Asymmetric heat flow in mesoscopic magnetic system

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The characteristics of heat flow in a coupled magnetic system are studied. The coupled system is composed of a gapped chain and a gapless chain. The system size is assumed to be quite small so that the mean free path is comparable to it. When the parameter set of the temperatures of reservoirs is exchanged, the characteristics of heat flow are studied with the Keldysh Green function technique. The asymmetry of current is found in the presence of a local equilibrium process at the contact between the magnetic systems. The present setup is realistic and such an effect will be observed in real experiments. We also discuss the simple phenomenological explanation to obtain the asymmetry.

Original languageEnglish
Article number034603
JournalJournal of the Physical Society of Japan
Volume75
Issue number3
DOIs
Publication statusPublished - 2006 Mar
Externally publishedYes

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heat transmission
asymmetry
mean free path
Green's functions
temperature

Keywords

  • Heat flow control
  • Quantum magnetic systems
  • Quantum thermal conduction

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Asymmetric heat flow in mesoscopic magnetic system. / Saitou, Keiji.

In: Journal of the Physical Society of Japan, Vol. 75, No. 3, 034603, 03.2006.

Research output: Contribution to journalArticle

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