Thermal conductivity of diamond nanowires from first principles
Loading...
No Access Until
Permanent Link(s)
Other Titles
Abstract
Using ab initio calculations we have investigated the thermal conductivity (k) of diamond nanowires, unveiling unusual features unique to this system. In sharp contrast with Si, k(T) of diamond nanowires as thick as 400 nm still increase monotonically with temperature up to 300 K, and room-temperature size effects are stronger than for Si. A marked dependence of k on the crystallographic orientation is predicted, which is apparent even at room temperature. [001] growth direction always possesses the largest k in diamond nanowires. The predicted features point to a potential use of diamond nanowires for the precise control of thermal flow in nanoscale devices.
Journal / Series
Volume & Issue
Description
Sponsorship
Date Issued
2012-05-17
Publisher
American Physical Society
Keywords
thermal conductivity; diamond; nanowire; density functional theory; heat transfer; phonon; boltzmann transport equation; ab initio
Location
Effective Date
Expiration Date
Sector
Employer
Union
Union Local
NAICS
Number of Workers
Committee Chair
Committee Co-Chair
Committee Member
Degree Discipline
Degree Name
Degree Level
Related Version
Related DOI
Related To
Related Part
Based on Related Item
Has Other Format(s)
Part of Related Item
Related To
Related Publication(s)
Link(s) to Related Publication(s)
References
Link(s) to Reference(s)
Previously Published As
L. Wu, N. Mingo, L. Lindsay, D. A. Broido, D. A. Stewart, and N. A. Katcho, Phys. Rev. B, 85, 195436 (2012)
Government Document
ISBN
ISMN
ISSN
Other Identifiers
Rights
Rights URI
Types
article