title: Depth-resolved profile of the magnetic field beneath the surface of a superconductor with a few nm resolution
abstract: The variation of a magnetic field as a function of depth beneath the surface of an YBa(2)Cu(3)O(7-delta) thin film in the Meissner state has been measured using low energy muons. The depth of implantation was varied from 20-150 nm by tuning the energy of the implanted muons from 3-30 keV. These are direct measurements of the penetration of a magnetic field beneath a superconducting surface which illustrate the power of low energy muons for near surface studies in superconductivity and magnetism.
authors.affiliation: School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom.
authors.initials: TJ
authors.lastname: Jackson
authors.initials: TM
authors.lastname: Riseman
authors.initials: EM
authors.lastname: Forgan
authors.initials: H
authors.lastname: Gluckler
authors.initials: T
authors.lastname: Prokscha
authors.initials: E
authors.lastname: Morenzoni
authors.initials: M
authors.lastname: Pleines
authors.initials: C
authors.lastname: Niedermayer
authors.initials: G
authors.lastname: Schatz
authors.initials: H
authors.lastname: Luetkens
authors.initials: J
authors.lastname: Litterst