Effect of the variation of the exchange energy on the superconducting critical temperature of S/F/S trilayers

V. N. Kushnir; S. L. Prischepa; J. Aarts; C. Bell; C. Cirillo; C. Attanasio; Chris Bell

doi:10.1140/epjb/e2011-20027-0

Effect of the variation of the exchange energy on the superconducting critical temperature of S/F/S trilayers

V. N. Kushnir^*, S. L. Prischepa, J. Aarts, C. Bell, C. Cirillo, C. Attanasio, Chris Bell

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

10 Citations (Scopus)

Abstract

The effect of the exchange energy variation in weakly ferromagnetic alloys on the superconducting resistive transition of superconductor/ferromagnet/superconductor (S/F/S) trilayers is studied. Critical temperature, T-c, and resistive transitions versus the F-layer thickness, d(F), have been analyzed in Nb/Cu0.41Ni0.59/Nb and Nb/Pd0.81Ni0.19/Nb trilayers. We show that T-c(d(F)) dependence is sensitive to magnetic inhomogeneities in the F-layer for values of d(F) corresponding to thickness range where the pi-superconducting state is established.

Original language	English
Pages (from-to)	445-449
Number of pages	5
Journal	European Physical Journal B: Condensed Matter
Volume	80
Issue number	4
DOIs	https://doi.org/10.1140/epjb/e2011-20027-0
Publication status	Published - Apr 2011

Keywords

TRANSITION-TEMPERATURE
RESISTIVE TRANSITIONS
CRITICAL FIELDS
PI-JUNCTION
NI ALLOYS
FERROMAGNET
PROXIMITY
MULTILAYERS
QUANTUM
HETEROSTRUCTURES

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@article{c92b4bce6fe34af8ae59ed50f5abaa09,

title = "Effect of the variation of the exchange energy on the superconducting critical temperature of S/F/S trilayers",

abstract = "The effect of the exchange energy variation in weakly ferromagnetic alloys on the superconducting resistive transition of superconductor/ferromagnet/superconductor (S/F/S) trilayers is studied. Critical temperature, T-c, and resistive transitions versus the F-layer thickness, d(F), have been analyzed in Nb/Cu0.41Ni0.59/Nb and Nb/Pd0.81Ni0.19/Nb trilayers. We show that T-c(d(F)) dependence is sensitive to magnetic inhomogeneities in the F-layer for values of d(F) corresponding to thickness range where the pi-superconducting state is established.",

keywords = "TRANSITION-TEMPERATURE, RESISTIVE TRANSITIONS, CRITICAL FIELDS, PI-JUNCTION, NI ALLOYS, FERROMAGNET, PROXIMITY, MULTILAYERS, QUANTUM, HETEROSTRUCTURES",

author = "Kushnir, {V. N.} and Prischepa, {S. L.} and J. Aarts and C. Bell and C. Cirillo and C. Attanasio and Chris Bell",

year = "2011",

month = apr,

doi = "10.1140/epjb/e2011-20027-0",

language = "English",

volume = "80",

pages = "445--449",

journal = "European Physical Journal B: Condensed Matter",

issn = "1434-6028",

publisher = "Springer, New York, NY",

number = "4",

}

TY - JOUR

T1 - Effect of the variation of the exchange energy on the superconducting critical temperature of S/F/S trilayers

AU - Kushnir, V. N.

AU - Prischepa, S. L.

AU - Aarts, J.

AU - Bell, C.

AU - Cirillo, C.

AU - Attanasio, C.

AU - Bell, Chris

PY - 2011/4

Y1 - 2011/4

N2 - The effect of the exchange energy variation in weakly ferromagnetic alloys on the superconducting resistive transition of superconductor/ferromagnet/superconductor (S/F/S) trilayers is studied. Critical temperature, T-c, and resistive transitions versus the F-layer thickness, d(F), have been analyzed in Nb/Cu0.41Ni0.59/Nb and Nb/Pd0.81Ni0.19/Nb trilayers. We show that T-c(d(F)) dependence is sensitive to magnetic inhomogeneities in the F-layer for values of d(F) corresponding to thickness range where the pi-superconducting state is established.

AB - The effect of the exchange energy variation in weakly ferromagnetic alloys on the superconducting resistive transition of superconductor/ferromagnet/superconductor (S/F/S) trilayers is studied. Critical temperature, T-c, and resistive transitions versus the F-layer thickness, d(F), have been analyzed in Nb/Cu0.41Ni0.59/Nb and Nb/Pd0.81Ni0.19/Nb trilayers. We show that T-c(d(F)) dependence is sensitive to magnetic inhomogeneities in the F-layer for values of d(F) corresponding to thickness range where the pi-superconducting state is established.

KW - TRANSITION-TEMPERATURE

KW - RESISTIVE TRANSITIONS

KW - CRITICAL FIELDS

KW - PI-JUNCTION

KW - NI ALLOYS

KW - FERROMAGNET

KW - PROXIMITY

KW - MULTILAYERS

KW - QUANTUM

KW - HETEROSTRUCTURES

U2 - 10.1140/epjb/e2011-20027-0

DO - 10.1140/epjb/e2011-20027-0

M3 - Article (Academic Journal)

SN - 1434-6028

VL - 80

SP - 445

EP - 449

JO - European Physical Journal B: Condensed Matter

JF - European Physical Journal B: Condensed Matter

IS - 4

ER -

Effect of the variation of the exchange energy on the superconducting critical temperature of S/F/S trilayers

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Keywords

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