825 citations · 1.8k across the 18 of their papers we have counts for
18 papers
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…
Free-standing magnetic nano-membranes for electron spin-filtering applications
T. Övergaard, B. M Wojek, M. Leandersson +4
Free-standing ferromagnetic nano-membranes with thicknesses below 10 nm could effectively be used for spin selective filtering of electrons. Such membranes can work both as spin de…
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…
Comment on "Probing two- and three-dimensional electrons in MgB2 with soft x-ray angle-resolved photoemission"
B. M. Wojek
A recent article by Sassa et al. [Phys. Rev. B 91, 045114 (2015)] reports on a soft x-ray angle-resolved photoemission study of MgB2. The analysis and/or presentation of the collec…
Site-dependent charge transfer at the Pt(111)-ZnPc interface and the effect of iodine
S. Ahmadi, B. Agnarsson, I. Bidermane +4
The electronic structure of ZnPc, from sub-monolayers to thick films, on bare and iodated Pt(111) is studied by means of X-ray photoelectron spectroscopy (XPS), X-ray absorption sp…
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…
Magnetic phase diagram of low-doped La{2-x}SrxCuO4 thin films studied by low-energy muon-spin rotation
E. Stilp, A. Suter, T. Prokscha +7
The magnetic phase diagram of La2-xSrxCuO4 thin-films grown on single-crystal LaSrAlO4 substrates has been determined by low-energy muon-spin rotation. The diagram shows the same f…
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…
Topological crystalline insulator states in Pb(1-x)Sn(x)Se
P. Dziawa, B. J. Kowalski, K. Dybko +9
Topological insulators are a novel class of quantum materials in which time-reversal symmetry, relativistic (spin-orbit) effects and an inverted band structure result in electronic…
The Meissner effect in a strongly underdoped cuprate above its critical temperature
Elvezio Morenzoni, Bastian M. Wojek, Andreas Suter +3
The Meissner effect and the associated perfect "bulk" diamagnetism together with zero resistance and gap opening are characteristic features of the superconducting state. In the ps…
Magnetism, superconductivity and coupling in cuprate heterostructures probed by low-energy muon-spin rotation
B. M. Wojek, E. Morenzoni, D. G. Eshchenko +8
We present a low-energy muon-spin-rotation study of the magnetic and superconducting properties of YBa2Cu3O7/PrBa2Cu3O7 trilayer and bilayer heterostructures. By determining the ma…
musrfit: A free platform-independent framework for muSR data analysis
A. Suter, B. M. Wojek
A free data-analysis framework for muSR has been developed. musrfit is fully written in C++, is running under GNU/Linux, Mac OS X, as well as Microsoft Windows, and is distributed…
Superconductivity in La(1.56)Sr(0.44)CuO(4)/La(2)CuO(4) superlattices
A. Suter, E. Morenzoni, T. Prokscha +5
Superlattices of the repeated structure La(1.56)Sr(0.44)CuO(4)/La(2)CuO(4) (LSCO-LCO), where none of the constituents is superconducting, show a superconducting transition of T_c \…
Magnetism in the 2D Limit and Interface Superconductivity in Metal-Insulator La(2-x)Sr(x)CuO(4) Superlattices
A. Suter, E. Morenzoni, T. Prokscha +6
We show, by means of low-energy muon spin rotation measurements, that few-unit-cells thick La(2)CuO(4) layers synthesized digitally by molecular beam epitaxy synthesis are antiferr…
Study of the mixed state of La_{1.83}Sr_{0.17}CuO_{4} by means of muon-spin rotation and magnetization experiments in a low magnetic field
B. M. Wojek, S. Weyeneth, S. Bosma +2
Muon-spin rotation (muSR) experiments are often used to study the magnetic field distribution in type-II superconductors in the vortex state. Based on the determination of the magn…