Abstract
Electronic and ground-state properties of the binary In compounds in the zinc-blende structure are reported. They are evaluated in the local-density approximation using norm-conserving nonlocal pseudopotentials. Besides the lattice constant, the bulk modulus, and its first and second pressure derivative, the first- and second-order pressure coefficients of the main band gaps (at \ensuremath{\Gamma}, X, and L) are given. The hydrostatic deformation potentials and the crossover pressure from direct to indirect band gap are presented and compared with recent experimental values.
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