Europhysics Letters, Volume (119), No (4), Year (2017-10) , Pages (48002-48002)

Title : ( Casimir energy for acoustic phonons in graphene )

Authors: yusef koohsarian , Kurosh Javidan , A. Shirzad ,

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Abstract

We find the Casimir energy, at finite temperature, for acoustic phonons in a graphene sheet suspended over a rectangular trench, and the corresponding Casimir forces are interpreted as correction terms to the built-in tensions of the graphene. We show that these corrections generally break the tensional isotropy of the membrane, and can increase or decrease the membrane tension. We demonstrate that for a narrow rectangular trench with side-lengths in the order of few nanometers and few micrometers, these temperature corrections are expected to be noticeable (10^(−4) N/m) at room temperature. These corrections would be even more considerable by increasing the temperature, and can be applied for adjusting the built-in tension of the graphene. Consequently we introduce a corrected version for the fundamental resonance frequency of the graphene resonator.

Keywords

, Casimir energy, Acoustic phonons, Graphene, heat kernel expansion
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@article{paperid:1065233,
author = {Koohsarian, Yusef and Javidan, Kurosh and A. Shirzad},
title = {Casimir energy for acoustic phonons in graphene},
journal = {Europhysics Letters},
year = {2017},
volume = {119},
number = {4},
month = {October},
issn = {0295-5075},
pages = {48002--48002},
numpages = {0},
keywords = {Casimir energy; Acoustic phonons; Graphene; heat kernel expansion},
}

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%0 Journal Article
%T Casimir energy for acoustic phonons in graphene
%A Koohsarian, Yusef
%A Javidan, Kurosh
%A A. Shirzad
%J Europhysics Letters
%@ 0295-5075
%D 2017

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