Non-local thermal transport modeling using the thermal distributor
Abstract
Thermal transport in a quasi-ballistic regime is determined not only by the local temperature T(r), or its gradient ∇ T(r), but also by temperature distribution at neighboring points. For an accurate description of non-local effects on thermal transport, we employ the thermal distributor, (r,r'), which provides the temperature response of the system at point r to the heat input at point r'. We determine the thermal distributors from the linearized Peierls-Boltzmann equation (LPBE) and the relaxation time approximation (RTA) of the Peierls-Boltzmann equation and employ them to describe thermal transport in quasi-ballistic graphene devices.
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