Understanding the Magnetic Behavior of CoNb<sub>2</sub>O<sub>6</sub> and cousin compounds: Insights from ab-initio Modeling
ORAL
Abstract
The magnetic properties of low-dimensional systems continue to attract attention, particularly in compounds featuring transition metal ions with partially filled d-orbitals. The discussed properties include dominant or antiferromagnetic Kitaev interactions or diverse parametrizations of the quasi-one-dimensional ferromagnet CoNb2O6.
We employ an ab-initio based model to investigate the magnetism within this family of materials. The approach involves the modeling of an ab-initio derived Hubbard Hamiltonian and utilizing projective diagonalization techniques to construct a Spin Hamiltonian.
This presentation discusses the results of our theoretical modeling approach in the context of experimental observations, giving insights into the microscopic origins of the effective magnetic interactions in CoNb2O6 and related compounds.
We employ an ab-initio based model to investigate the magnetism within this family of materials. The approach involves the modeling of an ab-initio derived Hubbard Hamiltonian and utilizing projective diagonalization techniques to construct a Spin Hamiltonian.
This presentation discusses the results of our theoretical modeling approach in the context of experimental observations, giving insights into the microscopic origins of the effective magnetic interactions in CoNb2O6 and related compounds.
*We acknowledge support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) for funding through project TRR 288 and through QUAST-FOR5249.
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Publication: "Understanding the microscopic origin of the magnetic interactions in CoNb2O6": arXiv:2406.17854
Presenters
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Amanda A Konieczna
- Goethe University Frankfurt