Work

Supercurrent Switch in Graphene π Junctions

Year: 2008

Type: article

Abstract: We study the supercurrent in a superconductor/ferromagnet/superconductor graphene junction. In contrast to its metallic counterpart, the oscillating critical current in our setup decays only weakly upon increasing the exchange field and junction width. We find an unusually large residual value of the supercurrent at the oscillatory cusps due to a strong deviation from a sinusoidal current-phase relationship. Our findings suggest a very efficient device for dissipationless supercurrent switching.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.100.187004

Authors: Jacob Linder, Takehito Yokoyama, Daniel Huertas-Hernando, Asle Sudbø

Institutions: Norwegian University of Science and Technology, Nagoya University

Language: English

Topic: Physics of Superconductivity and Magnetism

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W1485857148

FWCI: 9.777

Cites: 28

Cited by: 85

Related to: 10