Calculation of Si nanowire thermal conductivity using complete phonon dispersion relations

被引：369

作者：

Mingo, N ^{[1
]}

机构：

[1] NASA, Ames Res Ctr, Eloret Corp, Moffett Field, CA 94035 USA

来源：

PHYSICAL REVIEW B | 2003年 / 68卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.68.113308

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The lattice thermal conductivity of crystalline Si nanowires is calculated. The calculation uses complete phonon dispersions, and does not require any externally imposed frequency cutoffs. No adjustment to nanowire thermal conductivity measurements is required. Good agreement with experimental results for nanowires wider than 35 nm is obtained. A formulation in terms of the transmission function is given. Also, the use of a simpler, nondispersive "Callaway formula," is discussed from the complete dispersions perspective.

引用

页数：4

共 19 条

[1] Thermal conductivity of germanium crystals with different isotopic compositions [J].

AsenPalmer, M ;

Bartkowski, K ;

Gmelin, E ;

Cardona, M ;

Zhernov, AP ;

Inyushkin, AV ;

Taldenkov, A ;

Ozhogin, VI ;

Itoh, KM ;

Haller, EE .

PHYSICAL REVIEW B, 1997, 56 (15) :9431-9447

[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

[3] Random-matrix theory of quantum transport [J].

Beenakker, CWJ .

REVIEWS OF MODERN PHYSICS, 1997, 69 (03) :731-808

[4]

BERMAN R, 1976, THERMAL CONDUCTIVITY

[5] MODEL FOR LATTICE THERMAL CONDUCTIVITY AT LOW TEMPERATURES [J].

CALLAWAY, J .

PHYSICAL REVIEW, 1959, 113 (04) :1046-1051

[6] TRANSITION FROM SHARVIN TO DRUDE RESISTANCE IN HIGH-MOBILITY WIRES [J].

DEJONG, MJM .

PHYSICAL REVIEW B, 1994, 49 (11) :7778-7781

[7] Phonon scattering mechanisms in suspended nanostructures from 4 to 40 K [J].

Fon, W ;

Schwab, KC ;

Worlock, JM ;

Roukes, ML .

PHYSICAL REVIEW B, 2002, 66 (04) :1-5

[8] ANHARMONIC THERMAL RESISTIVITY OF DIELECTRIC CRYSTALS AT LOW-TEMPERATURES [J].

HAN, YJ ;

KLEMENS, PG .

PHYSICAL REVIEW B, 1993, 48 (09) :6033-6042

[9] Intrinsic thermal-resistive process of crystals: Umklapp processes at low and high temperatures [J].

Han, YJ .

PHYSICAL REVIEW B, 1996, 54 (13) :8977-8980

[10]

Harrison W. A., 1989, ELECT STRUCTURE PROP

← 1 2 →