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Titolo:
Effect of phonon scattering by surface roughness on the universal thermal conductance - art. no. 115502
Autore:
Santamore, DH; Cross, MC;
Indirizzi:
CALTECH, Dept Phys, Pasadena, CA 91125 USA CALTECH Pasadena CA USA 91125CALTECH, Dept Phys, Pasadena, CA 91125 USA
Titolo Testata:
PHYSICAL REVIEW LETTERS
fascicolo: 11, volume: 8711, anno: 2001,
pagine: 5502 -
SICI:
0031-9007(20010910)8711:11<5502:EOPSBS>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
QUANTUM WIRES; TRANSPORT; FLOW;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Santamore, DH CALTECH, Dept Phys, 114-36, Pasadena, CA 91125 USA CALTECH 114-36 Pasadena CA USA 91125 Pasadena, CA 91125 USA
Citazione:
D.H. Santamore e M.C. Cross, "Effect of phonon scattering by surface roughness on the universal thermal conductance - art. no. 115502", PHYS REV L, 8711(11), 2001, pp. 5502

Abstract

The effect of phonon scattering by surface roughness on the thermal conductance in mesoscopic systems at low temperatures is calculated using full elasticity theory. The low frequency behavior of the scattering shows novel power law dependences arising from the unusual properties of the elastic modes. This leads to new predictions for the low temperature depression of thethermal conductance below the ideal universal value. Comparison with the data of Schwab et al. [Nature (London) 404, 974 (2000)] suggests that surface roughness on a scale of the width of the thermal pathway is important in the experiment.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 22:37:04