287 citations · 2.3k across the 54 of their papers we have counts for
17 papers · 1 filter
Signatures of symmetry-stabilized Dirac fermions in correlated oxide CaNbO3 thin films
Yunkyu Park, Seoung-Hun Kang, Jeongkeun Song +11
Symmetry-protected electronic states in correlated oxides offer a route to combining topology, lattice tunability, and many-body interactions, but creating such topological electro…
Stacking disorder in -RuCl via x-ray three-dimensional difference pair distribution function analysis
J. Sears, Y. Shen, M. J. Krogstad +10
The van der Waals layered magnet -RuCl offers tantalizing prospects for the realization of Majorana quasiparticles. Efforts to understand this are, however, hampered by inco…
Topological Electronic Structure Evolution with Symmetry Breaking Spin Reorientation in (FeCo)Sn
Robert G. Moore, Satoshi Okamoto, Haoxiang Li +8
Topological materials hosting kagome lattices have drawn considerable attention due to the interplay between topology, magnetism, and electronic correlations. The (FeCo…
Flat-Band Itinerant Antiferromagnetism in the Kagome Metal CoSn1-xInx
B. C. Sales, W. R. Meier, D. S. Parker +12
Destructive interference of electron hopping on the frustrated kagome lattice generates Dirac nodes, saddle points, and flat bands in the electronic structure. The latter provides…
Divergence of Majorana-Phonon Scattering in Kitaev Quantum Spin Liquid
Haoxiang Li, A. Said, J. Q. Yan +5
Magnetoelastic interaction couples spin and lattice degrees of freedom and plays a key role in thermal transport properties of magnetic insulators. In the Kitaev quantum spin liqui…
Correlated Oxide Dirac Semimetal in the Extreme Quantum Limit
Jong Mok Ok, Narayan Mohanta, Jie Zhang +17
Quantum materials (QMs) with strong correlation and non-trivial topology are indispensable to next-generation information and computing technologies. Exploitation of topological ba…
Damped Dirac magnon in a metallic kagome antiferromagnet FeSn
Seung-Hwan Do, Koji Kaneko, Ryoichi Kajimoto +10
The kagome lattice is a fertile platform to explore topological excitations with both Fermi-Dirac and Bose-Einstein statistics. While relativistic Dirac Fermions and flat-bands hav…
Semi-Dirac and Weyl Fermions in Transition Metal Oxides
Narayan Mohanta, Jong Mok Ok, Jie Zhang +4
We show that a class of compounds with 4/ crystalline symmetry hosts three-dimensional semi-Dirac fermions. Unlike the known two-dimensional semi-Dirac points, the degenera…
Charge Condensation and Lattice Coupling Drives Stripe Formation in Nickelates
Y. Shen, G. Fabbris, H. Miao +15
Revealing the predominant driving force behind symmetry breaking in correlated materials is sometimes a formidable task due to the intertwined nature of different degrees of freedo…
Giant Phonon Anomalies in the Proximate Kitaev Quantum Spin Liquid -RuCl
H. Li, T. T. Zhang, A. Said +10
The Kitaev quantum spin liquid epitomizes an entangled topological state, for which two flavors of fractionalized low-energy excitations are predicted: the itinerant Majorana fermi…
On the Spatial Locality of Electronic Correlations in LiFeAs
Minjae Kim, Hu Miao, Sangkook Choi +3
We address the question of the degree of spatial non-locality of the self energy in the iron-based superconductors, a subject which is receiving considerable attention. Using LiFeA…
Laser-Induced Transient Magnons in Sr3Ir2O7 Throughout the Brillouin Zone
D. G. Mazzone, D. Meyers, Y. Cao +32
Although ultrafast manipulation of magnetism holds great promise for new physical phenomena and applications, targeting specific states is held back by our limited understanding of…
Decoupling carrier concentration and electron-phonon coupling in oxide heterostructures observed with resonant inelastic x-ray scattering
D. Meyers, Ken Nakatsukasa, Sai Mu +19
We report the observation of multiple phonon satellite features in ultra thin superlattices of form SrIrO/SrTiO using resonant inelastic x-ray scattering. As the valu…
Doping dependence of the magnetic excitations in LaSrCuO
D. Meyers, H. Miao, A. C. Walters +13
The magnetic correlations within the cuprates have undergone intense scrutiny as part of efforts to understand high temperature superconductivity. We explore the evolution of the m…
Resonant inelastic X-ray scattering study of spin-wave excitations in the cuprate parent compound CaCuOCl
B. W. Lebert, M. P. M. Dean, A. Nicolaou +10
By means of resonant inelastic x-ray scattering at the Cu L edge, we measured the spin wave dispersion along 100 and 110 in the undoped cupr…
Orbital-differentiated coherence-incoherence crossover identified by photoemission spectroscopy in LiFeAs
H. Miao, Z. P. Yin, S. F. Wu +12
In the iron-based superconductors (FeSCs), orbital differentiation is an important phenomenon, whereby correlations stronger on the dxy orbital than on the dxz/yz orbital yield qua…
Electronic band structure of BaCoAs: a fully-doped ferropnictide with reduced electronic correlations
N. Xu, P. Richard, A. van Roekeghem +8
We report an angle-resolved photoemission spectroscopy investigation of the Fermi surface and electronic band structure of BaCoAs. Although its quasi-nesting-free Fermi s…