65 citations · 247 across the 18 of their papers we have counts for
18 papers
Quantum fluctuation effects on the ordered Moments in a two dimensional frustrated ferrimagnet
Kingshuk Majumdar, Subhendra D. Mahanti
We propose a novel two-dimensional (2D)frustrated quantum spin-1/2 anisotropic Heisenberg model with alternating ferromagnetic and antiferromagnetic magnetic chains along one direc…
Spin dynamics of antiferromagnetically coupled ferromagnetic bilayers -- the case of CrWO and CrMoO
Kingshuk Majumdar, Subhendra D. Mahanti
Recent inelastic neutron diffraction measurements on Cr(Te, W, Mo)O have revealed that these systems consist of bilayers of spin-3/2 Cr ions with strong antiferromag…
Spin dynamics of antiferromagnetically coupled bilayers - the case of Cr_2TeO_6
Kingshuk Majumdar, S. D. Mahanti
Understanding the dynamics of interacting quantum spins has been one of the active areas of condensed matter physics research. Recently, extensive inelastic neutron scattering meas…
Varied Perturbation Theory for the Dispersion Dip in the Two-Dimensional Heisenberg Quantum Antiferromagnet
Goetz S. Uhrig, Kingshuk Majumdar
We study the roton-like dip in the magnon dispersion at the boundary of the Brillouin zone in the isotropic S=1/2 Heisenberg quantum antiferromagnet. This high-energy feature is so…
Effects of ring exchange interaction on the Neel phase of two-dimensional, spatially anisotropic, frustrated Heisenberg quantum antiferromagnet
Kingshuk Majumdar, Douglas Furton, Goetz S. Uhrig
Higher order quantum effects on the magnetic phase diagram induced by four-spin ring exchange on plaquettes are investigated for a two-dimensional quantum antiferromagnet with S=1/…
Spin-wave energy dispersion of a frustrated spin-1/2 Heisenberg antiferromagnet on a stacked square lattice
Kingshuk Majumdar
Effects of interlayer coupling and spatial anisotropy on spin-wave excitation spectra of a three-dimensional spatially anisotropic, frustrated spin-$\half$ Heisenberg antiferromagn…