Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Madsen, M. H."'
Autor:
Grove-Rasmussen, K., Steffensen, G., Jellinggaard, A., Madsen, M. H., Žitko, R., Paaske, J., Nygård, J.
Publikováno v:
Nature Communications 9, 2376 (2018)
A magnetic impurity coupled to a superconductor gives rise to a Yu-Shiba-Rusinov (YSR) state inside the superconducting energy gap. With increasing exchange coupling the excitation energy of this state eventually crosses zero and the system switches
Externí odkaz:
http://arxiv.org/abs/1711.06081
Publikováno v:
Phys. Rev. B 94, 195415 (2016)
We present magnetoresistance (MR) experiments on an InAs nanowire quantum dot device with two ferromagnetic sidegates (FSGs) in a split-gate geometry. The wire segment can be electrically tuned to a single dot or to a double dot regime using the FSGs
Externí odkaz:
http://arxiv.org/abs/1608.07143
Publikováno v:
Appl. Phys. Lett. 107, 243101 (2015)
The thermal gradient along indium-arsenide nanowires was engineered by a combination of fabricated micro- trenches in the supporting substrate and focused laser irradiation. This allowed local control of thermally activated oxidation reactions of the
Externí odkaz:
http://arxiv.org/abs/1601.06583
Autor:
d'Hollosy, S., Jung, M., Baumgartner, A., Guzenko, V. A., Madsen, M. H., Nygård, J., Schönenberger, C.
Publikováno v:
Nano Lett. 15, 4585 (2015)
Semiconducting nanowires (NWs) are a versatile, highly tunable material platform at the heart of many new developments in nanoscale and quantum physics. Here, we demonstrate charge pumping, i.e., the controlled transport of individual electrons throu
Externí odkaz:
http://arxiv.org/abs/1509.01574
Autor:
Fülöp, G., Domínguez, F., d'Hollosy, S., Baumgartner, A., Makk, P., Madsen, M. H., Guzenko, V. A., Nygård, J., Schönenberger, C., Yeyati, A. Levy, Csonka, S.
Publikováno v:
Phys. Rev. Lett. 115, 227003 (2015)
Cooper pair splitting (CPS) is a process in which the electrons of naturally occurring spin-singlet pairs in a superconductor are spatially separated using two quantum dots. Here we investigate the evolution of the conductance correlations in an InAs
Externí odkaz:
http://arxiv.org/abs/1507.01036
Autor:
Krogstrup, P., Ziino, N. L. B., Chang, W., Albrecht, S. M., Madsen, M. H., Johnson, E., Nygård, J., Marcus, C. M., Jespersen, T. S.
Publikováno v:
Nature Materials 14, 400 (2015)
Controlling the properties of semiconductor/metal interfaces is a powerful method for designing functionality and improving the performance of electrical devices. Recently semiconductor/superconductor hybrids have appeared as an important example whe
Externí odkaz:
http://arxiv.org/abs/1411.6254
Autor:
Fülöp, G., d'Hollosy, S., Baumgartner, A., Makk, P., Guzenko, V. A., Madsen, M. H., Nygård, J., Schönenberger, C., Csonka, S.
Publikováno v:
Phys. Rev. B 90, 235412 (2014)
A Cooper pair splitter consists of a central superconducting contact, S, from which electrons are injected into two parallel, spatially separated quantum dots (QDs). This geometry and electron interactions can lead to correlated electrical currents d
Externí odkaz:
http://arxiv.org/abs/1409.0818
Autor:
Ziino, N. L. B., Krogstrup, P., Madsen, M. H., Johnson, E., Wagner, J. B., Marcus, C. M., Nygård, J., Jespersen, T. S.
We report a method for making epitaxial superconducting contacts to semiconducting nanowires. The temperature and gate characteristics demonstrate barrier-free electrical contact, and the properties in the superconducting state are investigated at lo
Externí odkaz:
http://arxiv.org/abs/1309.4569
Publikováno v:
Journal of Physics: Conference Series; 2024, Vol. 2767 Issue 1, p1-9, 9p
Publikováno v:
Journal of Physics: Conference Series; 2024, Vol. 2767 Issue 1, p1-10, 10p