Alex Zunger

TL;DR: It is found from first-principles calculations that this mechanism explains strong ferromagnetic coupling between Co impurities in Cu2O, and at the same time gives rise to Co clustering.

TL;DR: In this paper, it was shown that the standard (decoupled) 6×6'k⋅p effective mass approach for semiconductor quantum dots overestimates significantly the hole and electron confinement energies, and, for dots made of materials with small spin-orbit coupling, produces a reverse order of s- and p-like valence states.

TL;DR: It is discovered that Au-rich Cu1-xAux and Pt-rich Ni1- xPtx contain a composition range in which there is a quasicontinuum of stable, ordered "adaptive structures" made of (001) repeat units of simple structural motifs.

TL;DR: In this paper, the theoretical understanding of the electronic properties of transition atom impurities in Si, III-V, and II-VI semiconductors is studied using a broad range of techniques, including optical absorption, luminescence, photocapacitance, photoconductivity, electron para-magnetic resonance (EPR), electron nuclear double resonance (ENDOR), deep level transient spectroscopy (DLTS), and Hall effect.

TL;DR: In this paper, the effects of shape, size and composition on the electronic and spectroscopic properties of self-assembled InAs/GaAs dots have been analyzed from experimentally collected data.