A microscopic mechanism for increasing thermoelectric efficiency

被引:29
作者
Saito, Keiji [2 ,3 ]
Benenti, Giuliano [1 ,4 ]
Casati, Giulio [1 ,4 ,5 ]
机构
[1] Univ Insubria, CNISM, CNR INFM, Ctr Nonlinear & Complex Syst, I-22100 Como, Italy
[2] Univ Tokyo, Grad Sch Sci, Dept Phys, Tokyo 1130033, Japan
[3] JST, Grad Sch Sci, Dept Phys, Kawaguchi, Saitama 3320012, Japan
[4] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy
[5] Natl Univ Singapore, Ctr Quantum Technol, Singapore 117543, Singapore
关键词
Thermoelectricity; Nonlinear dynamics; Onsager coefficients; TRANSPORT;
D O I
10.1016/j.chemphys.2010.06.009
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We study the coupled particle and energy transport in a prototype model of interacting one-dimensional system: the disordered hard-point gas, for which numerical data suggest that the thermoelectric figure of merit ZT diverges with the system size. This result is explained in terms of a microscopic mechanism, namely the local equilibrium is characterized by the emergence of a broad stationary "modified Maxwell-Boltzmann velocity distribution", of width much larger than the mean velocity of the particle flow. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:508 / 513
页数:6
相关论文
共 24 条
[1]  
Callen HB., 1985, Thermodynamics and an Introduction to Thermostatistics
[2]   A one-dimensional hard-point gas and thermoelectric efficiency [J].
Casati, Giulio ;
Wang, Lei ;
Prosen, Tomaz .
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, 2009,
[3]   Increasing thermoelectric efficiency:: A dynamical systems approach [J].
Casati, Giulio ;
Mejia-Monasterio, Carlos ;
Prosen, Tomaz .
PHYSICAL REVIEW LETTERS, 2008, 101 (01)
[4]  
de Groot S.R., 1984, NONEQUILIBRIUM THERM
[5]   New directions for low-dimensional thermoelectric materials [J].
Dresselhaus, Mildred S. ;
Chen, Gang ;
Tang, Ming Y. ;
Yang, Ronggui ;
Lee, Hohyun ;
Wang, Dezhi ;
Ren, Zhifeng ;
Fleurial, Jean-Pierre ;
Gogna, Pawan .
ADVANCED MATERIALS, 2007, 19 (08) :1043-1053
[6]   Asymmetric heat conduction in nonlinear lattices [J].
Hu, Bambi ;
Yang, Lei ;
Zhang, Yong .
PHYSICAL REVIEW LETTERS, 2006, 97 (12)
[7]  
Huang K., 1987, STAT MECH, V2
[8]   Reversible thermoelectric nanomaterials [J].
Humphrey, TE ;
Linke, H .
PHYSICAL REVIEW LETTERS, 2005, 94 (09)
[9]   Reversible quantum Brownian heat engines for electrons [J].
Humphrey, TE ;
Newbury, R ;
Taylor, RP ;
Linke, H .
PHYSICAL REVIEW LETTERS, 2002, 89 (11) :1-116801
[10]   Transport properties of a modified Lorentz gas [J].
Larralde, H ;
Leyvraz, F ;
Mejía-Monasterio, C .
JOURNAL OF STATISTICAL PHYSICS, 2003, 113 (1-2) :197-231