Ruslan Prozorov 2008 Supercond. Sci. Technol. 21 082003 doi:10.1088/0953-2048/21/8/082003
Ruslan Prozorov
Show affiliationsThe superconducting gap and the superfluid density are calculated for the extended d-wave gap suggested by angle-resolved photoemission spectroscopy (ARPES) measurements in electron-doped superconductors as well as underdoped Bi2Sr2CaCu2O8+x (BSCCO2212). It is shown that experimental superfluid density may agree with such a gap, but full-temperature range analysis is required. With additional information on the Δ(0)/Tc ratio, this opens up the possibility of deciding whether a non-monotonic or higher harmonic spectral gap, as seen by ARPES, is a superposition of a regular d-wave gap and an unrelated pseudogap that does not contribute to superconductivity or that the extended gap is a real superconducting gap. This paper is also an erratum to earlier calculations published in Prozorov and Giannetta (2006 Supercond. Sci. Technol. 19 R41–67) where the wrong sign was used for the non-monotonic gap, altering the conclusions rather drastically.
Issue 8 (August 2008)
Received 19 March 2008, in final form 30 May 2008
Published 16 June 2008
Ruslan Prozorov 2008 Supercond. Sci. Technol. 21 082003
F Bodoky et al 2009 J. Phys.: Condens. Matter 21 395602
Jennifer L. Hoffman et al. 1998 The Astronomical Journal 115 1576
Jill M. Meyer et al. 2002 The Astronomical Journal 123 1639
Brett McInnes JHEP09(2003)009
Robert R Caldwell and Marc Kamionkowski JCAP09(2004)009
Y. Onose et al 2007 EPL 79 17006
Robert Parviainen 2007 J. Phys. A: Math. Theor. 40 9253
A Kolmakov et al 2006 Nanotechnology 17 4014
Y. Onose et al 2007 EPL 80 37005