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Surface Piezoelectricity of (0001) Sapphire
Alexandru B. Georgescu, Sohrab Ismail-Beigi
Interfaces of sapphire are of technological relevance as sapphire is used as a substrate in electronics, lasers, and Josephson junctions for quantum devices. In addition, its surfa…
Imaginary time, shredded propagator method for large-scale GW calculations
Minjung Kim, Glenn J. Martyna, Sohrab Ismail-Beigi
The GW method is a many-body approach capable of providing quasiparticle bands for realistic systems spanning physics, chemistry, and materials science. Despite its power, GW is no…
Symmetry Breaking in Occupation Number Based Slave-Particle Methods
Alexandru B. Georgescu, Sohrab Ismail-Beigi
We describe a theoretical approach for finding spontaneously symmetry-broken electronic phases due to strong electronic interactions when using recently developed slave-particle (s…