
Quantized conductance in an atom-size bridge made from magnetic materials
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由磁性材料制成的原子尺寸桥的量子化电导
DOI：
10.1063/1.1287780
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发表时间：
2000
影响因子：
3.2
通讯作者：
A. Okiji
中科院分区：
文献类型：
--
作者：
Y. Morigaki;H. Nakanishi;H. Kasai;A. Okiji
借助哈伯德模型，并考虑轨道简并，我们研究了原子大小桥的磁性如何影响电子通过它们的量子输运。在Hartree-Fock近似下，我们计算了原子大小桥的电子系统在长度上拉伸时的相应总能量。我们的数值计算结果表明，拉伸原子大小的桥诱导其磁性状态的变化，从顺磁性到铁磁性，反之亦然。此外，相应的原子尺寸的桥的电导变化被证明。
With the aid of the Hubbard model, and considering orbital degeneracies, we investigate how the magnetic properties of atom-size bridges affect the quantum transport of electrons through them. Within the Hartree–Fock approximation, we calculate the corresponding total energy of the electron system of the atom-size bridge as it is stretched in length. Our numerical results show that stretching the atom-size bridge induces changes in its magnetic state, from paramagnetic to ferromagnetic, and also vice versa. Furthermore, the corresponding conductance variation of the atom-size bridge is demonstrated.
影响因子：
64.8
作者：
Ohnishi, H;Kondo, Y;Takayanagi, K
通讯作者：
Takayanagi, K