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Showing 2021 · cond-mat.str-elShow all
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cond-mat.str-el2021★ 16 cited
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…
cond-mat.str-el2021★ 13 cited
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…