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Physical Review Letters, volume 115, issue 6, publication number 067201

Large Superconducting Spin Valve Effect and Ultrasmall Exchange Splitting in Epitaxial Rare-Earth-Niobium Trilayers.

Yuanzhou Gu ¹

Gábor B Halász ²

Gábor B. Halász ²

J. W. A. Robinson ¹

Jason D. Robinson ¹

M. G. Blamire ¹

M. Blamire ¹

Hide authors affiliations Show authors affiliations: 2 affiliations

Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom |

Theoretical Physics, Oxford University, 1 Keble Road, Oxford OX1 3NP, United Kingdom |

Publication type: Journal Article

Publication date: 2015-08-03

American Physical Society (APS)

Journal: Physical Review Letters

Quartile SCImago

Quartile WOS

Impact factor: 8.6

ISSN: 00319007, 10797114

DOI: 10.1103/PhysRevLett.115.067201

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General Physics and Astronomy

Abstract

Epitaxial Ho/Nb/Ho and Dy/Nb/Dy superconducting spin valves show a reversible change in the zero-field critical temperature (ΔT(c0)) of ∼400 mK and an infinite magnetoresistance on changing the relative magnetization of the Ho or Dy layers. Unlike transition-metal superconducting spin valves, which show much smaller ΔT(c0) values, our results can be quantitatively modeled. However, the fits require an extraordinarily low induced exchange splitting which is dramatically lower than known values for rare-earth Fermi-level electrons, implying that new models for the magnetic proximity effect may be required.

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Citations by publishers

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American Physical Society (APS)	American Physical Society (APS), 16, 32% American Physical Society (APS) 16 publications, 32%
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Taylor & Francis	Taylor & Francis, 2, 4% Taylor & Francis 2 publications, 4%
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Treatise	Treatise, 1, 2% Treatise 1 publication, 2%
Akademizdatcenter Nauka	Akademizdatcenter Nauka, 1, 2% Akademizdatcenter Nauka 1 publication, 2%
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Gu Y. et al. Large Superconducting Spin Valve Effect and Ultrasmall Exchange Splitting in Epitaxial Rare-Earth-Niobium Trilayers. // Physical Review Letters. 2015. Vol. 115. No. 6. 067201

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Gu Y., Halász G. B., Halász G. B., Robinson J., Robinson J. D., Blamire M. G., Blamire M. Large Superconducting Spin Valve Effect and Ultrasmall Exchange Splitting in Epitaxial Rare-Earth-Niobium Trilayers. // Physical Review Letters. 2015. Vol. 115. No. 6. 067201

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RIS Copy

TY - JOUR

DO - 10.1103/PhysRevLett.115.067201

UR - https://doi.org/10.1103/PhysRevLett.115.067201

TI - Large Superconducting Spin Valve Effect and Ultrasmall Exchange Splitting in Epitaxial Rare-Earth-Niobium Trilayers.

T2 - Physical Review Letters

AU - Gu, Yuanzhou

AU - Halász, Gábor B

AU - Robinson, J. W. A.

AU - Blamire, M. G.

AU - Halász, Gábor B.

AU - Robinson, Jason D.

AU - Blamire, M.

PY - 2015

DA - 2015/08/03

PB - American Physical Society (APS)

IS - 6

VL - 115

SN - 0031-9007

SN - 1079-7114

ER -

BibTex

Cite this

BibTex Copy

@article{2015_Gu,

author = {Yuanzhou Gu and Gábor B Halász and J. W. A. Robinson and M. G. Blamire and Gábor B. Halász and Jason D. Robinson and M. Blamire},

title = {Large Superconducting Spin Valve Effect and Ultrasmall Exchange Splitting in Epitaxial Rare-Earth-Niobium Trilayers.},

journal = {Physical Review Letters},

year = {2015},

volume = {115},

publisher = {American Physical Society (APS)},

month = {aug},

url = {https://doi.org/10.1103/PhysRevLett.115.067201},

number = {6},

doi = {10.1103/PhysRevLett.115.067201}

}

Found error?

Publisher

American Physical Society (APS)

Journal

Physical Review Letters

Quartile SCImago

Quartile WOS

Impact factor

8.6

ISSN

00319007 (Print)
10797114 (Electronic)

Profiles

Blamire, Mark G