TY - JOUR
T1 - Stability of germanene under tensile strain
AU - Kaloni, Thaneshwor P.
AU - Schwingenschlögl, Udo
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2013/9
Y1 - 2013/9
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/562947
UR - http://arxiv.org/abs/arXiv:1311.2807v1
UR - http://www.scopus.com/inward/record.url?scp=84885658883&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2013.08.001
DO - 10.1016/j.cplett.2013.08.001
M3 - Article
SN - 0009-2614
VL - 583
SP - 137
EP - 140
JO - Chemical Physics Letters
JF - Chemical Physics Letters
ER -