Crossover in thermal transport properties of natural, perovskite-structured superlattices

被引：39

作者：

Chernatynskiy, Aleksandr ^{[1
]}

Grimes, Robin W. ^{[2
]}

Zurbuchen, Mark A. ^{[3
]}

Clarke, David R. ^{[4
]}

Phillpot, Simon R. ^{[1
]}

机构：

[1] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA

[2] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2AZ, England

[3] Aerosp Corp, El Segundo, CA 90245 USA

[4] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 16期

基金：

英国工程与自然科学研究理事会;

关键词：

MOLECULAR-DYNAMICS SIMULATIONS; CONDUCTIVITY;

D O I：

10.1063/1.3253421

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Atomic-level simulations are used to analyze the thermal-transport properties of a naturally layered material: the Ruddlesden-Popper phase, formed by interleaving perovskite layers of strontium titanate with strontium oxide rocksalt layers. The thermal conductivity parallel to the plane of structural layering is found to be systematically greater than that perpendicular to the layering. With decreasing number of perovskite blocks in the structure, a transition is seen from the thermal-transport properties of a bulk solid containing interfaces to that of an anisotropic monolithic material. The exact transition point should be temperature dependent and might enable tuning of the thermal conductance properties of the material. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3253421]

引用

页数：3

共 26 条

[1] Interatomic potentials for strontium titanate:: An assessment of their transferability and comparison with density functional theory [J].

Benedek, Nicole A. ;

Chua, Alvin L. -S. ;

Elsaesser, Christian ;

Sutton, Adrian P. ;

Finnis, Mike W. .

PHYSICAL REVIEW B, 2008, 78 (06)

[2] Crossover in thermal transport mechanism in nanocrystalline silicon [J].

Bodapati, A ;

Keblinski, P ;

Schelling, PK ;

Phillpot, SR .

APPLIED PHYSICS LETTERS, 2006, 88 (14)

[3] Nanoscale thermal transport [J].

Cahill, DG ;

Ford, WK ;

Goodson, KE ;

Mahan, GD ;

Majumdar, A ;

Maris, HJ ;

Merlin, R ;

Phillpot, SR .

JOURNAL OF APPLIED PHYSICS, 2003, 93 (02) :793-818

[4] LOWER LIMIT TO THE THERMAL-CONDUCTIVITY OF DISORDERED CRYSTALS [J].

CAHILL, DG ;

WATSON, SK ;

POHL, RO .

PHYSICAL REVIEW B, 1992, 46 (10) :6131-6140

[5] Thermal conductivity of GaAs/AlAs superlattices [J].

Capinski, WS ;

Maris, HJ .

PHYSICA B-CONDENSED MATTER, 1996, 219-20 :699-701

[6] Thermal conductivity and ballistic-phonon transport in the cross-plane direction of superlattices [J].

Chen, G .

PHYSICAL REVIEW B, 1998, 57 (23) :14958-14973

[7] Ultralow thermal conductivity in disordered, layered WSe2 crystals [J].

Chiritescu, Catalin ;

Cahill, David G. ;

Nguyen, Ngoc ;

Johnson, David ;

Bodapati, Arun ;

Keblinski, Pawel ;

Zschack, Paul .

SCIENCE, 2007, 315 (5810) :351-353

[8] Ultra-low thermal conductivity in W/Al2O3 nanolaminates [J].

Costescu, RM ;

Cahill, DG ;

Fabreguette, FH ;

Sechrist, ZA ;

George, SM .

SCIENCE, 2004, 303 (5660) :989-990

[9] Epitaxial growth of the first five members of the Srn+1TinO3n+1 Ruddlesden-Popper homologous series [J].

Haeni, JH ;

Theis, CD ;

Schlom, DG ;

Tian, W ;

Pan, XQ ;

Chang, H ;

Takeuchi, I ;

Xiang, XD .

APPLIED PHYSICS LETTERS, 2001, 78 (21) :3292-3294

[10] Lower limit to phonon thermal conductivity of disordered, layered solids [J].

Hopkins, Patrick E. ;

Piekos, Edward S. .

APPLIED PHYSICS LETTERS, 2009, 94 (18)

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