163 citations · 415 across the 14 of their papers we have counts for
14 papers
Bond-dependent anisotropy and magnon decay in cobalt-based Kitaev triangular antiferromagnet
Chaebin Kim, Sujin Kim, Pyeongjae Park +9
The Kitaev model, a honeycomb network of spins with bond-dependent anisotropic interactions, is a rare example of having a quantum spin liquid ground state. Although most Kitaev mo…
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…
Experimental determination of the magnetic interactions of frustrated Cairo pentagon lattice materials
Manh Duc Le, Elisa M. Wheeler, Jaehong Jeong +14
We present inelastic neutron scattering measurements of the Cairo pentagon lattice magnets BiFeO and BiFeOF, supported by high field magnetisation measur…
Field-induced quantum spin disordered state in spin-1/2 honeycomb magnet Na2Co2TeO6
Gaoting Lin, Jaehong Jeong, Chaebin Kim +25
Spin-orbit coupled honeycomb magnets with the Kitaev interaction have received a lot of attention due to their potential of hosting exotic quantum states including quantum spin liq…
Spin-orbit coupling effects on spin-phonon coupling in Cd2Os2O7
Taehun Kim, Choong H. Kim, Jaehong Jeong +8
Spin-orbit coupling (SOC) is essential in understanding the properties of 5d transition metal compounds, whose SOC value is large and almost comparable to other key parameters. Ove…
Spin-waves in 2D honeycomb lattice -type van der Waals antiferromagnet CoPS
Chaebin Kim, Jaehong Jeong, Takatsugu Masuda +5
The magnetic excitations in CoPS, a two-dimensional van der Waals (vdW) antiferromagnet with spin on a honeycomb lattice, has been measured using powder inelastic neutr…
Dynamic Spin Fluctuations in the Frustrated A-site Spinel CuAl2O4
Hwanbeom Cho, R. Nirmala, Jaehong Jeong +7
We performed nuclear magnetic resonance (NMR) and muon spin relaxation (μSR) experiments to identify the magnetic ground state of the frustrated quantum A-site spinel, CuAl2O4. Our…
Momentum-dependent magnon lifetime in the metallic non-collinear triangular antiferromagnet CrB2
Pyeongjae Park, Kisoo Park, Taehun Kim +8
Non-collinear magnetic order arises for various reasons in several magnetic systems and exhibits interesting spin dynamics. Despite its ubiquitous presence, little is known of how…
Loop Currents in Two-leg Ladder Cuprates
Dalila Bounoua, Lucile Mangin-Thro, Jaehong Jeong +4
New phases with broken discrete Ising symmetries are uncovered in quantum materials with strong electronic correlations. The two-leg ladder cuprate \textbf{$Sr_{14-x}Ca_{x}Cu_{24}O…
Magnetization density distribution of SrIrO: Deviation from a local picture
Jaehong Jeong, Benjamin Lenz, Arsen Gukasov +10
iridium oxides are of huge interest due to the potential for new quantum states driven by strong spin-orbit coupling. The strontium iridate SrIrO is particularly in th…
Evidence for Intra-Unit Cell Magnetism in Superconducting Cuprates: a Technical Assessment
Philippe Bourges, Dalila Bounoua, Jaehong Jeong +2
Intra unit cell (IUC) magnetic order observed by polarized neutron diffraction (PND) is one of the hallmarks of the pseudogap state of high-temperature copper oxide superconductors…
Orientation of the intra-unit-cell magnetic moment in the high-Tc superconductor HgBa2CuO
Yang Tang, Lucile Mangin-Thro, Andrew Wildes +6
Polarized-neutron diffraction experiments (PND) have revealed that the pseudogap state of the cuprates exhibits unusual intra-unit-cell (IUC) magnetism. At a qualitative level, the…
Giant thermal hysteresis in Verwey transition of single domain Fe3O4 nanoparticles
Taehun Kim, Sumin Lim, Jaeyoung Hong +12
Most interesting phenomena of condensed matter physics originate from interactions among different degrees of freedom, making it a very intriguing yet challenging question how cert…
Studies on the high-temperature ferroelectric transition of multiferroic hexagonal manganite RMnO3
Hasung Sim, Jaehong Jeong, Haeri Kim +2
Hexagonal manganites are multiferroic materials with two highly-dissimilar phase transitions: a ferroelectric transition (from P63/mmc to P63cm) at a temperature higher than 1000 K…