42 citations · 146 across the 12 of their papers we have counts for
12 papers
Intrinsic Quasiparticle Lifetime in a Superconducting Aluminum
Konrad Norowski, Marek Foltyn, Alexander Savin +1
We use time-resolved thermometry to monitor the decay of nonequilibrium quasiparticles in superconducting Al in the temperature range from K to K. The quasiparticle l…
Quantum thermodynamics with a single superconducting vortex
Marek Foltyn, Konrad Norowski, Alexander Savin +1
We demonstrate complete control over dynamics of a single superconducting vortex in a nanostructure which we coin the Single Vortex Box (SVB). Our device allows us to trap the vort…
Probing confined vortices with a superconducting nanobridge
Marek Foltyn, Konrad Norowski, Michał J. Wyszyński +3
We realize a superconducting nanodevice in which vortex traps in the form of an aluminum square are integrated with a Dayem nanobridge. We perform field-cooling of the traps arrivi…
Electrical switching of antiferromagnetic CoO | Pt across the Néel temperature
M. J. Grzybowski, C. F. Schippers, M. E. Bal +5
One of the most important challenges in antiferromagnetic spintronics is the read-out of the Néel vector state. High current densities up to 10 Acm used in the electrica…
Stochastic thermal feedback in switching measurements of superconducting nanobridge caused by overheated electrons and phonons
Maciej Zgirski, Marek Foltyn, Alexander Savin +1
We study correlated switchings of superconducting nanobridge probed with train of current pulses. For pulses with low repetition rate each pulse transits the superconducting bridge…
Heat hunting in freezer: Direct measurement of quasiparticle diffusion in superconducting nanowire
Maciej Zgirski, Marek Foltyn, Alexander Savin +2
Propagation and relaxation of nonequilibrium quasiparticles in superconductors are of key importance for functioning of numerous nanoscale devices, enabling operation of some of th…
Electrical characteristics of vertical-geometry Schottky junction to magnetic insulator (Ga,Mn)N heteroepitaxially grown on sapphire
Karolina Kalbarczyk, Krzysztof Dybko, Katarzyna Gas +7
Schottky barrier height and the ideality factor are established for the first time in the single phase (Ga,Mn)N using a vertical geometry device. The material has been heteroep…
Flipping coin experiment for studying switching in Josephson junctions and superconducting wires
Marek Foltyn, Konrad Norowski, Alexander Savin +1
Josephson junctions and superconducting wires when probed with current pulses exhibit stochastic switching from superconducting to a stable non-zero voltage state. Electrical curre…
Conductance resonances and crossing of the edge channels in the quantum Hall ferromagnet state of Cd(Mn)Te microstructures
E. Bobko, D. Płoch, D. Śnieżek +6
In this paper we report on the observation of very high and narrow magnetoconductance peaks which we attribute to the transition to quantum Hall ferromagnet (QHFM) state occurring…
Nanosecond thermometry with Josephson junction
M. Zgirski, M. Foltyn, A. Savin +2
We demonstrate a novel approach to thermometry at the nanoscale exploiting a superconducting weak link. Such a weak link probed with nanosecond current pulses serves as a temperatu…
Stretching magnetism with an electric field in a nitride semiconductor
D. Sztenkiel, M. Foltyn, G. P. Mazur +11
By direct magnetization measurements, performed employing a new detection scheme, we demonstrate an electrical control of magnetization in wurtzite (Ga,Mn)N. In this dilute magneti…
Gambling with superconducting fluctuations
Marek Foltyn, Maciej Zgirski
Superconducting nanowires and Josephson junctions, when biased close to superconducting critical current, can switch to a non-zero voltage state by thermal or quantum fluctuations.…