Properties of Ni/Nb magnetic/superconducting multilayers

Journal Article · Thu May 01 04:00:00 EDT 1997 · Journal of Vacuum Science and Technology, A

DOI:https://doi.org/10.1116/1.580868· OSTI ID:509016

Mattson, J E; Osgood, III, R M; Potter, C D; Sowers, C H; Bader, S D ^[1]

---

1. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

We examine structural, magnetic, and superconducting properties of magnetic/superconducting Ni/Nb multilayers. The Ni(Nb) films are textured {l_brace}111{r_brace}({l_brace}110{r_brace}) and have smooth interfaces. The average moment of the Ni atoms in the structure drops by 80{percent} from that of bulk Ni for 19 {Angstrom} thick Ni layers in proximity to 140 {Angstrom} thick Nb layers, and goes to zero for smaller Ni thicknesses. The Nb layer is not superconducting for thicknesses {lt}100 {Angstrom} in the presence of a 19 {Angstrom} thick ferromagnetic Ni layer. The behavior of the superconducting critical temperature as a function of the superconducting layer thickness was fitted and an interfacial scattering parameter and scattering time for the paramagnetic Ni regime determined.

• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 509016
• Report Number(s): CONF-961002--
• Journal Information: Journal of Vacuum Science and Technology, A, Journal Name: Journal of Vacuum Science and Technology, A Journal Issue: 3 Vol. 15; ISSN 0734-2101; ISSN JVTAD6
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COUPLING
FERROMAGNETIC MATERIALS
LAYERS
MAGNETIC MOMENTS
NICKEL
NIOBIUM
SCATTERING
SUPERCONDUCTIVITY
TEXTURE