论文标题
非中心对称金属中的电子电子散射和电阻率
Electron-Electron Scattering and Resistivity in Non-Centrosymmetric Metals
论文作者
论文摘要
普通金属中电阻的二次低温依赖性取决于在存在液压过程中电子 - 电子散射引起的动量弛豫，并在杂质上散射。在没有反转中心的金属中，电子与晶格的晶格相互作用在电子状态的自旋变性中，并将每个频段分配在两个频段上。使用矩阵动力学方程（包括电子障碍和电子电子内部和频带间散射），发现电子电子碰撞散射速率的温度依赖性。结果表明，在足够清洁的情况下，当带分裂的能量超过电子脉冲散射速率时，但同时它比费米能量小得多，平方的低温依赖性的电阻率仍然有效。
The quadratic low-temperature dependence of resistance in ordinary metals is determined by the momentum relaxation due to electron-electron scattering in the presence Umklapp processes and scattering on impurities. In metals without inversion center spin-orbit interaction of electrons with crystal lattice lifts spin degeneracy of electron states and splits each band on two bands. The temperature dependence of electron-electron collisions scattering rate is found using the matrix kinetic equation including the electron-impurity and electron-electron intra and inter band scattering. It is shown that in clean enough case when the energy of band splitting exceeds the electron-impurity scattering rate but at the same time it is much smaller than the Fermi energy the square low-temperature dependence of resistivity is still valid.
