682 citations · 1.2k across the 17 of their papers we have counts for
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The nature of the electronic band gap in lanthanide oxides
Roland Gillen, Stewart J. Clark, John Robertson
Accurate electronic structures of the technologically important lanthanide/rare earth sesquioxides (Ln2O3, with Ln=La,...,Lu) and CeO2 have been calculated using hybrid density fun…
Calculation of point defects in rutile TiO2 by the Screened Exchange Hybrid Functional
Hsin-Yi Lee, Stewart J. Clark, John Robertson
The formation energies of the oxygen vacancy and titanium interstitial in rutile TiO2 were calculated by the screened exchange (sX) hybrid density functional method, which gives a…
Optimized Effective Potential Using The Hylleraas Variational Method
Tom W. Hollins, Stewart J. Clark, Keith Refson +1
In electronic structure calculations the optimized effective potential (OEP) is a method that treats exchange interactions exactly using a local potential within density-functional…