activity
20102026
most citedLoss of nodal quasiparticle integrity in underdoped YBa2Cu3O6+x

117 citations · 303 across the 13 of their papers we have counts for

collaborators

14 papers

cond-mat.mes-hall2026

Stacking-Induced Tuning of a Flat-Band Surface State in NbIrTe4

Jiabin Yu, Mohamed Oudah, Giang Nguyen +12

Ternary layered transition metal dichalcogenides (TMDCs) offer high tunability and access to correlated and topological states. However, like the broader family of layered TMDCs, t…

cond-mat.mtrl-sci2026

Isolating Exciton Dissociation Pathways in ReSe

Bradley G. Guislain, Rysa Greenwood, Matteo Michiardi +13

Strongly bound excitons dominate the optical response in many van der Waals semiconductors, yet distinguishing between the different microscopic processes governing exciton dissoci…

cond-mat.supr-con2025

Direct Fabrication of a Superconducting Two-Dimensional Electron Gas on KTaO3(111) via Mg-Induced Surface Reduction

Chun Sum Brian Pang, Bruce A. Davidson, Fengmiao Li +16

Two-dimensional electron gases (2DEGs) at the surfaces of KTaO3 have become an exciting platform for exploring strong spin-orbit coupling, Rashba physics, and low-carrier-density s…

cond-mat.mtrl-sci2025

Quenching of excitons at grain boundaries in C60 thin films

Rysa Greenwood, Bradley G. Guislain, MengXing Na +12

Exciton lifetimes play a critical role in the performance of organic optoelectronic devices. In this work, we investigate how the presence of multiple rotational domains, and there…

cond-mat.supr-con2023

Critical Role of Disorder for Superconductivity in the Series of Epitaxial Ti(O,N) Films

Fengmiao Li, Oliver Dicks, Myung-Geun Han +14

Realizing experimental control of superconductivity is of paramount importance to advancing both basic research and technological applications. Disorder, generally existing in most…

cond-mat.str-el2023★ 3 cited

Mixed-valence state in the dilute-impurity regime of La-substituted SmB

Marta Zonno, Matteo Michiardi, Fabio Boschini +11

Homogeneous mixed-valence (MV) behaviour is one of the most intriguing phenomena of -electron systems. Despite extensive efforts, a fundamental aspect which remains unsettled is…

cond-mat.str-el2020★ 1 cited

Physical properties and electronic structure of single-crystal KCoAs

D. J. Campbell, B. Wilfong, M. P. Zic +9

We present a method for producing high quality KCo2As2 crystals, stable in air and suitable for a variety of measurements. X-ray diffraction, magnetic susceptibility, electrical tr…

cond-mat.supr-con2020★ 6 cited

Ubiquitous suppression of the nodal coherent spectral weight in Bi-based cuprates

M. Zonno, F. Boschini, E. Razzoli +21

High-temperature superconducting cuprates exhibit an intriguing phenomenology for the low-energy elementary excitations. In particular, an unconventional temperature dependence of…

cond-mat.supr-con2013★ 49 cited

Sign inversion in the superconducting order parameter of LiFeAs inferred from Bogoliubov quasiparticle interference

Shun Chi, S. Johnston, G. Levy +10

Quasiparticle interference (QPI) by means of scanning tunneling microscopy/spectroscopy (STM/STS), angle resolved photoemission spectroscopy (ARPES), and multi-orbital tight bind-…

cond-mat.str-el2013★ 15 cited

Deconstruction of Resolution Effects in Angle-Resolved Photoemission

G. Levy, W. Nettke, B. M. Ludbrook +2

We study how the energy and momentum resolution of angle-resolved photoemission spectroscopy (ARPES) affects the linewidth, Fermi crossing, velocity, and curvature of the measured…

cond-mat.supr-con2012★ 8 cited

Observation of charge accumulation and onsite Coulomb repulsion at transition metal impurities in the iron pnictides

R. Kraus, V. Bisogni, L. Harnagea +7

We report a combined valence band photoemission and Auger spectroscopy study of single crystalline Ca(Fe,Co)2As2 and Ba(Fe,TM)2As2 with TM=Ni or Cu. The valence band photoemission…

cond-mat.str-el2012★ 47 cited

Determining the Surface-To-Bulk Progression in the Normal-State Electronic Structure of Sr2RuO4 by Angle-Resolved Photoemission and Density Functional Theory

C. N. Veenstra, Z. -H. Zhu, B. Ludbrook +9

In search of the potential realization of novel normal-state phases on the surface of Sr2RuO4 - those stemming from either topological bulk properties or the interplay between spin…

cond-mat.supr-con2012★ 57 cited

Probing the role of Co substitution in the electronic structure of iron-pnictides

G. Levy, R. Sutarto, D. Chevrier +10

The role of Co substitution in the low-energy electronic structure of Ca(FeCo)As is investigated by resonant photoemission spectroscopy and density func…

cond-mat.supr-con2010★ 117 cited

Loss of nodal quasiparticle integrity in underdoped YBa2Cu3O6+x

D. Fournier, G. Levy, Y. Pennec +8

Arguably the most intriguing aspect of the physics of cuprates is the close proximity between the record high-Tc superconductivity (HTSC) and the antiferromagnetic charge-transfer…