Role of acoustic phonon transport in near- to asperity-contact heat transfer

Jarzembski, Amun; Tokunaga, Takuro; Crossley, Jacob; Yun, Jinhyuk; Shaskey, Cedric; Murdick, Ryan A.; Park, Inkyu; Francoeur, Mathieu; Park, Keunhan

doi:10.1103/physrevb.106.205418

Cited by 6 publications

(1 citation statement)

References 82 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With advances in nanotechnology, vacuum gaps with sizes in the nanometer-to sub-nanometer range can be achieved in experiments [8][9][10][11]. This has stimulated active research in recent years also on the heat transfer driven by the tunneling of acoustic phonons [11][12][13][14][15][16][17][18][19][20][21][22][23] in addition to photons, as their thermal wavelengths are at that length scale. However, the concept of acoustic phonon tunneling is far from obvious, as a phonon, being a vibration of the atomic lattice, requires the presence of a medium to propagate.…”

mentioning

confidence: 99%

Heat transfer across a vacuum gap induced by piezoelectrically mediated acoustic phonon tunneling

Geng¹,

Maasilta²

2023

Preprint

View full text Add to dashboard Cite

mentioning

confidence: 99%

Heat transfer across a vacuum gap induced by piezoelectrically mediated acoustic phonon tunneling

Geng¹,

Maasilta²

2023

Preprint

View full text Add to dashboard Cite

Characterization of strongly coupled quartz tuning fork sensors for precision force measurement in atomic force microscopy

Shaskey,

Jarzembski,

Jue

et al. 2024

Ultramicroscopy

View full text Add to dashboard Cite

Complete tunneling of acoustic waves between piezoelectric crystals

Geng

Maasilta

2023

Commun Phys

View full text Add to dashboard Cite

The mechanical displacements in piezoelectric materials carry along macroscopic electric fields, allowing tunneling of acoustic waves across a vacuum gap beyond the charge-charge interaction distance. However, no rigorous proof of complete acoustic wave tunneling has been presented, and the conditions to achieve complete tunneling have not been identified. Here, we demonstrate analytically the condition for such phenomenon for arbitrary anisotropic crystal symmetries and orientations, and that complete transmission of the incoming wave occurs at the excitation frequency of leaky surface waves. We also show that the complete transmission condition can be related to the surface electric impedance and the effective surface permittivity of the piezoelectric material, relevant to realize the complete tunneling experimentally. We support our findings with numerical results for the maximum power transmittance of a slow transverse wave tunneling between identical ZnO crystals. The results show that complete tunneling can be achieved for a large range of orientations.

show abstract

Role of acoustic phonon transport in near- to asperity-contact heat transfer

Cited by 6 publications

References 82 publications

Heat transfer across a vacuum gap induced by piezoelectrically mediated acoustic phonon tunneling

Heat transfer across a vacuum gap induced by piezoelectrically mediated acoustic phonon tunneling

Characterization of strongly coupled quartz tuning fork sensors for precision force measurement in atomic force microscopy

Complete tunneling of acoustic waves between piezoelectric crystals

Contact Info

Product

Resources

About