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Title: Solitonic Josephson-based meminductive systems

Memristors, memcapacitors, and meminductors represent an innovative generation of circuit elements whose properties depend on the state and history of the system. The hysteretic behavior of one of their constituent variables, is their distinctive fingerprint. This feature endows them with the ability to store and process information on the same physical location, a property that is expected to benefit many applications ranging from unconventional computing to adaptive electronics to robotics. Therefore, it is important to find appropriate memory elements that combine a wide range of memory states, long memory retention times, and protection against unavoidable noise. Although several physical systems belong to the general class of memelements, few of them combine these important physical features in a single component. Here in this paper, we demonstrate theoretically a superconducting memory based on solitonic long Josephson junctions. Moreover, since solitons are at the core of its operation, this system provides an intrinsic topological protection against external perturbations. We show that the Josephson critical current behaves hysteretically as an external magnetic field is properly swept. Accordingly, long Josephson junctions can be used as multi-state memories, with a controllable number of available states, and in other emerging areas such as memcomputing, i.e., computing directlymore » in/by the memory.« less
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Consiglio Nazionale delle Ricerche (CNR), Genova (Italy). L'Istituto Superconduttori, Materialiari innovativi e Dispositivi (SPIN); Consiglio Nazionale delle Ricerche (CNR), Pisa (Italy). Istituto Nanoscienze (CNR-NANO) and Scuola Normale Superiore (SNS), NEST Lab.; Lobachevsky State Univ., Nizhny Novgorod (Russia)
  2. Consiglio Nazionale delle Ricerche (CNR), Genova (Italy). L'Istituto Superconduttori, Materialiari innovativi e Dispositivi (SPIN)
  3. Univ. of California, San Diego, CA (United States). Dept. of Physics
  4. Consiglio Nazionale delle Ricerche (CNR), Pisa (Italy). Istituto Nanoscienze (CNR-NANO) and Scuola Normale Superiore (SNS), NEST Lab.
Publication Date:
Grant/Contract Number:
FG02-05ER46204; 630925; 615187; RBFR1379UX
Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Research Org:
Univ. of California, San Diego, CA (United States)
Sponsoring Org:
USDOE; European Union (EU)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Superconducting devices; Superconducting properties and materials
OSTI Identifier:
1368379