Molecular dynamics simulation of thermal conductivity of silicon nanowires

被引:403
作者
Volz, SG
Chen, G
机构
[1] CNRS, UMR 6608, Lab Etudes Therm, F-86960 Futuroscope, France
[2] Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
关键词
D O I
10.1063/1.124914
中图分类号
O59 [应用物理学];
学科分类号
摘要
We investigate the thermal conductivity of silicon nanowires based on molecular dynamics (MD) simulations. The simulated thermal conductivities of nanowires with square cross sections are found to be about two orders of magnitude smaller than those of bulk Si crystals in a wide range of temperatures (200-500 K) for both rigid and free boundary conditions. A solution of the Boltzmann transport equation is used to explore the possibility of explaining the MD results based on boundary scattering. (C) 1999 American Institute of Physics. [S0003-6951(99)05340-1].
引用
收藏
页码:2056 / 2058
页数:3
相关论文
共 23 条
[1]   THERMAL-CONDUCTIVITY OF DISORDERED HARMONIC SOLIDS [J].
ALLEN, PB ;
FELDMAN, JL .
PHYSICAL REVIEW B, 1993, 48 (17) :12581-12588
[2]   Significant decrease of the lattice thermal conductivity due to phonon confinement in a free-standing semiconductor quantum well [J].
Balandin, A ;
Wang, KL .
PHYSICAL REVIEW B, 1998, 58 (03) :1544-1549
[4]  
Evans D.J., 1990, STAT MECH NONEQUILIB
[5]   ENERGY-FLUX OPERATOR FOR A LATTICE [J].
HARDY, RJ .
PHYSICAL REVIEW, 1963, 132 (01) :168-&
[6]   ON PHONON LOCALIZATION IN NEARLY ONE-DIMENSIONAL SOLIDS [J].
JACKLE, J .
SOLID STATE COMMUNICATIONS, 1981, 39 (11) :1261-1263
[7]   THERMAL ANOMALIES IN VERY FINE-STRUCTURES [J].
KELLY, MJ .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1982, 15 (27) :L969-L973
[8]   CONTINUUM DEDUCTIONS FROM MOLECULAR HYDRODYNAMICS [J].
KOPLIK, J ;
BANAVAR, JR .
ANNUAL REVIEW OF FLUID MECHANICS, 1995, 27 :257-292
[9]   STATISTICAL-MECHANICAL THEORY OF IRREVERSIBLE PROCESSES .2. RESPONSE TO THERMAL DISTURBANCE [J].
KUBO, R ;
YOKOTA, M ;
NAKAJIMA, S .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1957, 12 (11) :1203-1211