2.5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- ETH ZurichCH630 papers
- Paul Scherrer InstituteCH136 papers
- École Polytechnique Fédérale de LausanneCH61 papers
- University of ZurichCH45 papers
- University of RegensburgDE44 papers
- Institute of PhysicsPL39 papers
- Centre National de la Recherche ScientifiqueFR37 papers
- Swiss Light Source37 papers
- Polish Academy of SciencesPL36 papers
- P.L. Kapitza Institute for Physical ProblemsRU26 papers
- National Institute for Materials ScienceJP25 papers
- University of GenevaCH23 papers
12 papers · 2 filters
Asymmetric non-linear response of the IQHE
A. Siddiki, J. Horas, D. Kupidura +2
An asymmetric break-down of the integer quantized Hall effect is investigated. This rectification effect is observed as a function of the current value and its direction in conjunc…
Non-equilibrium Fluctuation Relations in a Quantum Coherent Conductor
Shuji Nakamura, Yoshiaki Yamauchi, Masayuki Hashisaka +8
We experimentally demonstrate the validity of non-equilibrium fluctuation relations by using a quantum coherent conductor. In equilibrium the fluctuation-dissipation relation leads…
Asymmetric Franck-Condon factors in suspended carbon nanotube quantum dots
Fabio Cavaliere, Eros Mariani, Renaud Leturcq +2
Electronic states and vibrons in carbon nanotube quantum dots have in general different location and size. As a consequence, the conventional Anderson-Holstein model, coupling vibr…
Nuclear Polarization in Quantum Point Contacts in an In-Plane Magnetic Field
Y. Ren, W. Yu, S. M. Frolov +2
Nuclear spin polarization is typically generated in GaAs quantum point contacts (QPCs) when an out-of-plane magnetic field gives rise to spin-polarized quantum Hall edge states, an…
Phonon-mediated vs. Coulombic Back-Action in Quantum Dot circuits
D. Harbusch, D. Taubert, H. P. Tranitz +2
Quantum point contacts (QPCs) are commonly employed to capacitively detect the charge state of coupled quantum dots (QD). An indirect back-action of a biased QPC onto a double QD l…
Engineering ultralong spin coherence in two-dimensional hole systems at low temperatures
T. Korn, M. Kugler, M. Griesbeck +7
For the realisation of scalable solid-state quantum-bit systems, spins in semiconductor quantum dots are promising candidates. A key requirement for quantum logic operations is a s…
Evidence for localization and 0.7 anomaly in hole quantum point contacts
Y. Komijani, M. Csontos, I. Shorubalko +5
Quantum point contacts implemented in p-type GaAs/AlGaAs heterostructures are investigated by low-temperature electrical conductance spectroscopy measurements. Besides one-dimensio…
Acoustoelectric effects in very high-mobility -SiGe/Ge/SiGe heterostructure
I. L. Drichko, A. M. Diakonov, E. V. Lebedeva +4
Measurement results of the acoustoelectric effects (surface acoustic waves (SAW) attenuation and velocity) in a high-mobility -SiGe/Ge/SiGe structure are presented. The structur…
Graphene quantum dots in perpendicular magnetic fields
J. Guettinger, C. Stampfer, T. Frey +2
We report transport experiments on graphene quantum dots. We focus on excited state spectra in the near vicinity of the charge neutrality point and signatures of the electron-hole…
Transport through graphene double dots
F. Molitor, S. Dröscher, J. Güttinger +4
We present Coulomb blockade measurements in a graphene double dot system. The coupling of the dots to the leads and between the dots can be tuned by graphene in-plane gates. The co…
Transport through (Ga,Mn)As nanoislands: Coulomb-blockade and temperature dependence of the conductance
Markus Schlapps, Teresa Lermer, Stefan Geissler +5
We report on magnetotransport measurements of nanoconstricted (Ga,Mn)As devices showing very large resistance changes that can be controlled by both an electric and a magnetic fiel…
Aharonov-Bohm effect in a side-gated graphene ring
Magdalena Huefner, Françoise Molitor, Arnhild Jacobsen +4
We investigate the magnetoresistance of a side-gated ring structure etched out of single-layer graphene. We observe Aharonov-Bohm oscillations with about 5% visibility. We are able…