25 citations · 115 across the 27 of their papers we have counts for
28 papers
Direct High-Magnetic-Field Coupling to Stripe Order in a Cuprate Superconductor
Leonardo Martinelli, Izabela Biało, Jens Oppliger +47
Superconductivity in cuprates emerges out of a complex normal state that hosts density waves, pseudogap physics, and strange metal properties. Here, we access this normal state by…
Autonomous Diffractometry Enabled by Visual Reinforcement Learning
J. Oppliger, M. Stifter, A. Rüegg +7
Automation underpins progress across scientific and industrial disciplines. Yet, automating tasks requiring interpretation of abstract visual information remain challenging. For ex…
Correlated charge order intertwined with time-reversal symmetry-breaking nodal superconductivity in the dual flat band kagome superconductor CeRuSi
O. Gerguri, P. Kràl, M. Spitaler +19
Kagome materials provide a powerful platform for exploring how flat electronic bands promote symmetry-breaking quantum states, yet studies have so far focused mainly on kagome-deri…
Suppression of Spectral Gap and Flat Bands on a Cuprate Superconductor Side-Surface
Gabriele Domaine, Mihir Date, Sydney K. Y. Dufresne +27
Side surfaces of cuprate superconductors are expected to display a suppressed -wave order parameter and zero-energy topological flat bands with a large density of states, making…
Orbital Separation of Charge Order and Superconductivity in LaSrCuO
I. Biało, O. Gerguri, L. Martinelli +12
We report a combined x-ray absorption (XAS) and oxygen -edge resonant inelastic x-ray scattering (RIXS) study of charge order in underdoped LaSrCuO () u…
Impact of Electron Correlations on Infinite-Layer Cuprates and Nickelates
Xunyang Hong, Yuetong Wu, Ying Chan +18
Optimization of unconventional superconductivity involves a balance of interaction strengths. Precise determination of correlation strength across different material families is th…
Differentiation of Site-Specific Symmetry Breaking Orders in YPrBaCuO
L. Martinelli, S. Rüdiger, I. Bialo +6
Solid matter is classified through symmetry of ordering phenomena. Experimentally, this approach is straightforward, except when distinct orderings occur with identical or almost i…
Persistent paramagnons in high-temperature infinite-layer nickelate superconductors
Yujie Yan, Ying Chan, Xunyang Hong +25
The recent discovery of high-temperature superconductivity in hole-doped SmNiO, exhibiting the record-high transition temperature among infinite-layer (IL) nickelates, ha…
Discovery of High-Temperature Charge Order and Time-Reversal Symmetry-Breaking in the Kagome Superconductor YRu3Si2
P. Kràl, J. N. Graham, V. Sazgari +21
The identification of high-temperature unconventional charge order and superconductivity in kagome quantum materials is pivotal for deepening our understanding of geometrically fru…
Magnetic Excitations of a Half-Filled Tl-based Cuprate
I. Biało, Q. Wang, J. Küspert +21
Strong electron correlations drive Mott insulator transitions. Yet, there exists no framework to classify Mott insulators by their degree of correlation. Cuprate superconductors, w…
Unveiling the nature of collective charge excitations in a cuprate superconductor
Xunyang Hong, Yujie Yan, Leonardo Martinelli +33
Emergent symmetry breakings in condensed matter systems are often intimately linked to collective excitations. For example, the intertwined spin-charge stripe order in cuprate supe…
Pressure induced transition from chiral charge order to time-reversal symmetry-breaking superconducting state in Nb-doped CsVSb
J. N. Graham, S. S. Islam, V. Sazgari +19
The experimental realisation of unconventional superconductivity and charge order in kagome systems \textit{A}VSb is of critical importance. We conducted a highly systemati…
High-entropy magnetism of murunskite
D. Tolj, P. Reddy, I. Živković +16
Murunskite (KFeCuS) is a bridging compound between the only two known families of high-temperature superconductors. It is a semiconductor like the parent compounds of c…
Decoupling of Static and Dynamic Charge Correlations revealed by Uniaxial Strain in a Cuprate Superconductor
L. Martinelli, I. Biało, X. Hong +17
We use uniaxial strain in combination with ultra-high-resolution Resonant Inelastic X-ray Scattering (RIXS) at the oxygen K- and copper L3-edges to study the excitations stemming f…
Discovery of Giant Unit-Cell Super-Structure in the Infinite-Layer Nickelate PrNiO
J. Oppliger, J. Küspert, A. -C. Dippel +10
Spectacular quantum phenomena such as superconductivity often emerge in flat-band systems where Coulomb interactions overpower electron kinetics. Engineering strategies for flat-ba…
Charge orders with distinct magnetic response in a prototypical kagome superconductor LaRuSi
C. Mielke, V. Sazgari, I. Plokhikh +22
The kagome lattice has emerged as a promising platform for hosting unconventional chiral charge order at high temperatures. Notably, in LaRuSi, a room-temperature charg…
Two-Dimensional Phase-Fluctuating Superconductivity in Bulk-Crystalline NdOFBiS
C. S. Chen, J. Küspert, I. Biało +11
We present a combined growth and transport study of superconducting single-crystalline NdOFBiS. Evidence of two-dimensional superconductivity with significant p…
Intercalation-induced states at the Fermi level and the coupling of intercalated magnetic ions to conducting layers in NiNbS
Yuki Utsumi Boucher, Izabela Biało, Mateusz A. Gala +11
The magnetic sublayers introduced by intercalation into the host transition-metal dichalcogenide (TMD) are known to produce various magnetic states. The magnetic sublayers and thei…
Spin fluctuations sufficient to mediate superconductivity in nickelates
Paul Worm, Qisi Wang, Motoharu Kitatani +12
Infinite-layer nickelates show high-temperature superconductivity, and the experimental phase diagram agrees well with the one simulated within the dynamical vertex approximation (…
Engineering Phase Competition Between Stripe Order and Superconductivity in LaSrCuO
J. Küspert, I. Biało, R. Frison +18
Unconventional superconductivity often couples to other electronic orders in a cooperative or competing fashion. Identifying external stimuli that tune between these two limits is…
Magnon interactions in a moderately correlated Mott insulator
Qisi Wang, S. Mustafi, E. Fogh +20
Quantum fluctuations in low-dimensional systems and near quantum phase transitions have significant influences on material properties. Yet, it is difficult to experimentally gauge…
Charge order above room-temperature in a prototypical kagome superconductor La(RuFe)Si
I. Plokhikh, C. Mielke, H. Nakamura +22
The kagome lattice is an intriguing and rich platform for discovering, tuning and understanding the diverse phases of quantum matter, which is a necessary premise for utilizing qua…
Strain-Tuned Magnetic Frustration in a Square Lattice - Material
I. Biało, L. Martinelli, G. De Luca +16
Magnetic frustration is a route that can lead to the emergence of novel ground states, including spin liquids and spin ices. Such frustration can be introduced through either the g…
The impact of hydrostatic pressure, nonstoichiometry, and doping on trimeron lattice excitations in magnetite during axis switching
T. Kołodziej, J. Piętosa, R. Puźniak +12
Trimeron lattice excitations in single crystalline magnetite, in the form of the axis switching (i.e. the reorganization of the lattice caused by external magnetic field) at te…