28 citations · 77 across the 16 of their papers we have counts for
16 papers
Observation geometry for uncertainty-aware Hamiltonian inference and experimental design in quantum magnets
Roy Liu, Venugopal Ranganathan, David Dahlbom +12
Determining microscopic interactions from spectroscopic and scattering measurements is central to understanding quantum materials, yet it often remains unclear which interactions c…
Frustration induced dimensional reduction and coexistence of long and short-range magnetic order in NdCl
Eli Zoghlin, Matthew B. Stone, Vasile O. Garlea +3
The phenomenon of frustration greatly enriches the accessible physics of quantum magnets. With this in mind we study the magnetism of \NC using a combination of bulk properties mea…
Dichotomy of flat bands in the van der Waals ferromagnet FeGeTe
Han Wu, Jianwei Huang, Chaowei Hu +28
Quantum materials with bands of narrow bandwidth near the Fermi level represent a promising platform for exploring a diverse range of fascinating physical phenomena, as the high de…
From weakly interacting spinons to tightly bound triplons in the frustrated quantum spin-Peierls chain
Pyeongjae Park, Bo Xiao, Karolina Górnicka +7
Fractionalized quasiparticles and their confinement into emergent bound states lie at the heart of modern quantum magnetism. While the evolution into magnonic bound states has been…
Crystal field splittings and magnetic ground state of the square-lattice antiferromagnets YbBi2ClO4 and YbBi2IO4 with Jeff = 1/2
Pyeongjae Park, Qianli Ma, G. Sala +5
We report on the crystal field level splitting and magnetic ground state of the Jeff = 1/2 square lattice antiferromagnets YbBi2ClO4 and YbBi2IO4 using powder inelastic neutron sca…
Spin Dynamics of the Centrosymmetric Skyrmion Material GdRu2Si2
Joseph A. M. Paddison, Juba Bouaziz, Andrew F. May +6
Magnetic skyrmion crystals are traditionally associated with non-centrosymmetric crystal structures; however, it has been demonstrated that skyrmion crystals can be stabilized by c…
Codimension-Two Spiral Spin-Liquid in the Effective Honeycomb-Lattice Compound CsFeCl
Shang Gao, Chris Pasco, Otkur Omar +7
A codimension-two spiral spin-liquid is a correlated paramagnetic state with one-dimensional ground state degeneracy hosted within a three-dimensional lattice. Here, via neutron sc…
Quantum and classical spin dynamics across temperature scales in the S = 1/2 Heisenberg antiferromagnet
Pyeongjae Park, G. Sala, Daniel M. Pajerowski +6
Using the framework of semi-classical Landau-Lifshitz dynamics (LLD), we conduct a systematic investigation of the temperature-dependent spin dynamics in the S = 1/2 Heisenberg squ…
Anomalous continuum scattering and higher-order van Hove singularity in the strongly anisotropic S = 1/2 triangular lattice antiferromagnet
Pyeongjae Park, E. A. Ghioldi, Andrew F. May +10
The S = 1/2 triangular lattice antiferromagnet (TLAF) is a paradigmatic example of frustrated quantum magnetism. An ongoing challenge involves understanding the influence of exchan…
Quantum magnetism in the frustrated square lattice oxyhalides YbBi2IO4 and YbBi2ClO4
Pyeongjae Park, G. Sala, Th. Proffen +3
Square-lattice systems offer a direct route for realizing 2D quantum magnetism with frustration induced by competing interactions. In this work, the square-lattice materials YbBi2I…
Revisiting spin ice physics in the ferromagnetic Ising pyrochlore PrSnO
Brenden R. Ortiz, Paul M. Sarte, Ganesh Pokharel +12
Pyrochlore materials are characterized by their hallmark network of corner-sharing rare-earth tetrahedra, which can produce a wide array of complex magnetic ground states. Ferromag…
Coexistence of symmetry-protected topological order and Neel order in the spin-1/2 ladder antiferromagnet C9H18N2CuBr4
Tao Hong, Imam Makhfudz, Xianglin Ke +7
Topological phases of matter are beyond the paradigm of Landau's symmetry breaking and have challenged our understanding of condensed matter systems. Here we report a new type of s…
Gaps in Topological Magnon Spectra: Intrinsic vs. Extrinsic Effects
Seung-Hwan Do, Joseph A. M. Paddison, Gabriele Sala +9
For topological magnon spectra, determining and explaining the presence of a gap at a magnon crossing point is a key to characterize the topological properties of the system. An in…
Unveiling the role of competing fluctuations at an unconventional quantum critical point
L. Poudel, J. M. Lawrence, L. S. Wu +7
Quantum critical points (QCPs) are widely accepted as a source of a diverse set of collective quantum phases of matter. A central question is how the order parameters of phases nea…
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…
Influence of interstitial Mn on magnetism in room-temperature ferromagnet Mn(1+delta)Sb
A. E. Taylor, T. Berlijn, S. E. Hahn +10
We report elastic and inelastic neutron scattering measurements of the high-TC ferromagnet Mn(1+delta)Sb. Measurements were performed on a large, TC=434 K, single crystal with inte…