Tunable Quantum Temperature Oscillations in Graphene and Carbon Nanoribbons

TL;DR

This paper predicts tunable quantum temperature oscillations in graphene and carbon nanoribbons caused by Friedel oscillations, which can be experimentally observed with current measurement techniques by adjusting gating or doping.

Contribution

It introduces a realistic model linking quantum temperature oscillations to Friedel oscillations and shows how their wavelength can be tuned via gating or doping.

Findings

Quantum temperature oscillations are related to Friedel oscillations.

The oscillation wavelength can be tuned over several orders of magnitude.

Experimental detection of these oscillations is feasible with existing techniques.

Abstract

We investigate the local electron temperature distribution in carbon nano-ribbon (CNR) and graphene junctions subject to an applied thermal gradient. Using a realistic model of a scanning thermal microscope, we predict quantum temperature oscillations whose wavelength is related to that of Friedel oscillations. Experimentally, this wavelength can be tuned over several orders of magnitude by gating/doping, bringing quantum temperature oscillations within reach of the spatial resolution of existing measurement techniques.