Energetics of Slip Deformation in Beta-Sn: A First-Principles Study
The generalized stacking fault (GSF) energy surfaces of (110), (101), (121), (001), and(100) planes in -Sn are analyzed using first-principles density functional theory calculations. Fromthe minimum energy paths (MEPs) on the GSF energy surfaces analyzed, energetically preferableslip paths of 13 nonequivalent slip systems in -Sn are investigated. It is found that the MEP of(110)/2, (101), (101)/2, (121), and (121)/2 deviates from the straight linepath and takes a curve line path. The results indicate that perfect dislocations on these five slip systemsdissociate into partial dislocations as in cubic and hexagonal crystals.
Yeong-Maw Hwang and Cho-Pei Jiang
Y. Kinoshita and N. Ohno, "Energetics of Slip Deformation in Beta-Sn: A First-Principles Study", Key Engineering Materials, Vol. 626, pp. 46-49, 2015