Electronic cooling in graphene

R. Bistritzer, A. H. MacDonald

Research output: Contribution to journalArticlepeer-review

Abstract

Energy transfer to acoustic phonons is the dominant low-temperature cooling channel of electrons in a crystal. For cold neutral graphene we find that the weak cooling power of its acoustic modes relative to their heat capacity leads to a power-law decay of the electronic temperature when far from equilibrium. For heavily doped graphene a high electronic temperature is shown to initially decrease linearly with time at a rate proportional to n3/2 with n being the electronic density. The temperature at which cooling via optical phonon emission begins to dominate depends on graphene carrier density.

Original languageEnglish
Article number206410
JournalPhysical Review Letters
Volume102
Issue number20
DOIs
StatePublished - 18 May 2009
Externally publishedYes

Fingerprint

Dive into the research topics of 'Electronic cooling in graphene'. Together they form a unique fingerprint.

Cite this