Abstract
We present a first-principles study of the cross-plane thermal conductivity κ⊥ in a wide variety of semiconductor thin films. We introduce a simple suppression model that matches variance-reduced Monte Carlo simulations with ab-initio phonon dispersions and scattering rates within ≤5% even for anisotropic compounds. This, in turn, enables accurate κ⊥ reconstruction from tabulated cumulative conductivity curves κΣ(Λ⊥). We furthermore reveal, and explain, a distinct quasiballistic regime characterised by a fractional thickness dependence κ⊥∼L2−α in alloys (where α is the Lévy exponent) and logarithmic dependence κ⊥∼ln(L) in single crystals. These observations culminate in the formulation of two compact parametric forms for κ⊥(L) that can fit the first-principles curves across the entire ballistic-diffusive range within a few percent for all investigated compounds.
Authors
3
- Bjorn Vermeersch (first)
- Jesús Carrete (additional)
- Natalio Mingo (additional)
References
24
Referenced
46
10.1063/1.1524305
/ J. Appl. Phys. (2003)10.1063/1.4832615
/ Appl. Phys. Rev. (2014)10.1115/1.2910673
/ ASME J. Heat Transfer (1993)10.1115/1.1833367
/ ASME J. Heat Transfer (2005)10.1115/1.4000447
/ ASME J. Heat Transfer (2010)10.1063/1.4905590
/ J. Appl. Phys. (2015)10.1063/1.4919432
/ J. Appl. Phys. (2015)10.1109/TED.2006.877874
/ IEEE Trans. Electron Devices (2006)10.1063/1.1868876
/ J. Appl. Phys. (2005)10.1103/PhysRevB.87.035437
/ Phys. Rev. B (2013)10.1016/j.cpc.2014.02.015
/ Comput. Phys. Commun. (2014){'volume-title': 'Length-Scale Dependent Phonon Interactions', 'year': '2014', 'first-page': '137', 'key': '2023061715193836300_c12'}
/ Length-Scale Dependent Phonon Interactions (2014)10.1002/adma.200600527
/ Adv. Mater. (2007)10.1038/nature10677
/ Nature (2011)10.1038/nature13184
/ Nature (2014)10.1063/1.4895770
/ Appl. Phys. Lett. (2014)10.1103/PhysRevB.91.085202
/ Phys. Rev. B (2015)10.1103/PhysRevB.86.174307
/ Phys. Rev. B (2012)10.1103/PhysRevB.85.115208
/ Phys. Rev. B (2012){'volume-title': "Green's Functions in Quantum Physics", 'year': '1983', 'edition': '2nd ed.', 'key': '2023061715193836300_c20'}
/ Green's Functions in Quantum Physics (1983)10.1103/PhysRevB.84.205331
/ Phys. Rev. B (2011)-
See supplementary material at http://dx.doi.org/10.1063/1.4948968 for tabulated cumulative conductivity functions.
(
10.1063/1.4948968
) 10.1103/PhysRevB.91.085203
/ Phys. Rev. B (2015)10.1063/1.4826526
/ J. Appl. Phys. (2013)
Dates
Type | When |
---|---|
Created | 9 years, 3 months ago (May 9, 2016, 1 p.m.) |
Deposited | 2 years, 2 months ago (June 17, 2023, 11:19 a.m.) |
Indexed | 34 minutes ago (Aug. 30, 2025, 7:20 a.m.) |
Issued | 9 years, 3 months ago (May 9, 2016) |
Published | 9 years, 3 months ago (May 9, 2016) |
Published Online | 9 years, 3 months ago (May 9, 2016) |
Published Print | 9 years, 3 months ago (May 9, 2016) |
Funders
1
European Commission
10.13039/501100000780
Region: Europe
gov (National government)
Labels
26
- European Union
- Comisión Europea
- Europäische Kommission
- EU-Kommissionen
- Euroopa Komisjoni
- Ευρωπαϊκής Επιτροπής
- Европейската комисия
- Evropské komise
- Commission européenne
- Choimisiúin Eorpaigh
- Europskoj komisiji
- Commissione europea
- La Commissione europea
- Eiropas Komisiju
- Europos Komisijos
- Európai Bizottságról
- Europese Commissie
- Komisja Europejska
- Comissão Europeia
- Comisia Europeană
- Európskej komisii
- Evropski komisiji
- Euroopan komission
- Europeiska kommissionen
- EC
- EU
Awards
1
- 645776
@article{Vermeersch_2016, title={Cross-plane heat conduction in thin films with ab-initio phonon dispersions and scattering rates}, volume={108}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.4948968}, DOI={10.1063/1.4948968}, number={19}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Vermeersch, Bjorn and Carrete, Jesús and Mingo, Natalio}, year={2016}, month=may }