205 citations · 717 across the 22 of their papers we have counts for
22 papers
Planar Thermal Hall Effects in Kitaev Spin Liquid Candidate Na2Co2TeO6
Hikaru Takeda, Jiancong Mai, Masatoshi Akazawa +7
We investigate both the longitudinal thermal conductivity () and the planar thermal Hall conductivity () in the Kitaev spin liquid candidate of Co-based honeycomb a…
Weak-coupling to strong-coupling quantum criticality crossover in a Kitaev quantum spin liquid -RuCl
Jae-Ho Han, Seung-Hwan Do, Kwang-Yong Choi +5
We report an unprecedented quantum criticality crossover representing two different universal scaling behaviors in a Kitaev quantum magnetic material -RuCl. -RuCl pre…
Persistence of Ising-like easy-axis spin correlations in the paramagnetic state of the spin-1 chain compound NiTeO
Seung-Ho Baek, Jun Han Lee, Yoon Seok Oh +2
A Te nuclear magnetic resonance (NMR) study was carried out in the paramagnetic state of the recently discovered quasi-one-dimensional spin-1 chain compound NiTeO.…
Thermally populated versus field-induced triplon bound states in the Shastry-Sutherland lattice SrCu(BO)
Dirk Wulferding, Youngsu Choi, Seungyeol Lee +6
The Shastry-Sutherland compound SrCu(BO) constituting orthogonally coupled dimers harbors a singlet ground state. The confluence of strong interdimer interaction…
Dimer Crystallization Induced by Elemental Substitution in the Honeycomb Lattice of Ru1-xOsxCl3
Kota Kataoka, Dirk Wulferding, Takeshi Yajima +5
Substitution effects of Os for Ru in α-RuCl3 are investigated in a wide composition range of 0 =< x =< 0.67 in Ru1-xOsxCl3 by X-ray and electron diffraction, magnetic susceptibilit…
Unusual spin pseudogap behavior in the spin web lattice CuTeO probed by Te nuclear magnetic resonance
Seung-Ho Baek, Hyeon Woo Yeo, Jena Park +2
We present a Te nuclear magnetic resonance (NMR) study in the three-dimensional spin web lattice CuTeO, which harbors topological magnons. The Te NMR spectr…
Emergent nematicity and intrinsic vs. extrinsic electronic scattering processes in the kagome metal CsVSb
Dirk Wulferding, Seungyeol Lee, Youngsu Choi +9
Fermi surface fluctuations and lattice instabilities in the 2D metallic kagome superconductor CsVSb are elucidated via polarization-resolved Raman spectroscopy. The presenc…
Observation of a random singlet state in a diluted Kitaev honeycomb material
Seung-Ho Baek, Hyeon Woo Yeo, Seung-Hwan Do +4
We report a Cl nuclear magnetic resonance (NMR) study of the diluted Kitaev material -RuIrCl ( and ) where non-magnetic Ir dopants subs…
Magnon bound states vs. anyonic Majorana excitations in the Kitaev honeycomb magnet -RuCl
Dirk Wulferding, Youngsu Choi, Seung-Hwan Do +5
The pure Kitaev honeycomb model harbors a quantum spin liquid in zero magnetic fields, while applying finite magnetic fields induces a topological spin liquid with non-Abelian anyo…
Giant thermal magnetoconductivity in CrCl and a general model for spin-phonon scattering
Christopher A. Pocs, Ian A. Leahy, Hao Zheng +6
Insulating quantum magnets lie at the forefront both of fundamental research into quantum matter and of technological exploitation in the increasingly applied field of spintronics.…
Magnetic field-dependent low-energy magnon dynamics in -RuCl3
Ilkem Ozge Ozel, Carina A. Belvin, Edoardo Baldini +4
Revealing the spin excitations of complex quantum magnets is key to developing a minimal model that explains the underlying magnetic correlations in the ground state. We investigat…
Exotic low-energy excitations emergent in the random Kitaev magnet CuIrO
Y. S. Choi, C. H. Lee, S. Lee +11
We report on magnetization , dc/ac magnetic susceptibility , specific heat and muon spin relaxation (SR) measurements of the Kitaev honeycomb iri…
Sub-gap optical response across the structural phase transition in van der Waals layered α-RuCl
S. Reschke, F. Mayr, S. Widmann +7
We report magnetic, thermodynamic, thermal expansion, and on detailed optical experiments on the layered compound -RuCl focusing on the THz and sub-gap optical response acro…
Incarnation of Majorana Fermions in Kitaev Quantum Spin Lattice
Seung-Hwan Do, Sang-Youn Park, Junki Yoshitake +10
Kitaev quantum spin liquid is a topological magnetic quantum state characterized by Majorana fermions of fractionalized spin excitations, which are identical to their own antiparti…
Anomalous thermal conductivity and magnetic torque response in the honeycomb magnet -RuCl
Ian A. Leahy, Christopher A. Pocs, Peter E. Siegfried +5
We report on the unusual behavior of the in-plane thermal conductivity () and torque () response in the Kitaev-Heisenberg material -RuCl. shows a striking enhancem…
Doping effects on charge density instability in non-centrosymmetric PbxTaSe2
Azat Sharafeev, Raman Sankar, Alexander Glamazda +4
We report on the investigation of vibrational and electronic properties of the Pb doped dichalcogenide PbxTaSe2 using Raman scattering experiments. We observe a marked variation of…
Lattice and orbital fluctuations in TiPO4
Dirk Wulferding, Angela Möller, Kwang-Yong Choi +7
In the s = 1/2 antiferromagnetic spin chain material TiPO4 the formation of a spin gap takes place in a two step process with two characteristic temperatures, T*=111 K and TSP=74 K…
Softened magnetic excitations in the s = 3/2 distorted triangular antiferromagnet alpha-CaCr2O4
Dirk Wulferding, Kwang-Yong Choi, Peter Lemmens +5
The spin dynamics and magnetic excitations of the slightly distorted triangular s = 3/2 system alpha-CaCr2O4 are investigated by means of Raman spectroscopy and electron spin reson…
Coupled spin-lattice fluctuations in a compound with orbital degrees of freedom: the Cr based dimer system Sr3Cr2O8
Dirk Wulferding, Peter Lemmens, Kwang-Yong Choi +5
We report on an extended fluctuation regime in the spin dimer system Sr3Cr2O8 based on anomalies in Raman active phonons and magnetic scattering. The compound has two characteristi…
Interplay of electronic correlations and lattice instabilities in BaVS3
Kwang-Yong Choi, Dirk Wulferding, Helmuth Berger +1
The quasi-one-dimensional metallic system BaVS3 with a metal-insulator transition at T_MI=70 K shows large changes of the optical phonon spectrum, a central peak, and an electronic…
Anomalous frequency and intensity scaling of collective and local modes in a coupled spin tetrahedron system
Kwang-Yong Choi, Hiroyuki Nojiri, Naresh S. Dalal +3
We report on the magnetic excitation spectrum of the coupled spin tetrahedral system CuTeOCl using Raman scattering on single crystals. The transition to an…
AC susceptibility and V NMR study of MnVO
S. -H. Baek, K. -Y. Choi, A. P. Reyes +6
We report V zero-field NMR of manganese vanadate spinel of MnVO, together with both ac and dc magnetization measurements. The field and temperature dependence of ac…