Interface Thermal Resistance between Dissimilar Anharmonic Lattices
Interface Thermal Resistance between Dissimilar Anharmonic Lattices
We study interface thermal resistance (ITR) in a system consisting of two dissimilar anharmonic lattices exemplified by the Fermi-Pasta-Ulam and Frenkel-Kontorova models. It is found that the ITR is asymmetric; namely, it depends on how the temperature gradient is applied. The dependence of the ITR on the coupling constant, temperature, …