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Switchable spiral Josephson junction: A superconducting spin-valve proposal
- Publication Year :
- 2022
-
Abstract
- We propose a superconducting spin valve based on a Josephson junction with B20-familymagnetic metal as a barrier material. Our analysis shows that the states of this element can be switched by reorienting the intrinsic non-collinear magnetization of the spiral magnet. This reorientation modifies long-range spin-triplet correlations and thereby strongly influences the critical Josephson current. Compared to superconducting spin valves proposed earlier, our device has the following advantages: (a) it contains only one barrier layer, which makes it easier to fabricate and control; (b) its ground state is stable, which prevents uncontrolled switching;(c) it is compatible with devices of low-T Josephson electronics. This device may switch between two logical states which exhibit two different values of critical current, or its positive and negative values. I.e. 0- p switch is achievable on a simple Josephson junction.
- Subjects :
- superconducting spin valves
electronic
Josephson junction
switchable
spiral
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.od.......610..eeb84d793ac85bc5494bc34e99293221