825 citations · 1.5k across the 25 of their papers we have counts for
27 papers
Optically driven ultrafast lattice contraction in a topological crystalline insulator
M. H. Berntsen, W. Chen, D. Phuyal +9
The ability to dynamically control topological order remains a central challenge in the exploration of quantum materials. Here, we investigate the lattice and electronic response o…
Floquet dressing of bulk metallic bands in 2H-NbSe2
Cong Li, Qirui Cui, Maciej Dendzik +6
Floquet dressing offers a route to controlling electronic states through periodic optical driving. Its realization in solids has centred primarily on topological-insulator surface…
Extreme Strain Controlled Correlated Metal-Insulator Transition in the Altermagnet CrSb
Cong Li, Mengli Hu, Jianfeng Zhang +14
Correlated flat bands and altermagnetism are two important directions in quantum materials, centred respectively on interaction-dominated phases and symmetry-enforced spin-textured…
Wafer-Scale Single-Crystalline Monolayer Graphene
Johanna Huhtasaari, Joyal Jain Palakulam, Awse Salha +11
Producing large-area single-crystalline graphene is key to realizing its full potential in advanced applications, including twistronics. Yet, controlling graphene growth kinetics t…
Hidden Moiré Topology of Low-Symmetry Weyl Surfaces
Cong Li, Zhilong Yang, Hongxiong Liu +11
Topological materials are defined by the correspondence between bulk topology and boundary states, yet this correspondence becomes enigmatic on low-symmetry surfaces where bulk and…
Contrasting electron-phonon interaction between electron- and hole-doped cuprates
Qinda Guo, Ke-Jun Xu, Magnus H. Berntsen +15
Spin- and charge-lattice interactions are potential key factors in the microscopic mechanism of high-temperature superconductivity in cuprates. Although both interactions can drama…
Bogoliubov Quasiparticle on the Gossamer Fermi Surface in Electron-Doped Cuprates
Ke-Jun Xu, Qinda Guo, Makoto Hashimoto +14
In contrast to hole-doped cuprates, electron-doped cuprates consistently exhibit strong antiferromagnetic correlations with a commensurate (π, π) ordering wave vector, leading to t…
Nesting-driven antiferromagnetic order in Kondo lattice CePd5Al2
Chen Zhang, Ya-Hua Yuan, Jiao-Jiao Song +13
We investigated the electronic structure of the antiferromagnetic Kondo lattice CePd5Al2 using high-resolution angle-resolved photoemission spectroscopy. The experimentally determi…
Ferrimagnetic Regulation of Weyl Fermions in a Noncentrosymmetric Magnetic Weyl Semimetal
Cong Li, Jianfeng Zhang, Yang Wang +14
The study of interaction between electromagnetism and elementary particles is a long-standing topic in physics. Likewise, the connection between particle physics and emergent pheno…
An efficient low-density grating setup for monochromatization of XUV ultrafast light sources
Qinda Guo, Maciej Dendzik, Magnus H. Berntsen +5
Ultrafast light sources have become an indispensable tool to access and understand transient phenomenon in material science. However, a simple and easy-to-implement method for harm…
In-situ exfoliation method of large-area 2D materials
Antonija Grubišić-Čabo, Matteo Michiardi, Charlotte E. Sanders +6
The success in studying 2D materials inherently relies on producing samples of large area, and high quality enough for the experimental conditions. Because their 2D nature surface…
Accessing the spin structure of buried electronic states
M. H. Berntsen, O. Götberg, B. M. Wojek +1
In spin- and angle-resolved photoemission spectroscopy (SARPES) the energy-momentum dispersion of electronic states in crystalline solids is measured along with the spin direction…
A narrow bandwidth extreme ultra-violet light source for time- and angle-resolved photoemission spectroscopy
Qinda Guo, Maciej Dendzik, Antonija Grubišić-Čabo +8
Here we present a high repetition rate, narrow band-width, extreme ultraviolet (XUV) photon source for time- and angle-resolved photoemission spectroscopy (tr-ARPES). The narrow ba…
Spectroscopic Evidence for a Three-Dimensional Charge Density Wave in Kagome Superconductor CsVSb
Cong Li, Xianxin Wu, Hongxiong Liu +10
The recently discovered AV3Sb5 (A=K, Rb, Cs) family, possessing V kagome nets, has received considerable attention due to the topological electronic structure and intriguing correl…
4/-hybridization strength in CemMnIn3m+2n heavy-fermion compounds studied by Angle-Resolved Photoemission Spectroscopy
Jiao-Jiao Song, Yang Luo, Chen Zhang +18
We systemically investigate the nature of Ce 4f electrons in structurally layered heavy-fermion compounds CcmMnIn3m+2n (with M =Co, Rh, Ir, and Pt, m=l, 2, n=0 - 2), at low tempera…
Crystal electric field splitting and f-electron hybridization in heavy fermion CePt2In7
Yu-Xia Duan, Cheng Zhang, Jan Rusz +14
We use high-resolution angle-resolved photoemission spectroscopy to investigate the electronic structure of the antiferromagnetic heavy fermion compound CePt2In7, which is a member…
A reinvestigation of the giant Rashba-split states on Bi-covered Si(111)
M. H. Berntsen, O. Götberg, O. Tjernberg
We study the electronic and spin structures of the giant Rashba-split surface states of the Bi/Si(111)-()R30 trimer phase by means of spin- and angle-reso…
Electron scattering, charge order, and pseudogap physics in LaNdSrCuO: An angle resolved photoemission spectroscopy study
Christian E. Matt, Claudia G. Fatuzzo, Y. Sassa +27
We report an angle-resolved photoemission study of the charge stripe ordered LaNdSrCuO system. A comparative and quantitative line shape analysis is prese…
Direct observation and temperature control of the surface Dirac gap in the topological crystalline insulator (Pb,Sn)Se
B. M. Wojek, M. H. Berntsen, V. Jonsson +5
Since the advent of topological insulators hosting symmetry-protected Dirac surface states, efforts have been made to gap these states in a controllable way. A new route to accompl…
On the nature of the band inversion and the topological phase transition in (Pb,Sn)Se
B. M. Wojek, P. Dziawa, B. J. Kowalski +6
The recent discovery of a topological phase transition in IV-VI narrow-gap semiconductors has revitalized the decades-old interest in the bulk band inversion occurring in these mat…
Observation of topological crystalline insulator surface states on (111)-oriented PbSnSe films
C. M. Polley, P. Dziawa, A. Reszka +13
We present angle resolved photoemission spectroscopy measurements of the surface states on in-situ grown (111) oriented films of PbSnSe, a three dimensional topologic…
Spin-polarized (001) surface states of the topological crystalline insulator Pb_{0.73}Sn_{0.27}Se
B. M. Wojek, R. Buczko, S. Safaei +9
We study the nature of (001) surface states in Pb_{0.73}Sn_{0.27}Se in the newly discovered topological-crystalline-insulator (TCI) phase as well as the corresponding topologically…
The J_{eff}=1/2 insulator Sr3Ir2O7 studied by means of angle-resolved photoemission spectroscopy
B. M. Wojek, M. H. Berntsen, S. Boseggia +6
The low-energy electronic structure of the J_{eff}=1/2 spin-orbit insulator Sr3Ir2O7 has been studied by means of angle-resolved photoemission spectroscopy. A comparison of the res…
Direct observation of decoupled Dirac states at the interface between topological and normal insulators
M. H. Berntsen, O. Götberg, B. M. Wojek +1
Several proposed applications and exotic effects in topological insulators rely on the presence of helical Dirac states at the interface between a topological and a normal insulato…