Suppression of Spin-Orbit Scattering in Strong-Disordered Gold Nanojunctions

摘要

We discovered that spin-orbit scattering in strong-disordered goldnanojunctions is strongly suppressed relative to that in weak-disordered goldthin films. This property is unusual because in weak-disordered films,spin-orbit scattering increases with disorder. Granularity and freezing ofspin-orbit scattering inside the grains explains the suppression of spin-orbitscattering. We propose a generalized Elliot-Yafet relation that applies tostrong-disordered granular regime.