TY - JOUR
T1 - Evidence for crossed Andreev reflections in bilayers of (100) YBa2 Cu3 O7-δ and the itinerant ferromagnet SrRuO3
AU - Asulin, Itay
AU - Yuli, Ofer
AU - Koren, Gad
AU - Millo, Oded
PY - 2006
Y1 - 2006
N2 - Scanning tunneling spectroscopy measurements on thin epitaxial SrRuO3 (100) YBa2 Cu3 O7-δ ferromagnet/superconductor bilayers, reveal localized regions in which the superconductor order parameter penetrates the ferromagnet to more than 26 nm, an order of magnitude larger than the coherence length in the ferromagnetic layer. These regions consist of narrow (<10 nm) and long strips, separated by at least 200 nm, consistent with the known magnetic domain wall structure in SrRuO3. This behavior may be due to crossed Andreev reflections, taking place in the vicinity of the magnetic domain walls.
AB - Scanning tunneling spectroscopy measurements on thin epitaxial SrRuO3 (100) YBa2 Cu3 O7-δ ferromagnet/superconductor bilayers, reveal localized regions in which the superconductor order parameter penetrates the ferromagnet to more than 26 nm, an order of magnitude larger than the coherence length in the ferromagnetic layer. These regions consist of narrow (<10 nm) and long strips, separated by at least 200 nm, consistent with the known magnetic domain wall structure in SrRuO3. This behavior may be due to crossed Andreev reflections, taking place in the vicinity of the magnetic domain walls.
UR - http://www.scopus.com/inward/record.url?scp=33748168363&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.74.092501
DO - 10.1103/PhysRevB.74.092501
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AN - SCOPUS:33748168363
SN - 1098-0121
VL - 74
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 9
M1 - 092501
ER -