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Temperature dependence of side-jump contribution to anomalous and spin Hall conductivities | | Cong Xiao
; Yi Liu
; Zhe Yuan
; Shengyuan A. Yang
; Qian Niu
; | | Date: |
8 Nov 2018 | | Abstract: | The side-jump contribution to anomalous/spin Hall conductivities is
conventionally understood to be a constant independent of both the scattering
strength and density of scatterers, even though it depends on the type of
scatterer. In this work, we reveal that the side-jump contribution due to
electron-phonon scattering, the primary source of scattering in clean samples,
can in fact acquire substantial temperature dependence when the temperature
drops below the high-temperature classical regime of equipartition law. We
demonstrate this phenomenon in an analytic model, supplemented by a
first-principles calculation for pure Pt. Experimentally accessible high-purity
Pt is proposed to be suitable for observing the predicted prominent variation
of the spin Hall conductivity below 80 K. | | Source: | arXiv, 1811.3229 | | Services: | Forum | Review | PDF | Favorites | |
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