Tuning of Magnetic Activity in Spin-Filter Josephson Junctions Towards Spin-Triplet Transport. / Caruso, Roberta; Massarotti, D.; Campagnano, G.; Pal, A. ; Ahmad, H. G.; Lucignano, P.; Eschrig, Matthias; Blamire, Mark G.; Tafuri, F.

In: Physical Review Letters, Vol. 122, No. 4, 047002, 01.02.2019, p. 1-6.

Research output: Contribution to journalLetterpeer-review

Published

Standard

Tuning of Magnetic Activity in Spin-Filter Josephson Junctions Towards Spin-Triplet Transport. / Caruso, Roberta; Massarotti, D.; Campagnano, G.; Pal, A. ; Ahmad, H. G.; Lucignano, P.; Eschrig, Matthias; Blamire, Mark G.; Tafuri, F.

In: Physical Review Letters, Vol. 122, No. 4, 047002, 01.02.2019, p. 1-6.

Research output: Contribution to journalLetterpeer-review

Harvard

Caruso, R, Massarotti, D, Campagnano, G, Pal, A, Ahmad, HG, Lucignano, P, Eschrig, M, Blamire, MG & Tafuri, F 2019, 'Tuning of Magnetic Activity in Spin-Filter Josephson Junctions Towards Spin-Triplet Transport', Physical Review Letters, vol. 122, no. 4, 047002, pp. 1-6. https://doi.org/10.1103/PhysRevLett.122.047002

APA

Caruso, R., Massarotti, D., Campagnano, G., Pal, A., Ahmad, H. G., Lucignano, P., Eschrig, M., Blamire, M. G., & Tafuri, F. (2019). Tuning of Magnetic Activity in Spin-Filter Josephson Junctions Towards Spin-Triplet Transport. Physical Review Letters, 122(4), 1-6. [047002]. https://doi.org/10.1103/PhysRevLett.122.047002

Vancouver

Caruso R, Massarotti D, Campagnano G, Pal A, Ahmad HG, Lucignano P et al. Tuning of Magnetic Activity in Spin-Filter Josephson Junctions Towards Spin-Triplet Transport. Physical Review Letters. 2019 Feb 1;122(4):1-6. 047002. https://doi.org/10.1103/PhysRevLett.122.047002

Author

Caruso, Roberta ; Massarotti, D. ; Campagnano, G. ; Pal, A. ; Ahmad, H. G. ; Lucignano, P. ; Eschrig, Matthias ; Blamire, Mark G. ; Tafuri, F. / Tuning of Magnetic Activity in Spin-Filter Josephson Junctions Towards Spin-Triplet Transport. In: Physical Review Letters. 2019 ; Vol. 122, No. 4. pp. 1-6.

BibTeX

@article{883da4c3ab4b4588b15ae5a082237063,
title = "Tuning of Magnetic Activity in Spin-Filter Josephson Junctions Towards Spin-Triplet Transport",
abstract = "The study of superconductor/ferromagnet interfaces has generated a great interest in the last decades, leading to the observation of long-range spin triplet supercurrent and 0 − π transitions in Josephson junctions where two superconductors are separated by an itinerant ferromagnet. Recently, spin-filter Josephson junctions with ferromagnetic barriers have shown unique transport properties, when compared to standard metallic ferromagnetic junctions, due to the intrinsically non-dissipative nature of the tunneling process. Here we present the first extensive characterization of spin polarized Josephson junctions down to 0.3 K, and the first evidence of an incomplete 0−π transition in highly spin polarized tunnel ferromagnetic junctions. Experimental data are consistent with a progressive enhancement of the magnetic activity with the increase of the barrier thickness, as neatly captured by the simplest theoretical approach including a non uniform exchange field. For very long junctions, unconventional magnetic activity of the barrier points to the presence of spin-triplet correlations.",
author = "Roberta Caruso and D. Massarotti and G. Campagnano and A. Pal and Ahmad, {H. G.} and P. Lucignano and Matthias Eschrig and Blamire, {Mark G.} and F. Tafuri",
year = "2019",
month = feb,
day = "1",
doi = "10.1103/PhysRevLett.122.047002",
language = "English",
volume = "122",
pages = "1--6",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "4",

}

RIS

TY - JOUR

T1 - Tuning of Magnetic Activity in Spin-Filter Josephson Junctions Towards Spin-Triplet Transport

AU - Caruso, Roberta

AU - Massarotti, D.

AU - Campagnano, G.

AU - Pal, A.

AU - Ahmad, H. G.

AU - Lucignano, P.

AU - Eschrig, Matthias

AU - Blamire, Mark G.

AU - Tafuri, F.

PY - 2019/2/1

Y1 - 2019/2/1

N2 - The study of superconductor/ferromagnet interfaces has generated a great interest in the last decades, leading to the observation of long-range spin triplet supercurrent and 0 − π transitions in Josephson junctions where two superconductors are separated by an itinerant ferromagnet. Recently, spin-filter Josephson junctions with ferromagnetic barriers have shown unique transport properties, when compared to standard metallic ferromagnetic junctions, due to the intrinsically non-dissipative nature of the tunneling process. Here we present the first extensive characterization of spin polarized Josephson junctions down to 0.3 K, and the first evidence of an incomplete 0−π transition in highly spin polarized tunnel ferromagnetic junctions. Experimental data are consistent with a progressive enhancement of the magnetic activity with the increase of the barrier thickness, as neatly captured by the simplest theoretical approach including a non uniform exchange field. For very long junctions, unconventional magnetic activity of the barrier points to the presence of spin-triplet correlations.

AB - The study of superconductor/ferromagnet interfaces has generated a great interest in the last decades, leading to the observation of long-range spin triplet supercurrent and 0 − π transitions in Josephson junctions where two superconductors are separated by an itinerant ferromagnet. Recently, spin-filter Josephson junctions with ferromagnetic barriers have shown unique transport properties, when compared to standard metallic ferromagnetic junctions, due to the intrinsically non-dissipative nature of the tunneling process. Here we present the first extensive characterization of spin polarized Josephson junctions down to 0.3 K, and the first evidence of an incomplete 0−π transition in highly spin polarized tunnel ferromagnetic junctions. Experimental data are consistent with a progressive enhancement of the magnetic activity with the increase of the barrier thickness, as neatly captured by the simplest theoretical approach including a non uniform exchange field. For very long junctions, unconventional magnetic activity of the barrier points to the presence of spin-triplet correlations.

U2 - 10.1103/PhysRevLett.122.047002

DO - 10.1103/PhysRevLett.122.047002

M3 - Letter

VL - 122

SP - 1

EP - 6

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 4

M1 - 047002

ER -