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19942026
most citedNew Tolerance Factor to Predict the Stability of Perovskite Oxides and Halides

1.8k citations

Showing 2004Show all

7 papers · 1 filter

cond-mat.mtrl-sci2004★ 25 cited

Asymmetry in self-assembled quantum dot-molecules made of identical InAs/GaAs quantum dots

Lixin He, Gabriel Bester, Alex Zunger

We show that a diatomic dot molecule made of two identical, vertically stacked, strained InAs/GaAs self-assembled dots exhibits an asymmetry in its single-particle and may-particle…

cond-mat.other2004★ 73 cited

Trends in ferromagnetism, hole localization, and acceptor level depth for Mn substitution in

Priya Mahadevan, Alex Zunger

We examine the intrinsic mechanism of ferromagnetism in dilute magnetic semiconductors by analyzing the trends in the electronic structure as the host is changed from GaN to GaP, G…

cond-mat.other2004★ 146 cited

Unusual direction dependence of exchange energies in GaAs:Mn - Is the RKKY description relevant

Priya Mahadevan, Alex Zunger, D. D. Sarma +1

Ferromagnetism in Mn-doped GaAs, the prototypical dilute magnetic semiconductor, has so far been attributed to hole mediated RKKY-type interactions. First-principles calculations r…

cond-mat.mtrl-sci2004★ 90 cited

Theory of excitonic spectra and entanglement engineering in dot molecules

Gabriel Bester, J. Shumway, Alex Zunger

We present results of correlated pseudopotential calculations of an exciton in a pair of vertically stacked InGaAs/GaAs dots. Competing effects of strain, geometry, and band mixing…

cond-mat.mtrl-sci2004★ 29 cited

Metal-nonmetal transition and excitonic ground state in InAs/InSb quantum dots

Lixin He, Gabriel Bester, Alex Zunger

Using atomistic pseudopotential and configuration-interaction many-body calculations, we predict a metal-nonmetal transition and an excitonic ground state in the InAs/InSb quantum…

cond-mat.mtrl-sci2004★ 167 cited

Calculated spin-orbit splitting of all diamond-like and zinc-blende semiconductors: Effects of p1/2 local orbitals and chemical trends

Pierre Carrier, Su-Huai Wei

e have calculated the spin-orbit (SO) splitting for all diamond-like group IV and zinc-blende group III-V, II-VI, and I-VII semiconductors using the…

cond-mat.dis-nn2004★ 1.4k cited

Structural Vulnerability of the North American Power Grid

Reka Albert, Istvan Albert, Gary L. Nakarado

The magnitude of the August 2003 blackout affecting the United States has put the challenges of energy transmission and distribution into limelight. Despite all the interest and co…