544 citations · 3.8k across the 81 of their papers we have counts for
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Theory of magnetic field-induced metaelectric critical end point in BiMnO
Gun Sang Jeon, Jin-Hong Park, Kee Hoon Kim +1
A recent experiment on the multiferroic BiMnO compound under a strong applied magnetic field revealed a rich phase diagram driven by the coupling of magnetic and charge (di…
Observation of a multiferroic critical end point
Jae Wook Kim, S. Y. Haam, Y. S. Oh +9
The study of abrupt increases in magnetization with magnetic field known as metamagnetic transitions has opened a rich vein of new physics in itinerant electron systems, including…
Chiral spin states in the pyrochlore Heisenberg magnet: Fermionic mean-field theory and variational Monte Carlo calculations
Jung Hoon Kim, Jung Hoon Han
Fermionic mean-field theory and variational Monte Carlo calculations are employed to shed light on the possible uniform ground states of the Heisenberg model on the pyrochlore latt…
Quantum Dynamics of Multiferroic Helimagnets: a Schwinger-Boson Approach
Hosho Katsura, Shigeki Onoda, Jung Hoon Han +1
We study the quantum dynamics/fluctuation of the cycloidal helical magnet in terms of the Schwinger boson approach. In sharp contrast to the classical fluctuation, the quantum fluc…
Nematic and chiral orders for planar spins on triangular lattice
Jin-Hong Park, Shigeki Onoda, Naoto Nagaosa +1
We propose a variant of the antiferromagnetic XY model on the triangular lattice to study the interplay between the chiral and nematic orders in addition to the magnetic order. The…