Critical current enhancement in a superconducting nanolayer proximitized to a weak-ferromagnetic film

Zhitlukhina, Elena; Poláčková, Magdaléna; Volkov, Serhii; Grančič, Branislav; Gregor, M.; Pleceník, T.; Belogolovskii, Mikhail; Seidel, P.; Plecenı́k, A.

doi:10.1007/s13204-022-02614-3

Appl Nanosci

2022

DOI: 10.1007/s13204-022-02614-3

|View full text |Cite

Critical current enhancement in a superconducting nanolayer proximitized to a weak-ferromagnetic film

Elena Zhitlukhina

Magdaléna Poláčková

Serhii Volkov

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Influence of Co Layer Thickness on the Superconducting Properties of Nanolayered Nb/Pt/Co Heterostructures: Implications for Ultrafast Sensors, Spin Valves, and Quantum Circuits

Paschoa,

Gonzalez Alfonso,

Pedruzzi Nascimento

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

The ability to control and manipulate the vortex state in type-II superconductors (SC) is important for applications of superconducting devices. Planar SC/ferromagnetic (FM) bilayers are alternative systems where this manipulation can be done. In this work, we studied the influence of thin FM Co layers on the SC Nb state in sputtered Nb(20 nm)/Pt(4 nm)/Co(t Co = 0−20 nm)/Pt(4 nm) nanohybrids. Oscillations in critical superconducting temperature T C and critical current density J C with changing of t Co values were observed, and their occurrences were confirmed by replicated samples. The T C oscillations do not decay in amplitude with the increase of FM thickness, differently to what has been observed in Nb/FM nanohybrids and Nb/Pt systems. These findings suggest that the Nb superconducting properties (T C and J C ) are strongly dependent on two main contributions: the proximity effect and the morphology of the FM Co layer that goes from small out-of-plane isolated magnetic domains nucleated in granular-like Co layer (t Co ≈ 1 nm) to a continuous Co layer regime in thicker Co layers. Using our results and some data from the literature on magnetism of Pt/Co, a high density (low density) of smaller (larger) magnetic domains formed for 2 nm ≤ t Co ≤ 8 nm (t Co > 8 nm) is assumed to be responsible for the vortex pinning centers at the Nb films; i.e., the size and density of Co magnetic domain structures determine the pinning centers that influence the SC properties of Nb(20 nm)/Pt(4 nm)/Co nanohybrids.

show abstract

Influence of Co Layer Thickness on the Superconducting Properties of Nanolayered Nb/Pt/Co Heterostructures: Implications for Ultrafast Sensors, Spin Valves, and Quantum Circuits

Paschoa,

Gonzalez Alfonso,

Pedruzzi Nascimento

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Critical current enhancement in a superconducting nanolayer proximitized to a weak-ferromagnetic film

Cited by 1 publication

References 20 publications

Influence of Co Layer Thickness on the Superconducting Properties of Nanolayered Nb/Pt/Co Heterostructures: Implications for Ultrafast Sensors, Spin Valves, and Quantum Circuits

Influence of Co Layer Thickness on the Superconducting Properties of Nanolayered Nb/Pt/Co Heterostructures: Implications for Ultrafast Sensors, Spin Valves, and Quantum Circuits

Contact Info

Product

Resources

About