2.4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Max Planck SocietyDE178 papers
- Freie Universität BerlinDE80 papers
- Centre National de la Recherche ScientifiqueFR67 papers
- University of the Basque CountryES53 papers
- Technische Universität BerlinDE51 papers
- Goethe University FrankfurtDE42 papers
- Deutsches Elektronen-Synchrotron DESYDE39 papers
- Humboldt-Universität zu BerlinDE37 papers
- Material Physics CenterES36 papers
- Max Planck Institute for the Structure and Dynamics of MatterDE35 papers
- Technical University of MunichDE31 papers
- Lawrence Berkeley National LaboratoryUS30 papers
52 papers · 1 filter
Uncovering surface states of the Dirac semimetal BaMg2Bi2
A. De Vita, J. Bakkelund, H. Świątek +13
BaMg2Bi2 is a Dirac semimetal characterized by a simple Dirac cone crossing the Fermi level at the center of the Brillouin zone, protected by C3 rotational symmetry. Together with…
Anomalous spin-optical helical effect in Ti-based kagome metal
Federico Mazzola, Wojciech Brzezicki, Chiara Bigi +32
The kagome lattice stands as a rich platform for hosting a wide array of correlated quantum phenomena, ranging from charge density waves and superconductivity to electron nematicit…
Robust spin splitting and fermiology in the layered altermagnet CoNb4Se8
Alessandro De Vita, Chiara Bigi, Davide Romanin +44
Altermagnetism defies conventional classifications of collinear magnetic phases, combining compensated magnetization with momentum-dependent, nonrelativistic spin splitting. While…
Bilayer orthogonal ferromagnetism in CrTe-based van der Waals system
Chiara Bigi, Cyriack Jego, Vincent Polewczyk +19
Systems with pronounced spin anisotropy play a pivotal role in advancing magnetization switching and spin-wave generation mechanisms, which are fundamental for spintronic technolog…
Pomeranchuk instability from electronic correlations in CsTiBi kagome metal
Chiara Bigi, Matteo Dürrnagel, Lennart Klebl +19
Among many-body instabilities in correlated quantum systems, electronic nematicity, defined by the spontaneous breaking of rotational symmetry, has emerged as a critical phenomenon…
Ultrafast spatiotemporal dynamics of a charge-density wave using femtosecond dark-field momentum microscopy
J. Maklar, P. Walmsley, I. R. Fisher +1
Understanding phase competition and phase separation in quantum materials requires access to the spatiotemporal dynamics of electronic ordering phenomena on a micro- to nanometer l…
Ultrafast charge carrier and exciton dynamics in an excitonic insulator probed by time-resolved photoemission spectroscopy
Selene Mor, Marc Herzog, Claude Monney +1
An excitonic insulator phase is expected to arise from the spontaneous formation of electron-hole pairs (excitons) in semiconductors where the exciton binding energy exceeds the si…
Modified interlayer stacking and insulator to correlated-metal transition driven by uniaxial strain in 1-TaS
Christopher W. Nicholson, Francesco Petocchi, Björn Salzmann +6
Interlayer coupling is strongly implicated in the complex electronic properties of 1-TaS , but the interplay between this and electronic correlations remains unresolved. Her…
Melting of magnetic order in by fs laser pulses
Flavio Giorgianni, Max Burian, Namrata Gurung +19
NaOsO has recently attracted significant attention for the strong coupling between its electronic band structure and magnetic ordering. Here, we used time-resolved magnetic X-r…
Mott versus hybridization gap in the low-temperature phase of -TaS
Francesco Petocchi, Christopher W. Nicholson, Bjoern Salzmann +4
We compute the correlated electronic structure of stacked -TaS bilayers using the + EDMFT method. Depending on the surface termination, the semi-infinite uncorrelated…
Exchange-striction driven ultrafast nonthermal lattice dynamics in NiO
Y. W. Windsor, D. Zahn, R. Kamrla +7
We use femtosecond electron diffraction to study ultrafast lattice dynamics in the highly correlated antiferromagnetic (AF) semiconductor NiO. Using the scattering vector (Q) depen…
Multiple magnetic ordering phenomena in multiferroic o-HoMnO3
