139 citations · 1.4k across the 39 of their papers we have counts for
28 papers · 1 filter
Thermal Transport of Fractionalized Antiferromagnetic and Field Induced States in the Kitaev Material NaCoTeO
S. K. Guang, N. Li, R. L. Luo +9
We report an in-plane thermal transport study of the honeycomb Kitaev material NaCoTeO at subKelvin temperatures. In zero field, the displays a rather weak -d…
Temperature-induced valence-state transition in double perovskite Ba2-xSrxTbIrO6
Z. Y. Zhao, S. Calder, H. D. Zhou +3
In this work, a temperature-induced valence-state transition is studied in a narrow composition range of BaSrTbIrO. The valence-state transition involves an electro…
Spin-orbit coupling controlled ground states in the double perovskite iridates A2BIrO6 (A = Ba, Sr; B = Lu, Sc)
A. A. Aczel, Q. Chen, J. P. Clancy +11
Iridates with the 5 electronic configuration have attracted recent interest due to reports of magnetically-ordered ground states despite longstanding expectations that their s…
Magnon-Polaron Driven Thermal Hall Effect in a Heisenberg-Kitaev Antiferromagnet
N. Li, R. R. Neumann, S. K. Guang +16
The thermal Hall effect, defined as a heat current response transversal to an applied temperature gradient, is a central experimental probe of exotic electrically insulating phases…
High-field magnetic structure of the triangular antiferromagnet RbFe(MoO4)2
Yu. A. Sakhratov, O. Prokhnenko, A. Ya. Shapiro +4
The magnetic H - T phase diagram of a quasi-two-dimensional antiferromagnet RbFe(MoO4)2 with an equilateral triangular lattice structure is studied with 87Rb NMR and neutron diffra…
Dual Orbital Degeneracy Lifting in a Strongly Correlated Electron System
R. J. Koch, R. Sinclair, M. T. McDonnell +8
The local structure of NaTiSiO is examined across its Ti-dimerization orbital-assisted Peierls transition at 210 K. An atomic pair distribution function approach eviden…
Search for a nematic phase in quasi-2D antiferromagnet CuCrO2 by NMR in electric field
Yu. A. Sakhratov, J. J. Kweon, E. S. Choi +3
The magnetic phase diagram of CuCrO2 was studied with a novel method of simultaneous Cu NMR and electric polarization techniques with the primary goal of demonstrating that regardl…
Frustrated spin-1/2 molecular magnetism in the mixed-valence antiferromagnets Ba3MRu2O9 (M = In, Y, Lu)
D. Ziat, A. A. Aczel, R. Sinclair +6
We have performed magnetic susceptibility, heat capacity, muon spin relaxation, and neutron scattering measurements on three members of the family Ba3MRu2O9, where M = In, Y and Lu…
The nature of spin excitations in the one-third magnetization plateau phase of BaCoSbO
Y. Kamiya, L. Ge, Tao Hong +10
Magnetization plateaus in quantum magnets---where bosonic quasiparticles crystallize into emergent spin superlattices---are spectacular yet simple examples of collective quantum ph…
Ba8CoNb6O24: a spin-1/2 triangular-lattice Heisenberg antiferromagnet in the 2D limit
R. Rawl, L. Ge, H. Agrawal +11
The perovskite Ba8CoNb6O24 comprises equilateral effective spin-1/2 Co2+ triangular layers separated by six non-magnetic layers. Susceptibility, specific heat and neutron scatterin…
Structural and magnetic properties of two branches of the Tripod Kagome Lattice family ARESbO (A = Mg, Zn; RE = Pr, Nd, Gd, Tb, Dy, Ho, Er, Yb)
Z. L. Dun, J. Trinh, M. Lee +7
We present a systematic study of the structural and magnetic properties of two branches of the rare earth Tripod Kagome Lattice (TKL) family ARESbO (A = Mg…
Magnetic phases of quasi-two-dimensional antiferromagnet on triangular lattice CuCrO
Yu. A. Sakhratov, L. E. Svistov, P. L. Kuhns +2
