278 citations · 1.6k across the 25 of their papers we have counts for
21 papers · 1 filter
Ferromagnetic domains in the large- Hubbard model with a few holes: an FCIQMC study
Sujun Yun, Werner Dobrautz, Hongjun Luo +3
Two-dimensional Hubbard lattices with two or three holes are investigated as a function of in the large- limit. In the so-called Nagaoka limit (one-hole system at infinite $…
Ab initio wavefunction analysis of electron removal quasi-particle state of NdNiO with fully correlated quantum chemical methods
Vamshi M. Katukuri, Nikolay A. Bogdanov, Ali Alavi
The discovery of superconductivity in hole-doped infinite-layer NdNiO -- a transition metal (TM) oxide that is both isostructural and isoelectronic to cuprate superconductors -…
Combined unitary and symmetric group approach applied to low-dimensional spin systems
Werner Dobrautz, Vamshi M. Katukuri, Nikolay A. Bogdanov +3
A novel combined unitary and symmetric group approach is used to study the spin- Heisenberg model and related Fermionic systems in a spin-adapted representation, using…
Charge ordering in Ir dimers in the ground state of BaAlIrO
Vamshi M. Katukuri, Xingye Lu, D. E. McNally +8
It has been well established experimentally that the interplay of electronic correlations and spin-orbit interactions in Ir and Ir oxides results in insulating J$_{\r…
Electronic correlations and magnetic interactions in infinite-layer NdNiO
Vamshi M. Katukuri, Nikolay A. Bogdanov, Oskar Weser +2
The large antiferromagnetic exchange coupling in the parent high- cuprate superconductors is believed to play a crucial role in pairing the superconducting carriers. The…
Exchange Interactions Mediated by Non-Magnetic Cations in Double Perovskites
Vamshi M. Katukuri, P. Babkevich, O. Mustonen +6
Establishing the physical mechanism governing exchange interactions is fundamental for exploring exotic phases such as the quantum spin liquids (QSLs) in real materials. In this wo…