Phonon-assisted heat transfer between vacuum-separated surfaces

Pendry, J. B.; Sasihithlu, Karthik; Craster, R. V.

doi:10.1103/physrevb.94.075414

Cited by 68 publications

(58 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It follows from the calculations that these contributions are of the same order and have almost the same distance dependence, which does not agree with the results of Ref. 28 . On Fig.3 the difference between the red and blue lines decreases when the potential difference increases what confirm theoretical prediction that at large potential difference and small separation the radiative heat transfer is reduced to the electrostatic phonon heat transfer.…”

Section: B Contribution From Rayleigh Wavescontrasting

confidence: 89%

“…For the electrostatic and van der Waals phonon heat transfer the contributions from the Rayleigh and bulk acoustic waves can be also of the same order what does not agree with the results of Ref. 28 .…”

Section: Introductioncontrasting

confidence: 76%

“…As it was shown in Ref. 28 for the damping constant of the Rayleigh waves can be used estimate γ 0 = 0.17ω s = 1.97 × 10 2 q s −1 .…”

Section: B Contribution From Rayleigh Wavesmentioning

confidence: 85%

See 2 more Smart Citations

Contribution of the acoustic waves to near-field heat transfer

Volokitin

2020

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

Calculations of the radiative and phonon heat transfer between metals in an extreme near field in presence of electrostatic potential difference are given. Potential difference leads to a coupling between the radiation field and acoustic waves in solid, as a result of which the heat flux between two gold plates associated with p -polarized electromagnetic waves increases by many orders of magnitude as the potential difference varies from 0 to 10V. The radiative heat transfer is compared with the phonon heat transfer associated with the electrostatic and van der Waals interactions between the surface displacements. For large potential difference and small distances the radiative heat transfer is reduced to the electrostatic phonon heat transfer. A particular case of surface acoustic waves -Rayleigh waves is studied in details. Conditions are obtained for the existence of surface phonon polaritons associated with the interaction of Rayleigh waves with an electromagnetic field. The surface Rayleigh and bulk acoustic waves can give contributions of the same order. The obtained results can be used to control heat fluxes at the nanoscale using the potential difference and to create coherent radiation sources based on the properties of the Rayleigh waves

show abstract

Section: B Contribution From Rayleigh Wavescontrasting

confidence: 89%

Section: Introductioncontrasting

confidence: 76%

See 1 more Smart Citation

Contribution of the acoustic waves to near-field heat transfer

Volokitin

2020

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

show abstract

“…These expressions are equivalent to that derived in [10]. This analysis can be extended to the case when you have different materials across the vacuum gap.…”

mentioning

confidence: 83%

“…However, this has been shown in [10] to contribute negligibly to heat transfer, and hence the discussion on this mode of heat transfer has been omitted here. In Figure 3, we compare the heat transfer plotted as a function of the gap between two bodies made of some commonly used materials in the nanoand micro-electromechanical industry.…”

Section: Heat Transfermentioning

confidence: 99%

Van der Waals Force Assisted Heat Transfer

Sasihithlu

Pendry

Craster

2017

Zeitschrift Für Naturforschung A

Self Cite

View full text Add to dashboard Cite

Phonons (collective atomic vibrations in solids) are more effective in transporting heat than photons. This is the reason why the conduction mode of heat transport in nonmetals (mediated by phonons) is dominant compared to the radiation mode of heat transport (mediated by photons). However, since phonons are unable to traverse a vacuum gap (unlike photons), it is commonly believed that two bodies separated by a gap cannot exchange heat via phonons. Recently, a mechanism was proposed [J. B. Pendry, K. Sasihithlu, and R. V. Craster, Phys. Rev. B 94, 075414 (2016)] by which phonons can transport heat across a vacuum gap -through the Van der Waals interaction between two bodies with gap less than the wavelength of light. Such heat transfer mechanisms are highly relevant for heating (and cooling) of nanostructures; the heating of the flying heads in magnetic storage disks is a case in point. Here, the theoretical derivation for modelling phonon transmission is revisited and extended to the case of two bodies made of different materials separated by a vacuum gap. Magnitudes of phonon transmission, and hence the heat transfer, for commonly used materials in the micro-and nano-electromechanical industry are calculated and compared with the calculation of conduction heat transfer through air for small gaps as well as the heat transfer calculation due to photon exchange.

show abstract

Mode Coupling in Electromechanical Systems: Recent Advances and Applications

Guo

Fang

Chen

et al. 2023

Adv Elect Materials

View full text Add to dashboard Cite

Mode interactions have recently become the focus of intense research in micro/nanoelectromechanical systems (M/NEMS) due to their ability to improve device performance and explore the frontiers of fundamental physics. Understanding and controlling coupling between vibrational modes are critical for the development of advanced M/NEMS devices. This review summarizes the recent advances in studies of coupling between multiple modes in M/NEMS resonators, focusing especially on experimental developments and practical applications. First, depending on spatial distribution of interacting modes, this review divides the coupled mechanism in three types: intermode, near‐neighbor, and long‐range coupling. Then, several fundamental physics approaches based on mechanical‐mode coupling, including linear and nonlinear coupling, modal localization, synchronization, and phonon manipulation are reviewed. This review also introduces sensing applications by using coupled mechanical modes. Finally, the state‐of‐the‐art open questions and challenges are reviewed.

show abstract

Phonon-assisted heat transfer between vacuum-separated surfaces

Cited by 68 publications

References 15 publications

Contribution of the acoustic waves to near-field heat transfer

Contribution of the acoustic waves to near-field heat transfer

Van der Waals Force Assisted Heat Transfer

Mode Coupling in Electromechanical Systems: Recent Advances and Applications

Contact Info

Product

Resources

About