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Spin-polarized transport in F/S nanojunctions

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Spin-polarized transport in F/S nanojunctions. / Taddei, F ; Sanvito, S ; Lambert, C. J. .
In: Journal of Low Temperature Physics, Vol. 124, No. 1-2, 07.2001, p. 305-320.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Taddei, F, Sanvito, S & Lambert, CJ 2001, 'Spin-polarized transport in F/S nanojunctions', Journal of Low Temperature Physics, vol. 124, no. 1-2, pp. 305-320. https://doi.org/10.1023/A:1017546406402

APA

Taddei, F., Sanvito, S., & Lambert, C. J. (2001). Spin-polarized transport in F/S nanojunctions. Journal of Low Temperature Physics, 124(1-2), 305-320. https://doi.org/10.1023/A:1017546406402

Vancouver

Taddei F, Sanvito S, Lambert CJ. Spin-polarized transport in F/S nanojunctions. Journal of Low Temperature Physics. 2001 Jul;124(1-2):305-320. doi: 10.1023/A:1017546406402

Author

Taddei, F ; Sanvito, S ; Lambert, C. J. . / Spin-polarized transport in F/S nanojunctions. In: Journal of Low Temperature Physics. 2001 ; Vol. 124, No. 1-2. pp. 305-320.

Bibtex

@article{00a437550f1b481aa90ec7000d415f18,
title = "Spin-polarized transport in F/S nanojunctions",
abstract = "We study spin-dependent electronic transport across ferromagnet/superconductor ballistic junctions modeled using tight-binding Hamiltonians with s, p and d orbitals and material-specific parameters. The first result of this paper is that, by accurately modeling the band structure of the bulk materials, one can reproduce the measured differential conductance of Cu/Pb nanocontacts(1,2). In contrast the differential conductance of Co/Pb contacts can only be reproduced if an enhanced magnetic moment is present at the interface. The second result concerns the reliability of a method proposed in Refs. 1-3 for determining the degree of polarization of a ferromagnet. By fitting the material-specific differential conductance curves to curves calculated using a single-band model we show that this method does not yield reliable values for polarization and spin-dependent transmission.",
author = "F Taddei and S Sanvito and Lambert, {C. J.}",
year = "2001",
month = jul,
doi = "10.1023/A:1017546406402",
language = "English",
volume = "124",
pages = "305--320",
journal = "Journal of Low Temperature Physics",
issn = "0022-2291",
publisher = "SPRINGER/PLENUM PUBLISHERS",
number = "1-2",

}

RIS

TY - JOUR

T1 - Spin-polarized transport in F/S nanojunctions

AU - Taddei, F

AU - Sanvito, S

AU - Lambert, C. J.

PY - 2001/7

Y1 - 2001/7

N2 - We study spin-dependent electronic transport across ferromagnet/superconductor ballistic junctions modeled using tight-binding Hamiltonians with s, p and d orbitals and material-specific parameters. The first result of this paper is that, by accurately modeling the band structure of the bulk materials, one can reproduce the measured differential conductance of Cu/Pb nanocontacts(1,2). In contrast the differential conductance of Co/Pb contacts can only be reproduced if an enhanced magnetic moment is present at the interface. The second result concerns the reliability of a method proposed in Refs. 1-3 for determining the degree of polarization of a ferromagnet. By fitting the material-specific differential conductance curves to curves calculated using a single-band model we show that this method does not yield reliable values for polarization and spin-dependent transmission.

AB - We study spin-dependent electronic transport across ferromagnet/superconductor ballistic junctions modeled using tight-binding Hamiltonians with s, p and d orbitals and material-specific parameters. The first result of this paper is that, by accurately modeling the band structure of the bulk materials, one can reproduce the measured differential conductance of Cu/Pb nanocontacts(1,2). In contrast the differential conductance of Co/Pb contacts can only be reproduced if an enhanced magnetic moment is present at the interface. The second result concerns the reliability of a method proposed in Refs. 1-3 for determining the degree of polarization of a ferromagnet. By fitting the material-specific differential conductance curves to curves calculated using a single-band model we show that this method does not yield reliable values for polarization and spin-dependent transmission.

U2 - 10.1023/A:1017546406402

DO - 10.1023/A:1017546406402

M3 - Journal article

VL - 124

SP - 305

EP - 320

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

SN - 0022-2291

IS - 1-2

ER -