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
14 papers · 1 filter
Oxygen isotope effect on the in-plane penetration depth in underdoped La_{2-x}Sr_{x}CuO_{4} single crystals
J. Hofer, K. Conder, T. Sasagawa +4
We report measurements of the oxygen isotope effect (OIE) on the in-plane penetration depth λ_{ab}(0) in underdoped La_{2-x}Sr_{x}CuO_{4} single crystals. A highly sensitive magnet…
Torque magnetometry on single-crystal high temperature superconductors near the critical temperature: a scaling approach
J. Hofer, T. Schneider, J. M. Singer +6
Angular-dependent magnetic torque measurements performed near the critical temperature on single crystals of HgBa_{2}CuO_{4+y}, La_{2-x}Sr{x}CuO_{4}, and YBa_{2}Cu_{3}O_{6.93} are…
Coexistence of Weak Localization and a Metallic Phase in Si/SiGe Quantum Wells
V. Senz, T. Heinzel, T. Ihn +4
Magnetoresistivity measurements on p-type Si/SiGe quantum wells reveal the coexistence of a metallic behavior and weak localization. Deep in the metallic regime, pronounced weak lo…
Dynamics of Excited Electrons in Copper and Ferromagnetic Transition Metals: Theory and Experiment
R. Knorren, K. H. Bennemann, R. Burgermeister +1
Both theoretical and experimental results for the dynamics of photoexcited electrons at surfaces of Cu and the ferromagnetic transition metals Fe, Co, and Ni are presented. A model…
In-plane gate single-electron transistor in Ga[Al]As fabricated by scanning probe lithography
S. Luescher, A. Fuhrer, R. Held +3
A single-electron transistor has been realized in a Ga[Al]As heterostructure by oxidizing lines in the GaAs cap layer with an atomic force microscope. The oxide lines define the bo…
Shifting a Quantum Wire through a Disordered Crystal: Observation of Conductance Fluctuations in Real Space
T. Heinzel, G. Salis, R. Held +4
A quantum wire is spatially displaced by suitable electric fields with respect to the scatterers inside a semiconductor crystal. As a function of the wire position, the low-tempera…
Non-Gaussian distribution of nearest-neighbour Coulomb peak spacings in metallic single electron transistors
M. Furlan, T. Heinzel, B. Jeanneret +2
The distribution of nearest-neighbour spacings of Coulomb blockade oscillation peaks in normal conducting aluminum single electron transistors is found to be non-Gaussian. A pronou…
Stripe Conductivity in La(1.775)Sr(0.225)NiO(4)
Yu. G. Pashkevich, V. A. Blinkin, V. P. Gnezdilov +10
We report Raman light-scattering and optical conductivity measurements on a single crystal of La(1.775)Sr(0.225)NiO(4) which exhibits incommensurate charge-stripe order. The extra…
Zero-field spin splitting in InAs-AlSb quantum wells revisited
S. Brosig, K. Ensslin, R. J. Warburton +4
We present magnetotransport experiments on high-quality InAs-AlSb quantum wells that show a perfectly clean single-period Shubnikov-de Haas oscillation down to very low magnetic fi…
Operation characteristics of piezoelectric quartz tuning forks in high magnetic fields at liquid helium temperatures
J. Rychen, T. Ihn, P. Studerus +5
Piezoelectric quartz tuning forks are investigated in view of their use as force sensors in dynamic mode scanning probe microscopy at temperatures down to 1.5 K and in magnetic fie…
Optical Properties of MFe_4P_12 filled skutterudites
S. V. Dordevic, N. R. Dilley, E. D. Bauer +3
Infrared reflectance spectroscopy measurements were made on four members of the MFe_4P_12 family of filled skutterudites, with M=La, Th, Ce and U. In progressing from M=La to U the…
Paramagnetic reentrant effect in high purity mesoscopic AgNb proximity structures
F. Bernd Mueller-Allinger, Ana Celia Mota
We discuss the magnetic response of clean Ag coated Nb proximity cylinders in the temperature range 150 μK < T < 9 K. In the mesoscopic temperature regime, the normal metal-superco…
Mode Spectroscopy and Level Coupling in Ballistic Electron Waveguides
G. Salis, T. Heinzel, K. Ensslin +4
A tunable quantum point contact with modes occupied in both transverse directions is studied by magnetotransport experiments. We use conductance quantization of the one-dimensional…
A low-temperature dynamic mode scanning force microscope operating in high magnetic fields
J. Rychen, T. Ihn, P. Studerus +2
A scanning force microscope was implemented operating at temperatures below 4.2K and in magnetic fields up to 8T. Piezoelectric quartz tuning forks were employed for non optical ti…