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10 papers · 2 filters
Tunable steady-state domain wall oscillator with perpendicular magnetic anisotropy
A. Bisig, O. Boulle, M. Klaui
We theoretically study domain wall oscillations upon the injection of a dc current through a geometrically constrained wire with perpendicular magnetic anisotropy. The oscillation…
Coherent detection of electron dephasing
E. Strambini, L. Chirolli, V. Giovannetti +4
We show that an Aharonov-Bohm (AB) ring with asymmetric electron injection can act as a coherent detector of electron dephasing. The presence of a dephasing source in one of the tw…
Hyperfine-induced valley mixing and the spin-valley blockade in carbon-based quantum dots
András Pályi, Guido Burkard
Hyperfine interaction (HFI) in carbon nanotube and graphene quantum dots is due to the presence of 13C atoms. We theoretically show that in these structures the short-range nature…
Quantum non-demolition measurements of a qubit coupled to a harmonic oscillator
Luca Chirolli, Guido Burkard
We theoretically describe the weak measurement of a two-level system (qubit) and quantify the degree to which such a qubit measurement has a quantum non-demolition (QND) character.…
Models of mesoscopic time-resolved current detection
Adam Bednorz, Wolfgang Belzig
Quantum transport in mesoscopic conductors is essentially governed by the laws of quantum mechanics. One of the major open questions of quantum mechanics is what happens if non-com…
Magnetotransport effects of ultrathin Ni80Fe20 films probed in-situ
Stephen Krzyk, Alexander von Schmidsfeld, Mathias Kläui +1
We have investigated the magnetoresistance of Permalloy (Ni80Fe20) films with thicknesses ranging from a single monolayer to 12 nm, grown on Al2O3, MgO and SiO2 substrates. Growth…