137 citations · 785 across the 25 of their papers we have counts for
25 papers
Infrared evidence for strong symmetry breaking in 1-TiSe
Esther van Grondelle, Kai Rossnagel, Jasper van Wezel +1
The interplay between lattice and electron degrees of freedom gives rise to competing ordered states in quantum materials, which can lead to a series of subsequent symmetry breakin…
Near-field imaging of domain switching in in-operando VO devices
Sergio Salvía Fernández, Xing Gao, Silvia Cassanelli +3
Experimental insight in the nanoscale dynamics underlying switching in novel memristive devices is limited owing to the scarcity of techniques that can probe the electronic structu…
Hydrodynamics of plastic deformations in electronic crystals
Jay Armas, Erik van Heumen, Akash Jain +1
We construct a new hydrodynamic framework describing plastic deformations in electronic crystals. The framework accounts for pinning, phase, and momentum relaxation effects due to…
Optical phonons and magneto-elastic coupling in the ionic conductor AgCrSe
Jim Groefsema, Xuanbo Feng, Corentin Morice +2
AgCrSe is an example of a super-ionic conductor that has recently attracted attention for its low thermal conductivity. Here we investigate the optical properties of AgCrSe…
Puddle formation, persistent gaps, and non-mean-field breakdown of superconductivity in overdoped (Pb,Bi)2Sr2CuO6+δ
Willem O. Tromp, Tjerk Benschop, Jian-Feng Ge +14
The cuprate high-temperature superconductors exhibit many unexplained electronic phases, but it was often thought that the superconductivity at sufficiently high doping is governed…
Strange metal dynamics across the phase diagram of BiSrCuO cuprates
Erik van Heumen, Xuanbo Feng, Silvia Cassanelli +7
Unlocking the mystery of the strange metal state has become the focal point of high T research, not because of its importance for superconductivity, but because it appears to…
Momentum-dependent scaling exponents of nodal self-energies measured in strange metal cuprates and modelled using semi-holography
S. Smit, E. Mauri, L. Bawden +13
The anomalous strange metal phase found in high- cuprates does not follow the conventional condensed-matter principles enshrined in the Fermi liquid and presents a great chall…
Observation of the charge density wave collective mode in the infrared optical response of VSe
Xuanbo Feng, Jans Henke, Corentin Morice +4
We present a detailed study of the bulk electronic structure of high quality VSe single crystals using optical spectroscopy. Upon entering the charge density wave phase below…
Incoherent transport across the strange metal regime of highly overdoped cuprates
J. Ayres, M. Berben, M. Culo +11
Strange metals possess highly unconventional transport characteristics, such as a linear-in-temperature () resistivity, an inverse Hall angle that varies as and a linear-i…
Scattering rate collapse driven by a van Hove singularity in the Dirac semi-metal PdTe
Erik van Heumen, Maarten Berben, Linda Neubrand +1
We present optical measurements of the transition metal dichalcogenide PdTe. The reflectivity displays an unusual temperature and energy dependence in the far-infrared, which…
Electronic structure of the candidate 2D Dirac semimetal SrMnSb2: a combined experimental and theoretical study
S. V. Ramankutty, J. Henke, A. Schiphorst +15
SrMnSb is suggested to be a magnetic topological semimetal. It contains square, 2D Sb planes with non-symmorphic crystal symmetries that could protect band crossings, offering…
periodic Andreev bound states in a Dirac semimetal
Chuan Li, Jorrit C. de Boer, Bob de Ronde +7
Electrons in a Dirac semimetals possess linear dispersion in all three spatial dimensions, and form part of a developing platform of novel quantum materials. BiSb suppo…
From bad metal to Kondo insulator: temperature evolution of the optical properties of SmB
A. Tytarenko, K. Nakatsukasa, Y. K. Huang +2
The recent rekindling of interest in the mixed valent Kondo insulator SmB as candidate for a first correlated topological insulator has resulted in a wealth of new experiment…
Quantum oscillations of the topological surface states in low carrier concentration crystals of BiSbTeSe
Y. Pan, A. M. Nikitin, D. Wu +8
We report a high-field magnetotransport study on selected low-carrier crystals of the topological insulator BiSbTeSe. Monochromatic Shubnikov - de Haas…
Direct observation of a Fermi liquid-like normal state in an iron-pnictide superconductor
Alona Tytarenko, Yingkai Huang, Anne de Visser +2
There are two prerequisites for understanding high-temperature (high-T) superconductivity: identifying the pairing interaction and a correct description of the normal state fro…
Angle-resolved and core-level photoemission study of interfacing the topological insulator Bi1.5Sb0.5Te1.7Se1.3 with Ag, Nb and Fe
N. de Jong, E. Frantzeskakis, B. Zwartsenberg +7
Interfaces between a bulk-insulating topological insulator (TI) and metallic adatoms have been studied using high-resolution, angle-resolved and core-level photoemission. Fe, Nb an…
Micro-metric electronic patterning of a topological band structure using a photon beam
Emmanouil Frantzeskakis, Nick de Jong, Berend Zwartsenberg +12
In an ideal 3D topological insulator (TI), the bulk is insulating and the surface conducting due to the existence of metallic states that are localized on the surface; these are th…
Hard x-ray photoemission and density functional theory study of the internal electric field in SrTiO3/LaAlO3 oxide heterostructures
E. Slooten, Zhicheng Zhong, H. J. A. Molegraaf +16
A combined experimental and theoretical investigation of the electronic structure of the archetypal oxide heterointerface system LaAlO3 on SrTiO3 is presented. High-resolution, har…
Evidence for a Fermi liquid in the pseudogap phase of high-Tc cuprates
S. I. Mirzaei, D. Stricker, J. N. Hancock +9
Cuprate high-T_c superconductors on the Mott-insulating side of "optimal doping" (with respect to the highest T_c's) exhibit enigmatic behavior in the non-superconducting state. Ne…
Infrared phonon activity in pristine graphite
M. Manzardo, E. Cappelluti, E. van Heumen +1
We study experimentally and theoretically the Fano-shaped phonon peak at 1590 cm (0.2 eV) in the in-plane optical conductivity of pristine graphite. We show that the anomalo…
Multiband quasiparticle interference in the topological insulator Cu_(x)Bi_(2)Te_(3)
E. van Heumen, G. A. R. van Dalum, J. Kaas +6
We present angle resolved photoemission experiments and scanning tunneling spectroscopy results on the doped topological insulator Cu0.2Bi2Te3. Quasi-particle interference (QPI) me…
Pseudogap-less high T superconductivity in BaCoFeAs
F. Massee, Y. K. Huang, J. Kaas +6
The pseudogap state is one of the peculiarities of the cuprate high temperature superconductors. Here we investigate its presence in BaCoFeAs, a member of the p…
Existence, character and origin of surface-related bands in the high temperature iron pnictide superconductor BaFe_{2-x}Co_{x}As_{2}
Erik van Heumen, Johannes Vuorinen, Klaus Koepernik +8
Low energy electron diffraction (LEED) experiments, LEED simulations and finite slab density functional calculations are combined to study the cleavage surface of Co doped BaFe_{2-…
Dissimilarities between the electronic structure of chemically doped and chemically pressurized iron pnictides from an angle-resolved photoemission spectroscopy study
S. Thirupathaiah, E. D. L. Rienks, H. S. Jeevan +11
We have studied the electronic structure of EuFe2As2-xPx using high resolution angle-resolved photoemission spectroscopy. Upon substituting As with the isovalent P, which leads to…