Y. W. Windsor, M. Ramakrishnan, L. Rettig +4
Orthorhombic HoMnO3 is a multiferroic in which Mn antiferromagnetic order induces ferroelectricity. A second transition occurs within the multiferroic phase, in which a strong enha…
Deterministic control of an antiferromagnetic spin arrangement using ultrafast optical excitation
Y. W. Windsor, A. Ernst, K. Kummer +8
A central prospect of antiferromagnetic spintronics is to exploit magnetic properties that are unavailable with ferromagnets. However, this poses the challenge of accessing such pr…
Excited state band mapping and momentum-resolved ultrafast population dynamics in In/Si(111) nanowires investigated with XUV based time- and angle-resolved photoemission spectroscopy
C. W. Nicholson, M. Puppin, A. Lücke +6
We investigate the excited state electronic structure of the model phase transition system In/Si(111) using femtosecond time- and angle-resolved photoemission spectroscopy (trARPES…
Disentangling charge and structural contributions during coherent atomic motions studied by ultrafast resonant x-ray diffraction
L. Rettig, A. Caviezel, S. O. Mariager +20
We report on the ultrafast dynamics of charge order and structural response during the photoinduced suppression of charge and orbital order in a mixed-valence manganite. Employing…
Inhibition of the photoinduced structural phase transition in the excitonic insulator TaNiSe
Selene Mor, Marc Herzog, Johannes Noack +7
Femtosecond time-resolved mid-infrared reflectivity is used to investigate the electron and phonon dynamics occurring at the direct band gap of the excitonic insulator TaNiSe$_…
The Ultrafast Einstein-De Haas Effect
Christian Dornes, Yves Acremann, Matteo Savoini +20
The original observation of the Einstein-de Haas effect was a landmark experiment in the early history of modern physics that illustrates the relationship between magnetism and ang…
Beyond the molecular movie: dynamics of bands and bonds during a photo-induced phase transition
Christopher W. Nicholson, Andreas Lücke, Wolf Gero Schmidt +4
Ultrafast non-equilibrium dynamics offer a route to study the microscopic interactions that govern macroscopic behavior. In particular, photo-induced phase transitions (PIPTs) in s…
The photoinduced transition in magnetoresistive manganites: a comprehensive view
V. Esposito, L. Rettig, E. Abreu +12
We use femtosecond x-ray diffraction to study the structural response of charge and orbitally ordered PrCaMnO thin films across a phase transition induced by 800 nm…
Dimensional Crossover in a Charge Density Wave Material Probed by Angle-Resolved Photoemission Spectroscopy
Christopher W. Nicholson, Christophe Berthod, Michele Puppin +4
High-resolution angle-resolved photoemission spectroscopy (ARPES) data reveal evidence of a crossover from one-dimensional (1D) to three-dimensional (3D) behavior in the prototypic…
Revealing the role of electrons and phonons in the ultrafast recovery of charge density wave correlations in 1-TiSe
C. Monney, M. Puppin, C. W. Nicholson +8
Using time- and angle-resolved photoemission spectroscopy with selective near- and mid-infrared photon excitations, we investigate the femtosecond dynamics of the charge density wa…
Ultrafast Electronic Band Gap Control in an Excitonic Insulator
Selene Mor, Marc Herzog, Denis Golež +8
We report on the nonequilibrium dynamics of the electronic structure of the layered semiconductor TaNiSe investigated by time- and angle-resolved photoelectron spectroscopy…
Ultrafast spin density wave transition in Chromium governed by thermalized electron gas
C. W. Nicholson, C. Monney, R. Carley +4
The energy and momentum selectivity of time- and angle-resolved photoemission spectroscopy is exploited to address the ultrafast dynamics of the antiferromagnetic spin density wave…
Systematic construction of density functionals based on matrix product state computations
Michael Lubasch, Johanna I. Fuks, Heiko Appel +3
We propose a systematic procedure for the approximation of density functionals in density functional theory that consists of two parts. First, for the efficient approximation of a…