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cond-mat.str-el2020★ 5 cited
Magnetic field induced topological nodal-lines in triplet excitations of frustrated antiferromagnet CaVO
Moumita Deb, Asim Kumar Ghosh
Magnetic field induced multiple non-Dirac nodal-lines are found to emerge in the triplet dispersion bands of a frustrated spin-1/2 antiferromagnetic model on the CaVO lattice. Plaq…
cond-mat.str-el2018
Exotic topological point and line nodes in the plaquette excitations of a frustrated Heisenberg antiferromagnet on the honeycomb lattice
Moumita Deb, Asim Kumar Ghosh
A number of topological nodes including Dirac, quadratic and triple band touching points as well as a pair of degenerate Dirac line nodes are found to emerge in the triplet plaquet…