Determining Parameters of the Dual-Phase-Lag Model of Heat Flow

Abstract

The paper presents a concept of experimental determination of parameters of the Dual-Phase-Lag (DPL) model of heat flow in solids at the nanoscale. A custom chip manufactured for this purpose has been described. The possible measurement methods have been presented, based on high-frequency heating and observation of the thermal response through the resulting resistance variations. Analytical solutions to thermal models have been obtained to select the approach where the greatest differences between the DPL model and the traditional Fourier's equation should be observed.