TY - JOUR
T1 - Proximity effect in superconducting-ferromagnetic granular structures
AU - Greener, Hadar
AU - Shelukhin, Victor
AU - Karpovski, Michael
AU - Goldstein, Moshe
AU - Palevski, Alexander
N1 - Publisher Copyright:
© 2018 American Physical Society.
PY - 2018/1/23
Y1 - 2018/1/23
N2 - We examined the proximity effect in granular films made of Pb, a superconductor, and Ni, a ferromagnet, with various compositions. Slow decay of the critical temperature as a function of the relative volume concentration of Ni per sample was demonstrated by our measurements, followed by a saturation of Tc. Using an approximate theoretical description of our granular system in terms of a layered one, we show that our data can only be reasonably fitted by a trilayer model. This indicates the importance of the interplay between different ferromagnetic grains, which should lead to triplet Cooper pairing.
AB - We examined the proximity effect in granular films made of Pb, a superconductor, and Ni, a ferromagnet, with various compositions. Slow decay of the critical temperature as a function of the relative volume concentration of Ni per sample was demonstrated by our measurements, followed by a saturation of Tc. Using an approximate theoretical description of our granular system in terms of a layered one, we show that our data can only be reasonably fitted by a trilayer model. This indicates the importance of the interplay between different ferromagnetic grains, which should lead to triplet Cooper pairing.
UR - http://www.scopus.com/inward/record.url?scp=85040952615&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.97.014520
DO - 10.1103/PhysRevB.97.014520
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AN - SCOPUS:85040952615
SN - 2469-9950
VL - 97
JO - Physical Review B
JF - Physical Review B
IS - 1
M1 - 014520
ER -