Meaning of semivacancy | Babel Free

Definitions

A vacancy defect in which two adjacent lattice sites are unoccupied and an atom occupies the interstitial site between the two vacant sites.

Examples

“The semivacancies are separated by a variable number of Ge adatoms in metastable T₄ positions and can diffuse or eventually merge back into a single vacancy.”

“In the undistorted configurations both a divacancy and a semivacancy pair belong to the symmetry point group D3d .”

CEFR level