821 citations · 2.6k across the 41 of their papers we have counts for
24 papers · 1 filter
Disentangling multi-spin dynamic correlations in the Heisenberg spin- chain
V. K . Bhartiya, U. Kumar, T. Kim +8
Higher-order correlations are essential for understanding exotic phases and uncovering universal aspects of quantum dynamics. While inelastic neutron scattering provides well-estab…
Quantum control of Hubbard excitons
D. R. Baykusheva, D. P. Carmichael, C. S. Weber +12
Quantum control of the many-body wavefunction is a central challenge in quantum materials research, as it could yield a precise control knob to manipulate emergent phenomena. Floqu…
Electronic layer decoupling driven by density-wave order in LaNiO
Ziqiang Guan, Sophia F. R. TenHuisen, M. Tepie +14
We probe the density-wave transition of the trilayer nickelate LaNiO with polarization-resolved infrared spectroscopy. The low-energy electrodynamics is strongly ani…
Observation of correlated plasmons in low-valence nickelates
Y. Shen, W. He, J. Sears +13
The discovery of nickelate superconductors has opened a new arena for studying the behavior of correlated electron liquids that give rise to unconventional superconductivity. While…
A light-induced charge order mode in a metastable cuprate ladder
Hari Padma, Prakash Sharma, Sophia F. R. TenHuisen +17
We report the observation of an emergent charge order mode in the optically-excited cuprate ladder SrCuO. Near-infrared light in the ladder plane drives a symm…
Photo-generated charge-transfer excitons in NiO revealed by ultrafast time-resolved resonant inelastic x-ray scattering
Giacomo Merzoni, Leonardo Martinelli, Sergii Parchenko +32
Strong electronic correlation can lead to insulating behavior and to the opening of large optical gaps, even in materials with partly filled valence shells. Although the non-equili…
Observation of anisotropic dispersive dark exciton dynamics in CrSBr
J. Sears, B. Zager, W. He +15
Many-body excitons in CrSBr are attracting intense interest in view of their highly anisotropic magneto-optical coupling and their potential for novel optical interfaces within spi…
Witnessing Quantum Entanglement Using Resonant Inelastic X-ray Scattering
Tianhao Ren, Yao Shen, Marton Lajer +9
Although entanglement is both a central ingredient in our understanding of quantum many-body systems and an essential resource for quantum technologies, we only have a limited abil…
Electronic character of charge order in square planar low valence nickelates
Y. Shen, J. Sears, G. Fabbris +10
Charge order is a central feature of the physics of cuprate superconductors and is known to arise from a modulation of holes with primarily oxygen character. Low-valence nickelate…
Anharmonic multiphonon origin of the valence plasmon in SrTi1-xNbxO3
Caitlin S. Kengle, Samantha I. Rubeck, Melinda Rak +10
Doped SrTi1-xNbxO3 exhibits superconductivity and a mid-infrared optical response reminiscent of copper-oxide superconductors. Strangely, its plasma frequency, omega_p, increases b…
Witnessing Light-Driven Entanglement using Time-Resolved Resonant Inelastic X-Ray Scattering
Jordyn Hales, Utkarsh Bajpai, Tongtong Liu +4
Characterizing and controlling entanglement in quantum materials is crucial for the development of next-generation quantum technologies. However, defining a quantifiable figure of…
Witnessing nonequilibrium entanglement dynamics in a strongly correlated fermionic chain
Denitsa R. Baykusheva, Mona H. Kalthoff, Damian Hofmann +4
Many-body entanglement in condensed matter systems can be diagnosed from equilibrium response functions through the use of entanglement witnesses and operator-specific quantum boun…
Incommensurate magnetic orders and topological Hall effect in the square-net centrosymmetric EuGaAl system
Jaime M. Moya, Shiming Lei, Eleanor M. Clements +16
Neutron diffraction on the centrosymmetric square-net magnet EuGaAl reveals multiple incommensurate magnetic states (AFM1,2,3) in zero field. In applied field, a new magnet…
Ultrafast renormalization of the onsite Coulomb repulsion in a cuprate superconductor
Denitsa R. Baykusheva, Hoyoung Jang, Ali A. Husain +14
Ultrafast lasers are an increasingly important tool to control and stabilize emergent phases in quantum materials. Among a variety of possible excitation protocols, a particularly…
Probing light-driven quantum materials with ultrafast resonant inelastic X-ray scattering
Matteo Mitrano, Yao Wang
Ultrafast optical pulses are an increasingly important tool for controlling quantum materials and triggering novel photo-induced phase transitions. Understanding these dynamic phen…
Observation of Pines' Demon in SrRuO
A. A. Husain, E. W. Huang, M. Mitrano +11
The characteristic excitation of a metal is its plasmon, which is a quantized collective oscillation of its electron density. In 1956, David Pines predicted that a distinct type of…
Ultrafast time-resolved x-ray scattering reveals diffusive charge order dynamics in LaBaCuO
Matteo Mitrano, Sangjun Lee, Ali A. Husain +15
Charge order is universal among high-T cuprates but its relevance to superconductivity is not established. It is widely believed that, while static order competes with supercon…
Inequivalence of the zero-momentum Limits of Transverse and Longitudinal Dielectric Response in the Cuprates
Chandan Setty, Bikash Padhi, Kridsanaphong Limtragool +4
We address the question of the mismatch between the zero momentum limits of the transverse and longitudinal dielectric functions for a fixed direction of the driving field observed…
Unconventional Charge Density Wave Order in the Pnictide Superconductor Ba(NiCo)As
Sangjun Lee, Gilberto de la Pena, Stella X. -L. Sun +10
Ba(NiCo)As is a structural homologue of the pnictide high temperature superconductor, Ba(FeCo)As, in which the Fe atoms are replaced by Ni.…
Anomalous density fluctuations in a strange metal
M. Mitrano, A. A. Husain, S. Vig +9
A central mystery in high temperature superconductivity is the origin of the so-called "strange metal," i.e., the anomalous conductor from which superconductivity emerges at low te…
THz-Frequency Modulation of the Hubbard U in an Organic Mott Insulator
R. Singla, G. Cotugno, S. Kaiser +10
We use midinfrared pulses with stable carrier-envelope phase offset to drive molecular vibrations in the charge transfer salt ET-F2TCNQ, a prototypical one-dimensional Mott insulat…
Pressure dependent relaxation in the photo-excited Mott insulator ETF2TCNQ: Influence of hopping and correlations on quasiparticle recombination rates
M. Mitrano, G. Cotugno, S. R. Clark +12
Femtosecond relaxation of photo-excited quasiparticles in the one dimensional Mott insulator ET-F2TCNQ are measured as a function of external pressure, which is used to tune the el…
Ultrafast strain engineering in complex oxide heterostructures
A. D. Caviglia, R. Scherwitzl, P. Popovich +11
We report on ultrafast optical experiments in which femtosecond mid-infrared radiation is used to excite the lattice of complex oxide heterostructures. By tuning the excitation ene…
Anisotropic compression in the high pressure regime of pure and Cr-doped vanadium dioxide
Matteo Mitrano, Beatrice Maroni, Carlo Marini +4
We present structural studies of VCrO (pure, 0.7% and 2.5% Cr doped) compounds at room temperature in a diamond anvil cell for pressures up to 20 GPa using synchrot…