Full potential linearized augmented plane wave structures

Jansen H J F and Freeman A J 1984 Total-energy full-potential linearized augmented plane-wave method for bulk solids electronic and structural properties of tungsten Phys. Rev. B 30 561-9... 

There are a number of band-structure methods that make varying approximations in the solution of the Kohn-Sham equations. They are described in detail by Godwal et al. (1983) and Srivastava and Weaire (1987), and we shall discuss them only briefly. For each method, one must eon-struct Bloch functions delocalized by symmetry over all the unit cells of the solid. The methods may be conveniently divided into (1) pesudopo-tential methods, (2) linear combination of atomic orbital (LCAO) methods (3) muffin-tin methods, and (4) linear band-structure methods. The pseudopotential method is described in detail by Yin and Cohen (1982) the linear muffin-tin orbital method (LMTO) is described by Skriver (1984) the most advanced of the linear methods, the full-potential linearized augmented-plane-wave (FLAPW) method, is described by Jansen... 

However, a complete physical Me UPD model does not yet exist. Recently, calculations based on a jellium model with lattices of pseudopotentials for the 2D Meads phase and S were started by Schmickler and Leiva [3.234-3.239]. In addition, local density full potential linearized augmented plane wave calculations were carried out by Neckel [3.240, 3.241). Both approaches are important for a better understanding of Me UPD phenomena on single crystal surfaces taking into account structural aspects. 

The band structures of y-BN and (3-BN have been calculated (In context with that of a-BN) by a full-potential, linear, augmented-plane-wave (FLAPW) treatment. This Is the first ab Initio calculation for y-BN. The obtained energy band structure for y-BN is depicted In Fig. 4-22. Like a-BN (see Section 4.1.1.5, p. 38), y-BN is also an indirect gap Insulator. The gap of 4.9 eV Is produced by the valence band maximum at T and the conduction band minimum at K. The direct band gap (T-T) is 8.2 eV. The Brillouin zone of y-BN corresponds to that of a-BN [1]. 

Electronic To have access to electronic properties, electronic structure and band symmetries, atomic orbitals approximation are no longer valuable [69]. EHian et al. used the full-potential linear-augmented plane-wave (FLAPW) method and the exchange-correlation potential treated in GGA, to reveal electronic properties... 

The main area of application of XANES calculations is in structural research, and obviously the translational symmetry necessary for a A -space calculation of XANES is of limited use in this context. However A-space calculations on crystalline materials are of interest when investigating the influence of various approximations. Programs which find a DFT ground state and also have an option for a XANES calculation are now available from a number of sources, using full-potential linear augmented plane wave (FPLAPW) or linearized muffin-tin orbital (LMTO) schemes. To date none of these schemes include the effects of a core hole. 

TABLES 1 and 2 show the calculated and measured results of splitting energies in WZ and ZB structures, respectively. Suzuki et al derived the values of A and Ar for WZ and ZN GaN and AIN from a full-potential linearised augmented plane wave (FLAPW) and band calculation [3,4], Another result with LAPW calculation was given by Wei and Zunger [5], Kim et al [6] determined them by the linear muffm-tin orbital (LMTO) method within the atomic sphere approximation (ASA). Majewski... 

Wimmer E, Krakauer H, Weinert M and Freeman A J 1981 Full-potential self-consistent linearized-augmented-plane-wave method for calculating the electronic structure of molecules and surfaces O2 molecule Phys. Rev. B 24 864... 

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