Zobrazeno 1 - 10
of 671
pro vyhledávání: '"Witt, J. D."'
Autor:
Harlech-Jones, B., Waddy, S. J., Witt, J. D. S., Govender, D., Casparis, L., Martinez, E., Kallaher, R., Gronin, S., Gardner, G., Manfra, M. J., Reilly, D. J.
We report microwave impedance measurements of a superconductor-semiconductor hybrid nanowire device with three terminals (3T). Our technique makes use of transmission line resonators to acquire the nine complex scattering matrix parameters (S-paramet
Externí odkaz:
http://arxiv.org/abs/2207.12516
Autor:
Witt, J. D. S., Pauka, S. J., Gardner, G. C., Gronin, S., Wang, T., Thomas, C., Manfra, M. J., Reilly, D. J., Cassidy, M. C.
The spin-orbit interaction and spin-relaxation mechanisms of a shallow InAs quantum well heterostructure are investigated by magnetoconductance measurements as a function of an applied top-gate voltage. The data were fit using the Iordanskii--Lyanda-
Externí odkaz:
http://arxiv.org/abs/2111.15170
Autor:
Jouan, A., Witt, J. D. S., Gardner, G. C., Thomas, C., Lindemann, T., Gronin, S., Manfra, M. J., Reilly, D. J.
We combine electron beam lithography and masked anodization of epitaxial aluminium to define tunnel junctions via selective oxidation, alleviating the need for wet-etch processing or direct deposition of dielectric materials. Applying this technique
Externí odkaz:
http://arxiv.org/abs/2105.11006
Autor:
Witt, J. D. S., Gardner, G. C., Thomas, C., Lindemann, T., Gronin, S., Manfra, M. J., Reilly, D. J.
We report magneto-transport measurements of quasi-1-dimensional (1D) Al-InAs nanowires produced via etching of a hybrid superconductor-semiconductor two-dimensional electron gas (2DEG). Tunnel spectroscopy measurements above the superconducting gap p
Externí odkaz:
http://arxiv.org/abs/2103.08752
Autor:
Pauka, S. J., Witt, J. D. S., Allen, C. N., Harlech-Jones, B., Jouan, A., Gardner, G. C., Gronin, S., Wang, T., Thomas, C., Manfra, M. J., Reilly, D. J., Cassidy, M. C.
Candidate systems for topologically-protected qubits include two-dimensional electron gases (2DEGs) based on heterostructures exhibiting a strong spin-orbit interaction (SOI) and superconductivity via the proximity effect. For InAs- or InSb-based mat
Externí odkaz:
http://arxiv.org/abs/1908.08689
Autor:
Satchell, N., Witt, J. D. S., Flokstra, M. G., Lee, S. L., Cooper, J. F. K., Kinane, C. J., Langridge, S., Burnell, G.
Publikováno v:
Phys. Rev. Applied 7, 044031 (2017)
Superconducting spintronics in hybrid superconductor/ferromagnet (S-F) heterostructures provides an exciting potential new class of device. The prototypical super-spintronic device is the superconducting spin-valve, where the critical temperature, $T
Externí odkaz:
http://arxiv.org/abs/1701.08065
Autor:
Chiodi, F., Witt, J. D. S., Smits, R. G. J., Qu, L., Halász, G. B., Wu, C. -T., Valls, O. T., Halterman, K., Robinson, J. W. A., Blamire, M. G.
Publikováno v:
Europhysics Letters - EPL 101, 37002 (2013)
We investigate the critical temperature Tc of a thin s-wave superconductor (Nb) proximity coupled to a helical rare earth ferromagnet (Ho). As a function of the Ho layer thickness, we observe multiple oscillations of Tc superimposed on a slow decay,
Externí odkaz:
http://arxiv.org/abs/1211.1169
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Autor:
Pauka, S. J., Witt, J. D. S., Allen, C. N., Harlech-Jones, B., Jouan, A., Gardner, G. C., Gronin, S., Wang, T., Thomas, C., Manfra, M. J., Gukelberger, J., Gamble, J., Reilly, D. J., Cassidy, M. C.
Publikováno v:
Journal of Applied Physics; 9/21/2020, Vol. 128 Issue 11, p1-7, 7p
Akademický článek
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