Format

Send to

Choose Destination
Phys Rev Lett. 2005 Jan 28;94(3):037006. Epub 2005 Jan 26.

Coexistence of ferromagnetism and superconductivity in Ni/Bi bilayers.

Author information

1
Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. dingus@mit.edu

Abstract

In spite of a lack of superconductivity in bulk crystalline Bi, thin film Bi deposited on thin Ni underlayers are strong-coupled superconductors below approximately 4 K. We unambiguously demonstrate that by tuning the Ni thickness the competition between ferromagnetism and superconductivity in the Ni/Bi can be tailored. For a narrow range of Ni thicknesses, the coexistence of both a superconducting energy gap and conduction electron spin polarization are visible within the Ni side of the Ni/Bi bilayers, independent of any particular theoretical model. We believe that this represents one of the clearest observations of superconductivity and ferromagnetism coexisting.

Supplemental Content

Full text links

Icon for American Physical Society
Loading ...
Support Center