Maximally localized Wannier functions within the (L)APW+LO method

Abstract

We present a robust algorithm that computes (maximally localized) Wannier functions (WFs) without the need of providing an initial guess. Instead, a suitable starting point is constructed automatically from so-called local orbitals which are fundamental building blocks of the basis set within (linearized) augmented planewave methods. Our approach is applied to a vast variety of materials such as metals, bulk and low-dimensional semiconductors, and complex inorganic-organic hybrid interfaces. For the interpolation of electronic single-particle energies, an accuracy in the meV range can be easily achieved. We exemplify the capabilities of our method by the calculation of the joint density of states in aluminum, (generalized) Kohn-Sham and quasi-particle band structures in various semiconductors, and the electronic structure of $\beta$-Ga${}_2$O${}_3$, including electron and hole effective masses.

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Cited by in corpus (5)

• Perturbation approach to ab initio effective mass calculations
• The Wannier Function Software Ecosystem for Materials Simulations
• A consistent picture of excitations in cubic BaSnO${}_3$ revealed by combining theory and experiment
• Fingerprints of optical absorption in the perovskite LaInO${}_3$: Insight from many-body theory and experiment
• Hybrid Frenkel-Wannier excitons facilitate ultrafast energy transfer at a 2D-organic interface