论文标题
在有限温度下计算界面传输参数：非磁性接口
Calculating interface transport parameters at finite temperatures: Nonmagnetic interfaces
论文作者
论文摘要
第一原理散射计算用于研究通过扩散的非磁金属之间的界面进行自旋转运，其中对称性降低导致自旋轨道耦合（SOC）的效果增强，并导致通过界面经过的旋转电流的不连续性。从针对非磁性双层计算的电导率和局部自旋电流中，我们提取室温接口电阻的值$ r _ {\ rm i} $，旋转存储器损失参数$δ$以及接口spin spin spin $θ_ {\ rm i} $ for nonnonmagnetic au $ $ $ $ $ $ $ $ $ $ pd au $ |有限温度。发现所有三个参数的实质值都对涉及非磁性间隔和封盖层的实验产生重要影响。接口参数的温度依赖性是针对AU $ | $ pt的。
First-principles scattering calculations are used to investigate spin transport through interfaces between diffusive nonmagnetic metals where the symmetry lowering leads to an enhancement of the effect of spin-orbit coupling (SOC) and to a discontinuity of the spin currents passing through the interfaces. From the conductance and local spin currents calculated for nonmagnetic bilayers, we extract values of the room temperature interface resistance $R_{\rm I}$, of the spin memory loss parameter $δ$ and of the interface spin Hall angle $Θ_{\rm I}$ for nonmagnetic Au$|$Pt and Au$|$Pd interfaces using a frozen thermal disorder scheme to model finite temperatures. Substantial values of all three parameters are found with important consequences for experiments involving nonmagnetic spacer and capping layers. The temperature dependence of the interface parameters is determined for Au$|$Pt.
