| Issue |
EPL
Volume 90, Number 1, June 2010
|
|
|---|---|---|
| Article Number | 14001 | |
| Number of page(s) | 6 | |
| Section | Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics | |
| DOI | https://doi.org/10.1209/0295-5075/90/14001 | |
| Published online | 19 April 2010 | |
Anomalous thermal properties of a harmonic chain with correlated isotopic disorder
1
Instituto de Física y Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo - Morelia, Mich., 58060, Mexico
2
Instituto de Física, Universidad Autónoma de Puebla - Apartado Postal J-48, Puebla, Pue., 72570, Mexico
Corresponding author: luca.tessieri@gmail.com
Received:
3
March
2010
Accepted:
29
March
2010
We analyse the thermal properties of a harmonic chain with weak correlated disorder. With the use of a perturbative approach we derive analytical expressions for the time evolution of the chain temperature and of the heat flow when both ends of the chain are coupled to heat baths. Our analytical and numerical results demonstrate that specific long-range correlations of the isotopic disorder can suppress or enhance the vibrational modes in pre-defined frequency windows. In this way one can arrange a frequency-selective heat flow through disordered chains.
PACS: 44.10.+i – Heat conduction / 63.50.Gh – Vibrational states in disordered systems: Disordered crystalline alloys / 63.20.Pw – Localized modes
© EPLA, 2010
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.