TY - JOUR
T1 - Odd triplet pairing in clean superconductor/ferromagnet heterostructures
AU - Halterman, Klaus
AU - Barsic, Paul H.
AU - Valls, Oriol T.
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2007/9/17
Y1 - 2007/9/17
N2 - We study triplet pairing correlations in clean ferromagnet (F)/superconductor (S) nanojunctions, via fully self-consistent solution of the Bogoliubova de Gennes equations. We consider FSF trilayers, with S being an s-wave superconductor, and an arbitrary angle α between the magnetizations of the two F layers. We find that contrary to some previous expectations, triplet correlations, odd in time, are induced in both the S and F layers in the clean limit. We investigate their behavior as a function of time, position, and α. The triplet amplitudes are largest at times on the order of the inverse Debye frequency, and at that time scale they are long-ranged in both S and F. The zero temperature condensation energy is found to be lowest when the magnetizations are antiparallel.
AB - We study triplet pairing correlations in clean ferromagnet (F)/superconductor (S) nanojunctions, via fully self-consistent solution of the Bogoliubova de Gennes equations. We consider FSF trilayers, with S being an s-wave superconductor, and an arbitrary angle α between the magnetizations of the two F layers. We find that contrary to some previous expectations, triplet correlations, odd in time, are induced in both the S and F layers in the clean limit. We investigate their behavior as a function of time, position, and α. The triplet amplitudes are largest at times on the order of the inverse Debye frequency, and at that time scale they are long-ranged in both S and F. The zero temperature condensation energy is found to be lowest when the magnetizations are antiparallel.
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U2 - 10.1103/PhysRevLett.99.127002
DO - 10.1103/PhysRevLett.99.127002
M3 - Article
C2 - 17930543
AN - SCOPUS:34548716350
SN - 0031-9007
VL - 99
JO - Physical review letters
JF - Physical review letters
IS - 12
M1 - 127002
ER -