eprintid: 20434
rev_number: 48
eprint_status: archive
userid: 608
dir: disk0/00/02/04/34
datestamp: 2011-03-25 12:11:07
lastmod: 2021-09-25 23:23:02
status_changed: 2011-03-25 12:11:07
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Chiatti, O
creators_name: Nicholls, JT
creators_name: Proskuryakov, YY
creators_name: Lumpkin, N
creators_name: Farrer, I
creators_name: Ritchie, DA
title: Quantum thermal conductance of electrons in a one-dimensional wire
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
keywords: POINT CONTACTS, GAS, QUANTIZATION, TRANSPORT
note: © 2006 The American Physical Society
abstract: We use an electron thermometer to measure the temperature rise of approximately 2x10(5) electrons in a two-dimensional box, due to heat flow into the box through a ballistic one-dimensional (1D) constriction. Using a simple model we deduce the thermal conductance kappa(V-g) of the 1D constriction, which we compare to its electrical conductance characteristics; for the first four 1D subbands the heat carried by the electrons passing through the wire is proportional to its electrical conductance G(V-g). In the vicinity of the 0.7 structure this proportionality breaks down, and a plateau at the quantum of thermal conductance pi(2)k(B)(2)T/3h is observed.
date: 2006-08-04
publisher: AMERICAN PHYSICAL SOC
official_url: http://dx.doi.org/10.1103/PhysRevLett.97.056601
vfaculties: VMPS
oa_status: green
language: eng
primo: open
primo_central: open_green
article_type_text: Article
verified: verified_manual
doi: 10.1103/PhysRevLett.97.056601
language_elements: EN
lyricists_name: CHIATTI, OLIVIO
lyricists_id: OCHIA30
full_text_status: public
publication: Physical Review Letters
volume: 97
number: 5
article_number: 056601
pagerange: 056601-1
issn: 0031-9007
citation:        Chiatti, O;    Nicholls, JT;    Proskuryakov, YY;    Lumpkin, N;    Farrer, I;    Ritchie, DA;      (2006)    Quantum thermal conductance of electrons in a one-dimensional wire.                   Physical Review Letters , 97  (5)    , Article 056601.  10.1103/PhysRevLett.97.056601 <https://doi.org/10.1103/PhysRevLett.97.056601>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/20434/1/20434.pdf