98 citations · 388 across the 10 of their papers we have counts for
10 papers
Giant anomalous Josephson effect as a probe of spin texture in topological insulators
Niklas Hüttner, Andreas Costa, Leandro Tosi +9
Surface states of topological insulators feature chiral spin-momentum locking. When such states are used as weak link between two superconductors, their spin texture gives rise to…
Anomalous conductance steps in three-dimensional topological insulator HgTe-based quantum point contacts
Elisabeth Richter, Michael Barth, Dmitriy A. Kozlov +8
We explore electrical transport through a point contact in strained HgTe, a three-dimensional topological insulator. In the absence of a magnetic field , there is no quantizatio…
-periodic supercurrent tuned by an axial magnetic flux in topological insulator nanowires
Ralf Fischer, Jordi Picó-Cortés, Wolfgang Himmler +7
Topological insulator (TI) nanowires in proximity with conventional superconductors have been proposed as a tunable platform to realize topological superconductivity and Majorana z…
Weak antilocalization in partially relaxed 200-nm HgTe films
M. L. Savchenko, D. A. Kozlov, Z. D. Kvon +2
The anomalous magnetoresistance caused by the weak antilocalization (WAL) effects in 200-nm HgTe films is experimentally studied. The film is a high quality 3D topological insulato…
Quantum Hall effect and Landau levels in the 3D topological insulator HgTe
Johannes Ziegler, Dmitriy A. Kozlov, Nikolay N. Mikhailov +2
We review low and high field magnetotransport in 80 nm-thick strained HgTe, a material that belongs to the class of strong three-dimensional topological insulators. Utilizing a top…
Ballistic geometric resistance resonances in a single surface of a topological insulator
Hubert Maier, Johannes Ziegler, Ralf Fischer +5
Transport in topological matter has shown a variety of novel phenomena over the last decade. Although numerous transport studies have been conducted on three-dimensional topologica…
Probing Spin Helical Surface States in Topological HgTe Nanowires
Johannes Ziegler, Raphael Kozlovsky, Cosimo Gorini +10
Nanowires with helical surface states represent key prerequisites for observing and exploiting phase-coherent topological conductance phenomena, such as spin-momentum locked quantu…
Probing quantum capacitance in a 3D topological insulator
D. A. Kozlov, D. Bauer, J. Ziegler +6
We measure the quantum capacitance and probe thus directly the electronic density of states of the high mobility, Dirac type of two-dimensional electron system, which forms on the…
Cyclotron Resonance Assisted Photocurrents in Surface States of a 3D Topological Insulator Based on a Strained High Mobility HgTe Film
K. -M. Dantscher, D. A. Kozlov, P. Olbrich +12
We report on the observation of cyclotron resonance induced photocurrents, excited by continuous wave terahertz radiation, in a 3D topological insulator (TI) based on an 80 nm stra…
Transport properties of a 3D topological insulator based on a strained high mobility HgTe film
D. A. Kozlov, Z. D. Kvon, D. Weiss +3
We investigated the magnetotransport properties of strained, 80nm thick HgTe layers featuring a high mobility of mu =4x10^5 cm^2/Vs. By means of a top gate the Fermi-energy is tune…