TY - JOUR
T1 - Evidence for anisotropic triplet superconductor order parameter in half-metallic ferromagnetic La 0.7Ca 0.3Mn 3O proximity coupled to superconducting Pr 1.85Ce 0.15CuO 4
AU - Kalcheim, Y.
AU - Millo, O.
AU - Egilmez, M.
AU - Robinson, J. W.A.
AU - Blamire, M. G.
PY - 2012/3/7
Y1 - 2012/3/7
N2 - Scanning tunneling spectroscopy measurements performed on La 0.7Ca 0.3Mn 3O (LCMO) films epitaxially grown on Pr 1.85Ce 0.15CuO 4 (PCCO) reveal localized penetration of superconductivity into the LCMO up to distances much larger than is possible for Cooper pairs in a singlet spin state to exist. This long-range proximity effect is manifested in the tunneling spectra as gaps and, less abundantly, as zero-bias conductance peaks (ZBCPs). Since ZBCPs were not found on the bare PCCO films, their appearance is attributed to an anisotropic (p wave or d wave) triplet-pairing superconductor order parameter induced in the LCMO.
AB - Scanning tunneling spectroscopy measurements performed on La 0.7Ca 0.3Mn 3O (LCMO) films epitaxially grown on Pr 1.85Ce 0.15CuO 4 (PCCO) reveal localized penetration of superconductivity into the LCMO up to distances much larger than is possible for Cooper pairs in a singlet spin state to exist. This long-range proximity effect is manifested in the tunneling spectra as gaps and, less abundantly, as zero-bias conductance peaks (ZBCPs). Since ZBCPs were not found on the bare PCCO films, their appearance is attributed to an anisotropic (p wave or d wave) triplet-pairing superconductor order parameter induced in the LCMO.
UR - http://www.scopus.com/inward/record.url?scp=84858042965&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.85.104504
DO - 10.1103/PhysRevB.85.104504
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:84858042965
SN - 1098-0121
VL - 85
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 10
M1 - 104504
ER -