37 citations · 223 across the 21 of their papers we have counts for
18 papers · 1 filter
A Hubbard exciton fluid in a photo-doped antiferromagnetic Mott insulator
Omar Mehio, Xinwei Li, Honglie Ning +7
The undoped antiferromagnetic Mott insulator naturally has one charge carrier per lattice site. When it is doped with additional carriers, they are unstable to spin fluctuation-med…
Observation of excitons bound by antiferromagnetic correlations
Omar Mehio, Yuchen Han, Xinwei Li +4
Two-dimensional Mott insulators host antiferromagnetic (AFM) correlations that are predicted to enhance the attractive interaction between empty (holons) and doubly occupied (doubl…
High-pressure floating zone crystal growth of SrIrO
S. J. Gomez Alvarado, Y. Pang, P. A. Barrera +7
Here we demonstrate the floating zone crystal growth of the Mott insulator SrIrO. Historically, the growth of iridates from a ternary melt has been pre…
Dynamical decoding of the competition between charge density waves in a kagome superconductor
Honglie Ning, Kyoung Hun Oh, Yifan Su +13
The kagome superconductor CsVSb hosts a variety of charge density wave (CDW) phases, which play a fundamental role in the formation of other exotic electronic instabilities…
3D Heisenberg universality in the Van der Waals antiferromagnet NiPS
Rajan Plumley, Sougata Mardanya, Cheng Peng +20
Van der Waals (vdW) magnetic materials are comprised of layers of atomically thin sheets, making them ideal platforms for studying magnetism at the two-dimensional (2D) limit. Thes…
Incommensurate Magnetic Order in the Kagome Metal GdVSn
Zach Porter, Ganesh Pokharel, Jong-Woo Kim +2
We characterize the magnetic ground state of the topological kagome metal GdVSn via resonant X-ray diffraction. Previous magnetoentropic studies of GdVSn suggested…
Light-induced insulator-metal transition in SrIrO reveals the nature of the insulating ground state
Dongsung Choi, Changming Yue, Doron Azoury +11
SrIrO has attracted a lot of attention due to its structural and electronic similarities to LaCuO which is the parent compound of high-T superconducting cuprate…
Spin-orbit excitons and electronic configuration of the insulator SrIrOF
Zach Porter, Paul M. Sarte, Thorben Petersen +3
Here we report on the low-energy excitations within the paramagnetic spin-orbit insulator SrIrOF studied via resonant inelastic X-ray scattering, \textit{ab initio}…
Mapping the structural, magnetic and electronic behavior of (EuCa)IrO across a metal-insulator transition
E. Zoghlin, Z. Porter, S. Britner +5
In this study, we employ bulk electronic properties characterization and x-ray scattering/spectroscopy techniques to map the structural, magnetic and electronic properties of (Eu$_…
Imaging antiferromagnetic domain fluctuations and the effect of atomic-scale disorder in a doped spin-orbit Mott insulator
He Zhao, Zach Porter, Xiang Chen +3
Correlated oxides can exhibit complex magnetic patterns, characterized by domains with vastly different size, shape and magnetic moment spanning the material. Understanding how mag…
Spin-orbit-enhanced magnetic surface second-harmonic generation in SrIrO
K. L. Seyler, A. de la Torre, Z. Porter +6
An anomalous optical second-harmonic generation (SHG) signal was previously reported in SrIrO and attributed to a hidden odd-parity bulk magnetic state. Here we investigate…
Symmetry-resolved two-magnon excitations in a strong spin-orbit-coupled bilayer antiferromagnet
Siwen Li, Elizabeth Drueke, Zach Porter +7
We used a combination of polarized Raman spectroscopy and spin wave calculations to study magnetic excitations in the strong spin-orbit-coupled (SOC) bilayer perovskite antiferroma…
Correlating magnetic structure and magnetotransport in semimetal thin films of EuSmTiO
Zach Porter, Ryan F. Need, Kaveh Ahadi +6
We report on the evolution of the average and depth-dependent magnetic order in thin film samples of biaxially stressed and electron-doped EuTiO for samples across a doping ran…
Atomic-scale fragmentation and collapse of antiferromagnetic order in a doped Mott insulator
He Zhao, Sujit Manna, Zach Porter +6
Disentangling the relationship between the insulating state with a charge gap and the magnetic order in an antiferromagnetic (AF) Mott insulator remains difficult due to inherent p…
Overdamped antiferromagnetic strange metal state in SrIrRuO
Julian L. Schmehr, Thomas R. Mion, Zach Porter +8
The unconventional electronic ground state of SrIrRuO is explored via resonant x-ray scattering techniques and angle-resolved photoemission measurements. As the Ru content…
SrIrOF: Topochemical conversion of a relativistic Mott state into a spin-orbit driven band insulator
Christi Peterson, Michael W. Swift, Zach Porter +9
The topochemical transformation of single crystals of SrIrO into SrIrOF is reported via fluorine insertion. Characterization of the newly formed SrI…
Polarized Raman spectroscopy study of metallic : a consistent picture of disorder-interrupted unidirectional charge order
Wencan Jin, Siwen Li, Jianpeng Liu +9
We have used rotational anisotropic polarized Raman spectroscopy to study the symmetries, the temperature and the doping dependence of the charge ordered state in metallic $(Sr_{1-…
Electron doping in : collapse of band gap and magnetic order
Michael W. Swift, Zach Porter, Stephen D. Wilson +1
The electron-doping-driven collapse of the charge gap and staggered magnetization of the spin-orbit-assisted Mott insulator SrIrO is explored via first-principles…