Measurement of the spatial extent of inverse proximity in a Py/Nb/Py superconducting trilayer using low-energy muon-spin rotation

被引：12

作者：

Flokstra, M. G. ^{[1
]}

Ray, S. J. ^{[1
]}

Lister, S. J. ^{[1
]}

Aarts, J. ^{[2
]}

Luetkens, H. ^{[3
]}

Prokscha, T. ^{[3
]}

Suter, A. ^{[3
]}

Morenzoni, E. ^{[3
]}

Lee, S. L. ^{[1
]}

机构：

[1] Univ St Andrews, SUPA, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland

[2] Leiden Univ, Leiden Inst Phys, NL-2333 CA Leiden, Netherlands

[3] Paul Scherrer Inst, Lab Myonspinspektroskopie, CH-5232 Villigen, Switzerland

来源：

PHYSICAL REVIEW B | 2014年 / 89卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

FERROMAGNET;

D O I：

10.1103/PhysRevB.89.054510

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Muon-spin rotation has been used to observe directly the spatial variation of the magnetic flux density near the ferromagnetic-superconducting interface in a permalloy-niobium trilayer. Above the superconducting transition temperature T-c the profile of the induced magnetic flux density within the niobium layer has been determined. Below T-c there is a significant reduction of the induced flux density, predominantly near the ferromagnetic-superconducting interfaces. We are uniquely able to determine the magnitude and spatial variation of this reduction in induced magnetization due to the presence of the Cooper pairs, yielding the magnitude and length scale associated with this phenomenon. Both are inconsistent with a simple Meissner screening and indicate the existence of another mechanism, the influence of which is localized within the vicinity of the ferromagnetic interface.

引用

页数：5

共 4 条

[1] Magnetism, superconductivity, and coupling in cuprate heterostructures probed by low-energy muon-spin rotation
Wojek, B. M.
Morenzoni, E.
Eshchenko, D. G.
Suter, A.
Prokscha, T.
Keller, H.
Koller, E.
Fischer, O.
Malik, V. K.
Bernhard, C.
Doebeli, M.
PHYSICAL REVIEW B, 2012, 85 (02)
[2] Direct measurement of the electronic spin diffusion length in a fully functional organic spin valve by low-energy muon spin rotation
Drew, A. J.
Hoppler, J.
Schulz, L.
Pratt, F. L.
Desai, P.
Shakya, P.
Kreouzis, T.
Gillin, W. P.
Suter, A.
Morley, N. A.
Malik, V. K.
Dubroka, A.
Kim, K. W.
Bouyanfif, H.
Bourqui, F.
Bernhard, C.
Scheuermann, R.
Nieuwenhuys, G. J.
Prokscha, T.
Morenzoni, E.
NATURE MATERIALS, 2009, 8 (02) : 109 - 114
[3] Magnetic phase diagram of low-doped La2-xSrxCuO4 thin films studied by low-energy muon-spin rotation
Stilp, E.
Suter, A.
Prokscha, T.
Morenzoni, E.
Keller, H.
Wojek, B. M.
Luetkens, H.
Gozar, A.
Logvenov, G.
Bozovic, I.
PHYSICAL REVIEW B, 2013, 88 (06)
[4] Investigation of the SiO2-SiC Interface Using Low-Energy Muon-Spin-Rotation Spectroscopy
Kumar, Piyush
Martins, Maria Ines Mendes
Bathen, Marianne Etzelmuller
Woerle, Judith
Prokscha, Thomas
Grossner, Ulrike
PHYSICAL REVIEW APPLIED, 2023, 19 (05)

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