Stability of germanene under tensile strain

Handle URI:
http://hdl.handle.net/10754/562947
Title:
Stability of germanene under tensile strain
Authors:
Kaloni, Thaneshwor P.; Schwingenschlögl, Udo ( 0000-0003-4179-7231 )
Abstract:
The stability of germanene under biaxial tensile strain and the accompanying modifications of the electronic properties are studied by density functional theory. The phonon spectrum shows that up to 16% strain the germanene lattice is stable, where the Dirac cone shifts towards higher energy and hole-doped Dirac states are achieved. The latter is due to weakening of the Ge-Ge bonds and reduction of the s-p hybridization. Our calculated Grüneisen parameter shows a similar dependence on the strain as reported for silicene (which is different from that of graphene). © 2013 Elsevier B.V. All rights reserved.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Computational Physics and Materials Science (CPMS)
Publisher:
Elsevier BV
Journal:
Chemical Physics Letters
Issue Date:
Sep-2013
DOI:
10.1016/j.cplett.2013.08.001
ARXIV:
arXiv:1311.2807
Type:
Article
ISSN:
00092614
Additional Links:
http://arxiv.org/abs/arXiv:1311.2807v1
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Computational Physics and Materials Science (CPMS)

Full metadata record

DC FieldValue Language
dc.contributor.authorKaloni, Thaneshwor P.en
dc.contributor.authorSchwingenschlögl, Udoen
dc.date.accessioned2015-08-03T11:16:38Zen
dc.date.available2015-08-03T11:16:38Zen
dc.date.issued2013-09en
dc.identifier.issn00092614en
dc.identifier.doi10.1016/j.cplett.2013.08.001en
dc.identifier.urihttp://hdl.handle.net/10754/562947en
dc.description.abstractThe stability of germanene under biaxial tensile strain and the accompanying modifications of the electronic properties are studied by density functional theory. The phonon spectrum shows that up to 16% strain the germanene lattice is stable, where the Dirac cone shifts towards higher energy and hole-doped Dirac states are achieved. The latter is due to weakening of the Ge-Ge bonds and reduction of the s-p hybridization. Our calculated Grüneisen parameter shows a similar dependence on the strain as reported for silicene (which is different from that of graphene). © 2013 Elsevier B.V. All rights reserved.en
dc.publisherElsevier BVen
dc.relation.urlhttp://arxiv.org/abs/arXiv:1311.2807v1en
dc.titleStability of germanene under tensile strainen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentComputational Physics and Materials Science (CPMS)en
dc.identifier.journalChemical Physics Lettersen
dc.identifier.arxividarXiv:1311.2807en
kaust.authorKaloni, Thaneshwor P.en
kaust.authorSchwingenschlögl, Udoen
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