Heat flow enhancement in a nanoscale plasmonic junction induced by Kondo resonances and electron-phonon coupling
Yükleniyor...
Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Recently, we showed that plasmon-exciton coupling can increase entropy current through a bridge coupled to
plasmonic metal nanoparticles. Here we show that electron-phonon coupling can also be used to control the
entropy current in similar systems. Entropy current tends to decrease due to electron-phonon coupling and to
exhibit a monotonous decrease upon temperature ramping. However, an anomaly affecting the current where it
is enhanced by electron-phonon coupling is indicated at around 42 times the system’s Kondo temperature. We
therefore report means to control heat flow by tuning the Kondo resonance through the electron-phonon
coupling. We analyze the conditions that bring about these trends due to electron-phonon coupling by
employing non-equilibrium Green’s function formulation addressing the entropy current and the derived heat
flow.
Açıklama
Anahtar Kelimeler
Heat transport, Kondo temperature, NEGF, Plasmonic, Electron-phonon
Kaynak
Physica E: Low-dimensional Systems and Nanostructures
WoS Q Değeri
Q2
Scopus Q Değeri
Cilt
127
Sayı
Künye
Goker, A., Aksu, H., & Dunietz, B. D. (2021). Heat flow enhancement in a nanoscale plasmonic junction induced by kondo resonances and electron-phonon coupling. Physica E: Low-Dimensional Systems and Nanostructures, 127 doi:10.1016/j.physe.2020.114536