We have carried out Cu NMR spectra measurements in magnetic field up to about 45~T on single crystal of a multiferroic triangular antiferromagnet CuCrO. The measureme…
Revisiting the ground state of CoAlO: comparison to the conventional antiferromagnet MnAlO
G. J. MacDougall, A. A. Aczel, Yixi Su +8
The A-site spinel material, CoAl2O4, is a physical realization of the frustrated diamond-lattice antiferromagnet, a model in which is predicted to contain unique incommensurate or…
Structural and Magnetic Phase Transitions in CeCu ( = Ag, Pd)
L. Poudel, C. de la Cruz, E. A. Payzant +18
The structural and the magnetic properties of CeCuAg (0 0.85) and CeCuPd (0 0.4) have been studied using neutron diffrac…
Low-temperature thermal conductivity of Dy_2Ti_2O_7 and Yb_2Ti_2O_7 single crystals
S. J. Li, Z. Y. Zhao, C. Fan +8
We study the low-temperature thermal conductivity (κ) of Dy_2Ti_2O_7 and Yb_2Ti_2O_7 single crystals in magnetic fields up to 14 T along the [111], [100] and [110] directions. The…
Static and Dynamical Properties of the Spin-1/2 Equilateral Triangular-Lattice Antiferromagnet BaCoSbO
J. Ma, Y. Kamiya, Tao Hong +7
We present single-crystal neutron scattering measurements of the spin-1/2 equilateral triangular lattice antiferromagnet BaCoSbO. Besides confirming that the Co…
Structural transition and orbital glass physics in near itinerant CoV2O4
D. Reig-i-Plessis, D. Casavant, V. O. Garlea +6
The ferrimagnetic spinel has been a topic of intense recent interest, both as a frustrated insulator with unquenched orbital degeneracy and as a near-itinerant…
Magnon spectra and strong spin-lattice coupling in magnetically frustrated MnB2O4 (B = Mn,V): Inelastic light scattering studies
S. L. Gleason, T. Byrum, Y. Gim +6
The ferrimagnetic spinels MnB2O4 (B = Mn,V) exhibit a similar series of closely spaced magnetic and structural phase transitions at low temperatures, reflecting both magnetic frust…
Strong competition between orbital-ordering and itinerancy in a frustrated spinel vanadate
J. Ma, J. H. Lee, S. E. Hahn +11
The crossover from localized- to itinerant-electron behavior is associated with many intriguing phenomena in condensed-matter physics. In this paper, we investigate the crossover f…
Magnetic structure and domain conversion of quasi-2D frustrated antiferromagnet CuCrO2 probed by NMR
Yu. A. Sakhratov, L. E. Svistov, P. L. Kuhns +2
We have carried out 63,65Cu NMR spectra measurements in magnetic field up to about 15.5 T on single crystal of a multiferroic triangular-lattice antiferromagnet CuCrO2. The measure…
Ground state and magnetic phase transitions of orthoferrite DyFeO_3
Z. Y. Zhao, X. Zhao, H. D. Zhou +5
Low-temperature thermal conductivity (κ), as well as magnetization (M) and electric polarization (P), of multiferroic orthoferrite DyFeO_3 single crystals are studied with H \paral…
Magnetic order and spin dynamics in La2O2Fe2OSe2 probed by 57Fe-Moessbauer, 139La-NMR, and muon spin relaxation spectroscopy
M. Günther, S. Kamusella, R. Sarkar +10
We present a detailed local probe study of the magnetic order in the oxychalcogenide La2O2Fe2OSe2 utilizing 57Fe Moessbauer, 139La NMR, and muon spin relaxation spectroscopy. This…
Magnons and a two-component spin gap in FeV2O4
G. J. MacDougall, I. Brodsky, A. A. Aczel +6
The spinel vanadates have become a model family for exploring orbital order on the frustrated pyrochlore lattice, and recent debate has focused on the symmetry of local crystal fie…
Quantum phase diagram of the triangular-lattice antiferromagnet BaCoSbO
G. Koutroulakis, T. Zhou, C. D. Batista +4
The magnetic phases of the ideal spin-1/2 triangular-lattice antiferromagnet BaCoSbO are identified and studied using Ba nuclear magnetic resonance (NMR) sp…