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pro vyhledávání: '"Kanamori, A"'
Seminal Goodenough-Kanamori-Anderson (GKA) rules provide the inceptive understanding of the superexchange interaction of two magnetic metal ions bridged with an anion, and suggest fostered ferromagnetic interaction for orthogonal bridging bonds. Howe
Externí odkaz:
http://arxiv.org/abs/2309.15445
Density-functional-theory calculations were performed to investigate the magnetism in a series of triangular-lattice monolayer MCl2 (M=V, Mn, and Ni). The magnetic stability manifests a distinct chemical trend; VCl2 and MnCl2 show the antiferromagnet
Externí odkaz:
http://arxiv.org/abs/2308.06068
Autor:
Kaushal, Nitin, Dagotto, Elbio
Ab-initio and continuum model studies predicted that the $\Gamma$ valley transition metal dichalcogenide (TMD) homobilayers could simulate the conventional multi-orbital Hubbard model on the moir\'e Honeycomb lattice. Here, we perform the Wannierizat
Externí odkaz:
http://arxiv.org/abs/2303.02305
Akademický článek
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Akademický článek
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Publikováno v:
Physical Review B 106, L180401 (2022)
The on-site Coulomb repulsion $U$ is the key ingredient for describing the magnetic properties of Mott insulators, leading to a popular believe that many limitations of the density-functional theory based methods can be cured by artificially incorpor
Externí odkaz:
http://arxiv.org/abs/2205.08690
While excitonic instabilities in multiorbital systems recently have come under scrutiny in a variety of transition-metal compounds, understanding emergence of these instabilities from strong electronic interactions has remained a challenge. Here, we
Externí odkaz:
http://arxiv.org/abs/2112.04718
Publikováno v:
Phys. Rev. Research 3, 043213 (2021)
We study the electronic spectral properties at zero temperature of the one-dimensional (1D) version of the degenerate two-orbital Kanamori Hubbard model (KHM), one of the well established frameworks to study transition metal compounds, using state-of
Externí odkaz:
http://arxiv.org/abs/2112.03794
Autor:
Hallberg, K., Núñez-Fernández, Y.
Publikováno v:
Phys. Rev. B 102, 245138 (2020)
We calculate and resolve with unprecedented detail the local density of states (DOS) and momentum-dependent spectral functions at zero temperature of one of the key models for strongly correlated electron materials, the degenerate two-orbital Kanamor
Externí odkaz:
http://arxiv.org/abs/2007.14923
Autor:
Sherman, Alexei
Publikováno v:
Phys. Scr. 95, 095804 (2020)
The two-orbital Hubbard-Kanamori model is studied using the strong coupling diagram technique. This approach allows one to take into account the interactions of electrons with spin, charge, and orbital fluctuations of all ranges. It was found that, a
Externí odkaz:
http://arxiv.org/abs/2005.09901