TY - JOUR
T1 - Energy analysis of size-dependent elastic properties of ZnO nanofilms using atomistic simulations
AU - CAO, Guoxin
AU - CHEN, Xi
PY - 2007/10/5
Y1 - 2007/10/5
N2 - The size dependence of elastic modulus of ZnO nanofilms is investigated by using atomistic simulations. The strain energy and elastic stiffness of the surface and interior atomic layers, as well as interlayer interactions, are decoupled. The surface stiffness is found to be much lower than that of the interior layers and bulk counterpart, and with the decrease of film thickness, the residual tension-stiffened interior atomic layers are the main contributions of the increased elastic modulus of nanofilms.
AB - The size dependence of elastic modulus of ZnO nanofilms is investigated by using atomistic simulations. The strain energy and elastic stiffness of the surface and interior atomic layers, as well as interlayer interactions, are decoupled. The surface stiffness is found to be much lower than that of the interior layers and bulk counterpart, and with the decrease of film thickness, the residual tension-stiffened interior atomic layers are the main contributions of the increased elastic modulus of nanofilms.
UR - http://www.scopus.com/inward/record.url?scp=35148894449&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.76.165407
DO - 10.1103/PhysRevB.76.165407
M3 - Journal Article (refereed)
AN - SCOPUS:35148894449
SN - 1098-0121
VL - 76
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 16
M1 - 165407
ER -