American Physical Society, Physical review B, 10(81)
DOI: 10.1103/physrevb.81.100301
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We study ballistic thermal transport in three-terminal atomic nanojunctions by the nonequilibrium Green's function method. We find that there is ballistic thermal rectification in asymmetric three-terminal structures because of the incoherent phonon scattering from the control terminal. With spin-phonon interaction, we also find the ballistic thermal rectification even in symmetric three-terminal paramagnetic structures. Comment: 4 pages, 6 figures