165 citations · 425 across the 16 of their papers we have counts for
17 papers
Experimental observation of metallic states with different dimensionality in a quasi-1D charge density wave compound
P. Rezende-Gonçalves, M. Thees, J. Rojas Castillo +14
TaTe is a quasi-1D tetrachalcogenide that exhibits a CDW instability caused by a periodic lattice distortion. Recently, pressure-induced superconductivity has been achieved in…
Imaging the itinerant-to-localized transmutation of electrons across the metal-to-insulator transition in VO
Maximilian Thees, Min-Han Lee, Rosa Luca Bouwmeester +14
In solids, strong repulsion between electrons can inhibit their movement and result in a "Mott" metal-to-insulator transition (MIT), a fundamental phenomenon whose understanding ha…
Long-lived Andreev states as evidence for protected hinge modes in a bismuth nanoring Josephson junction
A. Bernard, Y. Peng, A. Kasumov +9
Second-order topological insulators are characterized by helical, non-spin-degenerate, one-dimensional states running along opposite crystal hinges, with no backscattering. Injecti…
From hidden-order to antiferromagnetism: electronic structure changes in Fe-doped URuSi
Emmanouil Frantzeskakis, Ji Dai, Cédric Bareille +12
In matter, any spontaneous symmetry breaking induces a phase transition characterized by an order parameter, such as the magnetization vector in ferromagnets, or a macroscopic many…
Experimental observation and spin texture of Dirac node arcs in tetradymite topological metals
J. Dai, E. Frantzeskakis, N. Aryal +10
We report the observation of a non-trivial spin texture in Dirac node arcs, novel topological objects formed when Dirac cones of massless particles extend along an open one-dimensi…
Density-tuned isotherms and dynamic change at phase transition in a gate-controlled superconducting system
Shamashis Sengupta, Miguel Monteverde, Anil Murani +3
Two-dimensional electron gases in SrTiO3-based heterostructures provide a platform to study the real-time evolution of the macroscopic state with a variation of the carrier density…
Universal Fabrication of Two-Dimensional Electron Systems in Functional Oxides
Tobias Chris Rödel, Franck Fortuna, Shamashis Sengupta +9
Two-dimensional electron systems (2DESs) in functional oxides are promising for applications, but their fabrication and use, essentially limited to SrTiO-based heterostructures…
Tailoring Vanadium Dioxide Film Orientation using Nanosheets: A Combined Microscopy, Diffraction, Transport and Soft X-ray in Transmission Study
Phu Tran Phong Le, Kevin Hofhuis, Abhi Rana +17
VO2 is a much-discussed material for oxide electronics and neuromorphic computing applications. Here, heteroepitaxy of vanadium dioxide (VO2) was realized on top of oxide nanosheet…
Gate-tunable superconductivity at SrTiO3 surface realized by Al layer evaporation
Shamashis Sengupta, Emilie Tisserond, Florence Linez +8
Electronic properties of low dimensional superconductors are determined by many-body-effects. This physics has been studied traditionally with superconducting thin films, and in re…
Two-dimensional electron system at the magnetically tunable EuO/SrTiO interface
Patrick Lömker, Tobias C. Rödel, Timm Gerber +6
We create a two-dimensional electron system (2DES) at the interface between EuO, a ferromagnetic insulator, and SrTiO3, a transparent non-magnetic insulator considered the bedrock…
Converting topological insulators into topological metals within the tetradymite family
K. -W. Chen, N. Aryal, J. Dai +14
We report the electronic band structures and concomitant Fermi surfaces for a family of exfoliable tetradymite compounds with the formula , obtained as a modificatio…
Two-dimensional electron systems in ATiO3 perovskites (A = Ca, Ba, Sr): control of orbital hybridization and order
Tobias C. Rödel, Manali Vivek, Franck Fortuna +6
We report the existence of a two-dimensional electron system (2DES) at the (001) surface of CaTiO3. Using angle-resolved photoemission spectroscopy, we find a hybridization between…
2D surprises at the surface of 3D materials: confined electron systems in transition metal oxides
Emmanouil Frantzeskakis, Tobias Chris Rödel, Franck Fortuna +1
The scope of this article is to review the state-of-the-art in the field of confined electron systems generated at the bare surfaces of transition metal oxides (TMOs). This scienti…
Hubbard band or oxygen vacancy states in the correlated electron metal SrVO?
S. Backes, T. C. Rödel, F. Fortuna +19
We study the effect of oxygen vacancies on the electronic structure of the model strongly correlated metal SrVO. By means of angle-resolved photoemission (ARPES) synchrotron ex…
Irreversible transformation of ferromagnetic ordered stripe domains in single-shot IR pump - resonant X-ray scattering probe experiments
Nicolas Bergeard, Stefan Schaffert, Víctor López-Flores +21
The evolution of a magnetic domain structure upon excitation by an intense, femtosecond Infra-Red (IR) laser pulse has been investigated using single-shot based time-resolved reson…
Superconducting nanowires by electron-beam-induced deposition
Shamashis Sengupta, Chuan Li, Cedric Baumier +4
Superconducting nanowires can be fabricated by decomposition of an organometallic gas using a focused beam of Ga ions. However, physical damage and unintentional doping often resul…
Magnetic field resistant quantum interferences in bismuth nanowires based Josephson junctions
Chuan Li, A. Kasumov, A. Murani +11
We investigate proximity induced superconductivity in micrometer-long bismuth nanowires con- nected to superconducting electrodes with a high critical field. At low temperature we…