TITLE

Carbon nanocone: A promising thermal rectifier

AUTHOR(S)
Nuo Yang; Gang Zhang; Baowen Li
PUB. DATE
December 2008
SOURCE
Applied Physics Letters;12/15/2008, Vol. 93 Issue 24, p243111
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
With molecular dynamics simulations, we demonstrate very obvious thermal rectification in large temperature range from 200 to 400 K in nanocone. We also observe that the rectification of nanocone does not depend on the length very sensitively, which is in stark contrast with the nanotube thermal rectifier in which the rectification decreases dramatically as the length increases. Our work demonstrates that carbon nanocone is a promising practical phononic device.
ACCESSION #
35922176

 

Related Articles

  • Maximum power and thermal efficiency of an irreversible power cycle. Ait-Ali, Mohand A. // Journal of Applied Physics;10/1/1995, Vol. 78 Issue 7, p4313 

    Presents a study that modeled a Carnot-like irreversible power cycle with isothermal and adiabatic, irreversible processes. Comparison between the performances of the irreversible power cycle and those of the endoreversible cycle; Influence of internal irreversibilities in general; Formulation...

  • Activated sampling in complex materials at finite temperature: The properly obeying probability activation-relaxation technique. Vocks, Henk; Chubynsky, M. V.; Barkema, G. T.; Mousseau, Normand // Journal of Chemical Physics;12/22/2005, Vol. 123 Issue 24, p244707 

    While the dynamics of many complex systems is dominated by activated events, there are very few simulation methods that take advantage of this fact. Most of these procedures are restricted to relatively simple systems or, as with the activation-relaxation technique (ART), sample the conformation...

  • Direct Atomistic Modelling of Deformed Polymer Glasses. Lyulin, Alexey V.; Michels, M. A. J. // AIP Conference Proceedings;7/7/2008, Vol. 1027 Issue 1, p1330 

    We use molecular-dynamics computer simulations to explore the influence of thermal and mechanical history of typical glassy polymers, atactic polystyrene (PS) and (bis)phenol A polycarbonate (PC), on their deformation. Polymer stress-strain and energy-strain developments have been followed for...

  • The contributions of MDSC to the understanding of the thermodynamics of polymers. Wunderlich, B. // Journal of Thermal Analysis & Calorimetry;Jul2006, Vol. 85 Issue 1, p179 

    Contributions of modern, temperature-modulated calorimetry are qualitatively and quantitatively discussed. The limitations are summarized, and it is shown that their understanding leads to new advances in instrumentation and measurement. The new thermal analysis experiments allow to separate...

  • Driven simulations of the dynamic heat capacity. Brown, Jonathan R.; McCoy, John D.; Adolf, Douglas B. // Journal of Chemical Physics;9/14/2009, Vol. 131 Issue 10, p104507 

    The dynamic heat capacity is calculated from molecular dynamics simulations of a model glass former of simple bead-spring chains. The temperature is directly modulated and the energy tracked. The frequency-dependent heat capacity is found as the complex response function. There is agreement both...

  • Network equilibration and first-principles liquid water. Fernández-Serra, M. V.; Artacho, Emilio // Journal of Chemical Physics;12/8/2004, Vol. 121 Issue 22, p11136 

    Motivated by the very low diffusivity recently found in ab initio simulations of liquid water, we have studied its dependence with temperature, system size, and duration of the simulations. We use ab initio molecular dynamics (AIMD), following the Born–Oppenheimer forces obtained from...

  • Quantum effect on the internal proton transfer and structural fluctuation in the H5+ cluster. Ohta, Yasuhito; Ohta, Koji; Kinugawa, Kenichi // Journal of Chemical Physics;12/8/2004, Vol. 121 Issue 22, p10991 

    The thermal equilibrium state of H5+ is investigated by means of an ab initio path integral molecular dynamics (PIMD) method, in which degrees of freedom of both nuclei and electrons at finite temperature are quantized within the adiabatic approximation. The second-order Møller-Plesset force...

  • Structural properties of gold clusters at different temperatures. Mahladisa, M. A.; Ackermann, L.; Ngoepe, P. E. // South African Journal of Science;Sep/Oct2005, Vol. 101 Issue 9/10, p471 

    A series of gold clusters consisting of aggregates of from 13 to 147 atoms was studied using the Sutton-Chen type many-body potential in molecular dynamics simulations. The properties of these clusters at temperatures from 10 K to 1000 K were investigated in terms of their energy content and...

  • Thermal decomposition of RDX from reactive molecular dynamics. Strachan, Alejandro; Kober, Edward M.; van Duin, Adri C. T.; Oxgaard, Jonas; Goddard, William A. // Journal of Chemical Physics;2/1/2005, Vol. 122 Issue 5, p054502 

    We use the recently developed reactive force field ReaxFF with molecular dynamics to study thermal induced chemistry in RDX [cyclic-[CH2N(NO2)]3] at various temperatures and densities. We find that the time evolution of the potential energy can be described reasonably well with a single...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics