Critical current oscillations versus pureness of superconductor-ferromagnet nanoscopic multilayers

S. E. Shafranjuk; J. Ketterson

Critical current oscillations versus pureness of superconductor-ferromagnet nanoscopic multilayers

S. E. Shafranjuk^*, J. Ketterson

^*Corresponding author for this work

Physics and Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The influence of elastic electron scattering on nonmagnetic impurities in S/F multilayers to the oscillations of superconducting critical current J _c and critical temperature T_c versus the thickness of ferromagnetic layer d_F is studied. Using the quasiclassical Green function approach, we compute the electron excitation spectrum in the electrodes of S/F multilayer for an arbitrary pureness τ_iΔ (except the limit τ_iε_F ≤, ℏ, ε_F being the Fermi energy; τ_i is the scattering time of electrons on nonmagnetic impurities). Using the same assumptions, we also derive expressions for J_c and T_c. The obtained results indicate that both the J_c(d_F) and T_c (d_F) dependencies are strongly affected by the electron elastic scattering in the electrodes.

Original language	English (US)
Title of host publication	2003 Nanotechnology Conference and Trade Show - Nanotech 2003
Editors	M. Laudon, B. Romanowicz
Pages	174-177
Number of pages	4
State	Published - 2003
Event	2003 Nanotechnology Conference and Trade Show - Nanotech 2003 - San Francisco, CA, United States Duration: Feb 23 2003 → Feb 27 2003

Publication series

Name	2003 Nanotechnology Conference and Trade Show - Nanotech 2003
Volume	2

Other

Other	2003 Nanotechnology Conference and Trade Show - Nanotech 2003
Country/Territory	United States
City	San Francisco, CA
Period	2/23/03 → 2/27/03

Keywords

Ferromagnet-superconductor multilayers
Reentrant behavior

ASJC Scopus subject areas

General Engineering

Cite this

@inproceedings{8050308e02ac41d9b8e6f6260cd6dd35,

title = "Critical current oscillations versus pureness of superconductor-ferromagnet nanoscopic multilayers",

abstract = "The influence of elastic electron scattering on nonmagnetic impurities in S/F multilayers to the oscillations of superconducting critical current J c and critical temperature Tc versus the thickness of ferromagnetic layer dF is studied. Using the quasiclassical Green function approach, we compute the electron excitation spectrum in the electrodes of S/F multilayer for an arbitrary pureness τiΔ (except the limit τiεF ≤, ℏ, εF being the Fermi energy; τi is the scattering time of electrons on nonmagnetic impurities). Using the same assumptions, we also derive expressions for Jc and Tc. The obtained results indicate that both the Jc(dF) and Tc (dF) dependencies are strongly affected by the electron elastic scattering in the electrodes.",

keywords = "Ferromagnet-superconductor multilayers, Reentrant behavior",

author = "Shafranjuk, {S. E.} and J. Ketterson",

year = "2003",

language = "English (US)",

isbn = "0972842209",

series = "2003 Nanotechnology Conference and Trade Show - Nanotech 2003",

pages = "174--177",

editor = "M. Laudon and B. Romanowicz",

booktitle = "2003 Nanotechnology Conference and Trade Show - Nanotech 2003",

note = "2003 Nanotechnology Conference and Trade Show - Nanotech 2003 ; Conference date: 23-02-2003 Through 27-02-2003",

}

Shafranjuk, SE & Ketterson, J 2003, Critical current oscillations versus pureness of superconductor-ferromagnet nanoscopic multilayers. in M Laudon & B Romanowicz (eds), 2003 Nanotechnology Conference and Trade Show - Nanotech 2003. 2003 Nanotechnology Conference and Trade Show - Nanotech 2003, vol. 2, pp. 174-177, 2003 Nanotechnology Conference and Trade Show - Nanotech 2003, San Francisco, CA, United States, 2/23/03.

Critical current oscillations versus pureness of superconductor-ferromagnet nanoscopic multilayers. / Shafranjuk, S. E.; Ketterson, J.
2003 Nanotechnology Conference and Trade Show - Nanotech 2003. ed. / M. Laudon; B. Romanowicz. 2003. p. 174-177 (2003 Nanotechnology Conference and Trade Show - Nanotech 2003; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Critical current oscillations versus pureness of superconductor-ferromagnet nanoscopic multilayers

AU - Shafranjuk, S. E.

AU - Ketterson, J.

PY - 2003

Y1 - 2003

N2 - The influence of elastic electron scattering on nonmagnetic impurities in S/F multilayers to the oscillations of superconducting critical current J c and critical temperature Tc versus the thickness of ferromagnetic layer dF is studied. Using the quasiclassical Green function approach, we compute the electron excitation spectrum in the electrodes of S/F multilayer for an arbitrary pureness τiΔ (except the limit τiεF ≤, ℏ, εF being the Fermi energy; τi is the scattering time of electrons on nonmagnetic impurities). Using the same assumptions, we also derive expressions for Jc and Tc. The obtained results indicate that both the Jc(dF) and Tc (dF) dependencies are strongly affected by the electron elastic scattering in the electrodes.

AB - The influence of elastic electron scattering on nonmagnetic impurities in S/F multilayers to the oscillations of superconducting critical current J c and critical temperature Tc versus the thickness of ferromagnetic layer dF is studied. Using the quasiclassical Green function approach, we compute the electron excitation spectrum in the electrodes of S/F multilayer for an arbitrary pureness τiΔ (except the limit τiεF ≤, ℏ, εF being the Fermi energy; τi is the scattering time of electrons on nonmagnetic impurities). Using the same assumptions, we also derive expressions for Jc and Tc. The obtained results indicate that both the Jc(dF) and Tc (dF) dependencies are strongly affected by the electron elastic scattering in the electrodes.

KW - Ferromagnet-superconductor multilayers

KW - Reentrant behavior

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M3 - Conference contribution

AN - SCOPUS:6344291386

SN - 0972842209

T3 - 2003 Nanotechnology Conference and Trade Show - Nanotech 2003

SP - 174

EP - 177

BT - 2003 Nanotechnology Conference and Trade Show - Nanotech 2003

A2 - Laudon, M.

A2 - Romanowicz, B.

T2 - 2003 Nanotechnology Conference and Trade Show - Nanotech 2003

Y2 - 23 February 2003 through 27 February 2003

ER -

Critical current oscillations versus pureness of superconductor-ferromagnet nanoscopic multilayers

Abstract

Publication series

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Keywords

ASJC Scopus subject areas

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