Dislocations in Phase-Change Ge2Sb2Te5 Alloy
Characteristic 60° dislocations occurred in hexagonal phase of Ge2Sb2Te5 thin foil cooled from 500°C to room temperature in a high voltage transmission electron microscope. The Burgers vector of dislocation was identified as 1/ 24 < 9902 > which is the edge component of 1 3 < 2110 > projected on the (1120) lattice plane. The dislocation resulted from the cooling-induced stress/strain in the Ge2Sb2Te5 alloy.
Young Won Chang, Nack J. Kim and Chong Soo Lee
W. Zhang et al., "Dislocations in Phase-Change Ge2Sb2Te5 Alloy", Advanced Materials Research, Vols. 26-28, pp. 1097-1100, 2007