Fig. 4: Scaling of resisitivity and electron-phonon coupling strength. | Nature Communications

Fig. 4: Scaling of resisitivity and electron-phonon coupling strength.

From: Engineering ultra-strong electron-phonon coupling and nonclassical electron transport in crystalline gold with nanoscale interfaces

Fig. 4

Universality in the T-dependent component of ρ for T > ΘD~150 K (left panel) for all F with T scaled with the corresponding EPC parameter λ estimated from point contact spectroscopy measurements (right panel). The dashed line in the right panel indicates the ‘Planckian’ resistivity (=2mπkBλT/(ℏne2)). The solid line is a fit to (ρ − ρ0) according to the two-component parallel channel model given by Eq. [(2)] (see text).

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