471 citations · 1.1k across the 19 of their papers we have counts for
19 papers
Range of biquadratic and triquadratic Heisenberg effective couplings deduced from multiorbital Hubbard models
Rahul Soni, Nitin Kaushal, Cengiz Şen +3
We studied a multi-orbital Hubbard model at half-filling for two and three orbitals per site on a two-site cluster via full exact diagonalization, in a wide range for the onsite re…
Oxygen magnetic polarization, nodes in spin density, and zigzag spin order in oxides
Ling-Fang Lin, Nitin Kaushal, Cengiz Şen +3
Recent DFT calculations for Ba2CoO4 (BCO) and neutron scattering experiments for SrRuO3 (SRO) have shown that oxygen develops a magnetic polarization. Moreover, DFT calculations fo…
Dynamic defect correlations dominate activated electronic transport in SrTiO3
Paul C. Snijders, Cengiz Şen, Michael P. McConnell +5
Strontium titanate (SrTiO3, STO) is a critically important material for the study of emergent electronic phases in complex oxides, as well as for the development of applications ba…
Anisotropy of Electrical Transport in Pnictide Superconductors Studied Using Monte Carlo Simulations of the Spin-Fermion Model
Shuhua Liang, Gonzalo Alvarez, Cengiz Şen +2
The undoped three-orbital spin fermion model for the Fe-based superconductors is studied via Monte Carlo techniques in two-dimensional clusters. At low temperatures, the magnetic a…
Complex State Found in the CMR Regime of Models for Colossal Magnetoresistive Manganites
Cengiz Sen, Shuhua Liang, Elbio Dagotto
In this report, we study in detail the competitor to the FM metallic state at electronic density in the CMR regime using the two-orbital double-exchange model with Jahn-Tel…
Emergent dimensional reduction of the spin sector in a model for narrow-band manganites
Shuhua Liang, Maria Daghofer, Shuai Dong +2
The widely used Double-Exchange model for manganites is shown to support various "striped" phases at filling fractions 1/n (n=3, 4, 5...), in the previously unexplored regime of na…