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Strain-tunable band parameters of ZnO monolayer in graphene-like honeycomb structure

DSpace at IIT Bombay

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Title Strain-tunable band parameters of ZnO monolayer in graphene-like honeycomb structure
 
Creator BEHERA, H
MUKHOPADHYAY, G
 
Subject First-principles calculations
ZnO monolayer
Band structure
Biaxial strains
PLANE-WAVE METHOD
GAP
 
Description We present ab initio calculations which show that the direct-band-gap, effective masses and Fermi velocities of charge carriers in ZnO monolayer (ML-ZnO) in graphene-like honeycomb structure are all tunable by application of in-plane homogeneous biaxial strain. Within our simulated strain limit of +/- 10%. the band gap remains direct and shows a strong non-linear variation with strain. Moreover, the average Fermi velocity of electrons in unstrained ML-ZnO is of the same order of magnitude as that in graphene. The results promise potential applications of ML-ZnO in mechatronics/straintronics and other nano-devices such as the nano-electromechanical systems (NEMS) and nano-optomechanical systems (NOMS). (C) 2012 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2014-10-17T04:58:48Z
2014-10-17T04:58:48Z
2012
 
Type Article
 
Identifier PHYSICS LETTERS A, 376(45)3287-3289
http://dx.doi.org/10.1016/j.physleta.2012.09.038
http://dspace.library.iitb.ac.in/jspui/handle/100/16009
 
Language en