---
res:
  bibo_abstract:
  - We investigate the isotope effect on the London penetration depth of a superconductor
    which measures n S/m*, the ratio of superfluid density to effective mass. We use
    a simplified model of electrons weakly coupled to a single phonon frequency ω
    E, but assume that the energy gap Δ does not have any isotope effect. Nevertheless,
    we find an isotope effect for n S/m* which is significant if Δ is sufficiently
    large that it becomes comparable to ω E, a regime of interest to high-T c cuprate
    superconductors and possibly other families of unconventional superconductors
    with relatively high T c. Our model is too simple to describe the cuprates and
    it gives the wrong sign of the isotope effect when compared with experiment, but
    it is a proof of principle that the isotope effect exists for n S/m* in materials
    where the pairing gap and T c are not of phonon origin and have no isotope effect.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Maksym
      foaf_name: Maksym Serbyn
      foaf_surname: Serbyn
      foaf_workInfoHomepage: http://www.librecat.org/personId=47809E7E-F248-11E8-B48F-1D18A9856A87
    orcid: 0000-0002-2399-5827
  - foaf_Person:
      foaf_givenName: Patrick
      foaf_name: Lee, Patrick
      foaf_surname: Lee
  bibo_doi: 10.1103/PhysRevB.83.024506
  bibo_issue: '2'
  bibo_volume: 83
  dct_date: 2011^xs_gYear
  dct_publisher: American Physical Society@
  dct_title: Isotope effect on the superfluid density in conventional and high-temperature
    superconductors@
...