| Full text | |
| Author(s): |
Chaves, Davi A. D.
;
Nulens, Lukas
;
Dausy, Heleen
;
Raes, Bart
;
Yue, Donghua
;
Ortiz, Wilson A.
;
Motta, Maycon
;
Van Bael, Margriet J.
;
Van de Vondel, Joris
Total Authors: 9
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW APPLIED; v. 19, n. 3, p. 8-pg., 2023-03-28. |
| Abstract | |
With the development of alternative computing schemes working at cryogenic temperatures, super-conducting memory elements have gained interest. In this context, superconducting quantum interference devices (SQUIDs) are promising candidates, as they may trap different discrete amounts of magnetic flux. We demonstrate that a field-assisted writing scheme allows such a device to operate as a multilevel memory by the readout of eight distinct vorticity states at zero magnetic field. We present an alternative mechanism based on single phase slips, which allows the vorticity state to be switched while preserving superconductivity. This mechanism provides a possibly deterministic channel for flux control in SQUID -based memories, under the condition that the field-dependent energy of different vorticity states are nearby. (AU) | |
| FAPESP's process: | 21/08781-8 - Superconductivity at different textures: sintered granulars, thin films of variable thickness and granular structures formed by simple geometric elements juxtaposed |
| Grantee: | Wilson Aires Ortiz |
| Support Opportunities: | Regular Research Grants |