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Nonlocal magnetic configuration controlling realized in a triple-quantum-dot Josephson junction
- Source :
- Physica E: Low-dimensional Systems and Nanostructures. 81:26-30
- Publication Year :
- 2016
- Publisher :
- Elsevier BV, 2016.
-
Abstract
- We investigate the Josephson effect in a superconductor/triple-quantum-dot/superconductor junction in which the central dot is coupled to the superconductors. It is found that the supercurrent exhibits rich 0–π phase translations due to the interplay between interdot spin and electron correlations. Moreover, when the side dots are half-occupied, the nonlocal spin correlation between them, i.e., ferromagnetic or antiferromagnetic, coincides well with the supercurrent phase. We thus consider such a system to be a promising candidate for controlling the nonlocal magnetic configuration based on the Josephson effect.
- Subjects :
- Condensed Matter::Quantum Gases
Superconductivity
Josephson effect
Physics
Condensed matter physics
02 engineering and technology
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
law.invention
Pi Josephson junction
SQUID
Ferromagnetism
law
Quantum dot
Condensed Matter::Superconductivity
0103 physical sciences
Antiferromagnetism
Condensed Matter::Strongly Correlated Electrons
010306 general physics
0210 nano-technology
Spin-½
Subjects
Details
- ISSN :
- 13869477
- Volume :
- 81
- Database :
- OpenAIRE
- Journal :
- Physica E: Low-dimensional Systems and Nanostructures
- Accession number :
- edsair.doi...........14a250c479d39e91d20ddd4a943d8008