650 citations · 2.2k across the 55 of their papers we have counts for
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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…
Invertible Symmetry and Spontaneous Duality Breaking in the Transverse-Field Ising Model
José Dupont, Jasper van Wezel
The self-duality of the transverse-field Ising model is an archetype for dualities that, alongside symmetry and topology, are used as an organizing principle throughout modern phys…
-linear magnetoresistance in NbSe due to impeded cyclotron motion
A. Kool, D. Pizzirani, P. Tinnemans +5
Linear magnetoresistance (LMR) is a widespread phenomenon observed in a host of quantum materials ranging from semiconductor nanostructures to quantum critical and strange metals.…
In-plane anisotropy of charge density wave fluctuations in 1-TiSe
Xuefei Guo, Anshul Kogar, Jans Henke +17
We report measurements of anisotropic triple- charge density wave (CDW) fluctuations in the transition metal dichalcogenide 1-TiSe over a large volume of reciprocal space…
Observation of giant circular dichroism induced by electronic chirality
Qian Xiao, Oleg Janson, Sonia Francoual +8
Chiral phases of matter, characterized by a definite handedness, abound in nature, ranging from the crystal structure of quartz to spiraling spin states in helical magnets. In …
Two-dimensional Discommensurations: an extension to McMillan's Ginzburg-Landau Theory
Lotte Mertens, Jeroen van den Brink, Jasper van Wezel
Charge density waves (CDW) profoundly affect the electronic properties of materials and have an intricate interplay with other collective states, like superconductivity and magneti…
Lattice-Driven Chiral Charge Density Wave State in 1T-TaS
Manoj Singh, Boning Yu, James Huber +5
We use scanning tunneling microscopy to study the domain structure of the nearly-commensurate charge density wave (NC-CDW) state of 1T-TaS. In our sub-angstrom characterization…
Observation of orbital order in the Van der Waals material 1T-TiSe2
Yingying Peng, Xuefei Guo, Qian Xiao +11
Besides magnetic and charge order, regular arrangements of orbital occupation constitute a fundamental order parameter of condensed matter physics. Even though orbital order is dif…
Coexisting charge-ordered states with distinct driving mechanisms in monolayer VSe
Rebekah Chua, Jans Henke, Surabhi Saha +7
Thinning crystalline materials to two dimensions (2D) creates a rich playground for electronic phases, including charge, spin, superconducting, and topological order. Bulk material…
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…
Stability and Absence of a Tower of States in Ferrimagnets
Louk Rademaker, Aron Beekman, Jasper van Wezel
Antiferromagnets and ferromagnets are archetypes of the two distinct (type-A and type-B) ways of spontaneously breaking a continuous symmetry. Although type-B Nambu--Goldstone mode…
The simple-cubic structure of elemental Polonium and its relation to combined charge and orbital order in other elemental chalcogens
Ana Silva, Jasper van Wezel
Polonium is the only element to crystallise into a simple cubic structure at ambient conditions. Moreover, at high temperatures it undergoes a structural phase transition into a le…
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…
Topology in time-reversal symmetric crystals
Jorrit Kruthoff, Jan de Boer, Jasper van Wezel
The discovery of topological insulators has reformed modern materials science, promising to be a platform for tabletop relativistic physics, electronic transport without scattering…
Elemental chalcogens as a minimal model for chiral charge and orbital order
Ana Silva, Jans Henke, Jasper van Wezel
Helices of increased electron density can spontaneously form in materials containing multiple, interacting density waves. Although a macroscopic order parameter theory describing t…
Signatures of exciton condensation in a transition metal dichalcogenide
Anshul Kogar, Melinda S. Rak, Sean Vig +9
Bose condensation has shaped our understanding of macroscopic quantum phenomena, having been realized in superconductors, atomic gases, and liquid helium. Excitons are bosons that…
Charge Order in NbSe
Felix Flicker, Jasper van Wezel
We develop in detail a model of the charge order in NbSe deriving from a strong electron-phonon coupling dependent on the ingoing and outgoing electron momenta as well as the e…
Emergence of coherence in the charge-density wave state of 2H-NbSe
U. Chatterjee, J. Zhao, M. Iavarone +15
A charge-density wave (CDW) state has a broken symmetry described by a complex order parameter with an amplitude and a phase. The conventional view, based on clean, weak-coupling s…
Charge Ordering Geometries in Uniaxially-Strained NbSe
Felix Flicker, Jasper van Wezel
Recent STM experiments reveal niobium diselenide to support domains of striped (1Q) charge order side-by-side with its better-known triangular (3Q) phase, suggesting that small var…
One-Dimensional Quasicrystals from Incommensurate Charge Order
Felix Flicker, Jasper van Wezel
Artificial quasicrystals are nowadays routinely manufactured, yet only two naturally occurring examples are known. We present a class of systems with the potential to be realized b…
Quasiperiodicity and 2D Topology in 1D Charge Ordered Materials
Felix Flicker, Jasper van Wezel
It has recently been argued that individual 1D quasicrystals can be ascribed 2D topological quantum numbers and a corresponding set of topologically protected edge modes. Here, we…
The chiral phase transition in charge ordered 1T-TiSe2
John-Paul Castellan, Stephan Rosenkranz, Ray Osborn +7
It was recently discovered that the low temperature, charge ordered phase of 1T-TiSe2 has a chiral character. This unexpected chirality in a system described by a scalar order para…
Comment on "Charge-parity symmetry observed through Friedel oscillations in chiral charge-density waves" by J. Ishioka et al
Jasper van Wezel
In their publication [Phys. Rev B, 84, 245125 (2011)], Ishioka et al. discuss the recently discovered chiral charge density wave state in 1T-TiSe2 in terms of a parameter H_CDW, wh…
Polar charge and orbital order in 2H-TaS2
Jasper van Wezel
It was recently discovered that in spite of the scalar nature of its order parameter, the charge order in 1T-TiSe2 can be chiral. This is made possible by the emergence of orbital…