Bistable state in superconductor/ferromagnet heterostructures

Abstract

A novel state is predicted for a S/F heterostructure. It is shown that the equilibrium F/S bilayer can be in a bistable state: one state is ground and the other is metastable. One of these states is always normal and the other is superconducting. One can switch between these states by an external control parameter, for example, by an applied magnetic field. This phenomenon can manifest itself through the hysteresis behavior upon varying the applied magnetic field or, even, temperature. It can also lead to transition of the heterostructure into the superconducting state upon increase of the temperature.

arXiv comment5 pages, 4 figures

References in corpus (18)

• Proximity effects in superconductor-ferromagnet heterostructures
• Odd Triplet Superconductivity and Related Phenomena in Superconductor-Ferromagnet Structures
• Coupling of two superconductors through a ferromagnet : evidence for a pi-junction
• Enhancement of the Josephson current by an exchange field in superconductor-ferromagnet structures
• Singlet-triplet conversion and the long-range proximity effect in superconductor-ferromagnet structures with generic spin dependent fields
• Periodic alternating $0,\pi$-junction structures as realization of $\varphi$-Josephson junctions
• Experimental evidence of a ϕ Josephson junction
• Re-entrant superconductivity in Nb/Cu(1-x)Ni(x) bilayers
• Josephson junction with magnetic-field tunable ground state
• Superconductors as ideal spin sources for spintronics
• Vanishing Meissner effect as a hallmark of in-plane FFLO instability in superconductor - ferromagnet layered systems
• Reentrant superconductivity in superconductor/ferromagnetic-alloy bilayers
• Interplay of paramagnetic, orbital and impurity effects on the phase transition of a normal metal to superconducting state
• Critical voltage of a mesoscopic superconductor
• Bi-stability in voltage-biased NISIN structures
• Long-range proximity effect for opposite-spin pairs in S/F heterostructures under non-equilibrium quasiparticle distribution
• Inhomogeneous state in non-equilibrium superconductor/normal metal tunnel structures: a LOFF-like phase for non-magnetic systems
• Enhancing of the in-plane FFLO-state critical temperature in heterostructures by the orbital effect of the magnetic field

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• Gate-Tunable Superconducting Spin Valve in a van der Waals Ferromagnet/Superconductor/Ferromagnet Trilayer