Abstract
We study heat conduction through one-dimensional homogeneous lattices in the presence of the anharmonic nearest-neighbor interaction without an on-site potential. We observe the occurrence of negative differential thermal resistance (NDTR); i.e., there exists a region of temperature difference where the heat flux decreases as the applied temperature difference increases. The strength of nearest-neighbor interactions has negative effects on the occurrence of NDTR. However, the NDTR regime barely changes with rotation frequency. It is also proven that the on-site potential is not a necessary condition for NDTR. These investigations will contribute to the fabrication of thermal devices where NDTR plays an important role.
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