2014
DOI: 10.1063/1.4871672
|View full text |Cite
|
Sign up to set email alerts
|

From kinetic to collective behavior in thermal transport on semiconductors and semiconductor nanostructures

Abstract: We present a model which deepens into the role that normal scattering has on the thermal conductivity in semiconductor bulk, micro and nanoscale samples. Thermal conductivity as a function of the temperature undergoes a smooth transition from a kinetic to a collective regime that depends on the importance of normal scattering events. We demonstrate that in this transition, the key point to fit experimental data is changing the way to perform the average on the scattering rates. We apply the model to bulk Si wi… Show more

Help me understand this report
View preprint versions

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

2
77
1

Year Published

2015
2015
2020
2020

Publication Types

Select...
5
4

Relationship

0
9

Authors

Journals

citations
Cited by 71 publications
(80 citation statements)
references
References 41 publications
2
77
1
Order By: Relevance
“…38 and derived by Alvarez and Jou [43]: . We used Σ 2 in place of Σ in the above expression as it provided a better interpolation → 0 at low-T (Fig.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…38 and derived by Alvarez and Jou [43]: . We used Σ 2 in place of Σ in the above expression as it provided a better interpolation → 0 at low-T (Fig.…”
Section: Discussionmentioning
confidence: 99%
“…Interpolation is controlled by "switching factors" [34,38] related to the ratio ℓ N /ℓ R (Appendix F and Fig. 8).…”
Section: B Ballistic Lattice and Magnon Thermal Conductivities Distimentioning
confidence: 99%
“…To further interpret this transition from ballistic to normal behavior, a recent proposed kinetic-collective model [16] based on different phonon-phonon scattering physics might be worthwhile, from which a wide range of temperature-and size-dependent thermal conductivity can be predicted quite well [16][17][18]. However, obviously such a theoretical model does not involve the effects of other nonlinear excitations, such as solitons [19] and discrete breathers (DBs) [20][21][22][23].…”
Section: Introductionmentioning
confidence: 99%
“…This failure arises because the simultaneous interaction of all phonon populations is crucial, and such collective behaviour 4,10 can lead to the emergence of composite excitations as the leading heat carriers.…”
mentioning
confidence: 99%