80 citations · 366 across the 9 of their papers we have counts for
9 papers
Spin texture induced by non-magnetic doping and spin dynamics in 2D triangular lattice antiferromagnet h-Y(Mn,Al)O3
Pyeongjae Park, Kisoo Park, Joosung Oh +14
Novel effects induced by nonmagnetic impurities in frustrated magnets and quantum spin liquid represent a highly nontrivial and interesting problem. A theoretical proposal of exten…
Magnetic Excitations in Non-Collinear Antiferromagnetic Weyl Semimetal
Pyeongjae Park, Joosung Oh, Klára Uhlířová +10
has recently attracted considerable attention as a magnetic Weyl semimetal exhibiting concomitant transport anomalies at room temperature. The topology of the e…
Renormalization of spin excitations in hexagonal HoMnO3 by magnon-phonon coupling
Taehun Kim, Jonathan C. Leiner, Kisoo Park +5
Hexagonal HoMnO3, a two-dimensional Heisenberg antiferromagnet, has been studied via inelastic neutron scattering. A simple Heisenberg model with a single-ion anisotropy describes…
Magnetic excitations in bulk multiferroic two-dimensional triangular lattice antiferromagnet (Lu,Sc)FeO
J. C. Leiner, Taehun Kim, Kisoo Park +7
Non-collinear two-dimensional triangular lattice antiferromagnets (2D TLAF) are currently an area of very active research due to their unique magnetic properties, which lead to non…
Magnetic excitations of the Cu quantum spin chain in SrCuPtO
J. C. Leiner, Joosung Oh, A. I. Kolesnikov +10
We report the magnetic excitation spectrum as measured by inelastic neutron scattering for a polycrystalline sample of SrCuPtO. Modeling the data by the 2+4 spinon contribu…
Spontaneous decays of magneto-elastic excitations in noncollinear antiferromagnet (Y,Lu)MnO3
Joosung Oh, Manh Duc Le, Ho-Hyun Nahm +12
When magnons and phonons, the fundamental quasiparticles of the solid, are coupled to one another, they form a new hybrid quasi-particle, leading to novel phenomena and interesting…
Magnon-phonon coupling and two-magnon continuum in two-dimensional triangular antiferromagnet CuCrO2
Kisoo Park, Joosung Oh, Jonathan C. Leiner +4
CuCrO2 is a manifestation of a two-dimensional triangular antiferromagnet which exhibits an incommensurate noncollinear magnetic structure similar to a classical 120 degree orderin…
Hexagonal RMnO: a model system for 2D triangular lattice antiferromagnets
Hasung Sim, Joosung Oh, Jaehong Jeong +2
The hexagonal RMnO (h-RMnO) are multiferroic materials, which exhibit the coexistence of a magnetic order and ferroelectricity. Their distinction is in their geometry that…
Magnon breakdown in a two dimensional triangular lattice Heisenberg antiferromagnet of multiferroic LuMnO
Joosung Oh, Manh Duc Le, Jaehong Jeong +7
The breakdown of magnons, the quasiparticles of magnetic systems, has rarely been seen. By using an inelastic neutron scattering technique we report the observation of spontaneous…