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中国物理学会期刊

自旋玻璃系统的量子输运方程

CSTR: 32037.14.aps.43.1024

QUANTUM TRANSPORT EQUATION FOR SPIN GLASS SYSTEMS

CSTR: 32037.14.aps.43.1024
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  • 通过引入电子的弹性散射和非弹性散射的自能和相应的物理格林函数,将磁场中的Mahan-H?nsch量子输运方程推广到自旋玻璃系统中,在电子的近弹性散射近似下,求解了s-d交换相互作用导致的自旋玻璃态霍耳电导;获得了电阻率与自旋玻璃Edwards-Anderson(EA)序参数和局域磁化率之间的关系;讨论了自旋玻璃热电势和特征温度。

     

    The static Mahan-H?nsch quantum transport equation in applied magnetic fields is extended to spin glass systems through introducing physical self-energies of elastic and inelastic scattering. In the quasi-elastic scattering limit, the Hall conductivity for spin glass model with the s-d exchange interaction between electrons and localized moments is evaluated by using this equation. The relation between resistivity and the Edwards-Anderson (EA) spin glass parameter and local susceptibility is obtained. Finally, thermoelectric power of spin glass::s and some interesting characteristic temperatures are discussed.

     

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