Spin Diffusion Length in Ferromagnet/Superconductor Bilayers

S. L. Cheng; T. H. Chuang; J. G. Lin

doi:10.1109/TMAG.2017.2712194

Spin Diffusion Length in Ferromagnet/Superconductor Bilayers

S. L. Cheng, T. H. Chuang, J. G. Lin

Department of Chemical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

We report a systematic study on the bilayers of ferromagnetic Sm_1-xSr_xMnO₃ (SSMO) and superconducting YBa₂Cu₃O₇ (YBCO). The bilayer structure is composed of one SSMO layer of 10-nm thickness and one layer of YBCO of various thicknesses. The measurements of X-ray diffraction/reflectivity, resistivity, and magnetization were carried out for determining the crystalline properties and the superconducting temperatures of bilayers. A significant suppression of superconducting temperature is observed in all bilayers, indicating that the spin-polarized quasi-particles of SSMO are efficiently injected into the YBCO layer. The experimental results will be discussed in term of the spin diffusion length of polarized quasi-particles with a model of inverse proximity.

Original language	English
Article number	7938722
Journal	IEEE Transactions on Magnetics
Volume	53
Issue number	11
DOIs	https://doi.org/10.1109/TMAG.2017.2712194
State	Published - Nov 2017

Keywords

Exchange energy
polarized quasi-particle
spin diffusion length

Access to Document

10.1109/TMAG.2017.2712194

Cite this

@article{9a531222aff543a79d7402fa357da95a,

title = "Spin Diffusion Length in Ferromagnet/Superconductor Bilayers",

abstract = "We report a systematic study on the bilayers of ferromagnetic Sm1-xSrxMnO3 (SSMO) and superconducting YBa2Cu3O7 (YBCO). The bilayer structure is composed of one SSMO layer of 10-nm thickness and one layer of YBCO of various thicknesses. The measurements of X-ray diffraction/reflectivity, resistivity, and magnetization were carried out for determining the crystalline properties and the superconducting temperatures of bilayers. A significant suppression of superconducting temperature is observed in all bilayers, indicating that the spin-polarized quasi-particles of SSMO are efficiently injected into the YBCO layer. The experimental results will be discussed in term of the spin diffusion length of polarized quasi-particles with a model of inverse proximity.",

keywords = "Exchange energy, polarized quasi-particle, spin diffusion length",

author = "Cheng, {S. L.} and Chuang, {T. H.} and Lin, {J. G.}",

note = "Publisher Copyright: {\textcopyright} 2017 IEEE.",

year = "2017",

month = nov,

doi = "10.1109/TMAG.2017.2712194",

language = "???core.languages.en_GB???",

volume = "53",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

number = "11",

}

TY - JOUR

T1 - Spin Diffusion Length in Ferromagnet/Superconductor Bilayers

AU - Cheng, S. L.

AU - Chuang, T. H.

AU - Lin, J. G.

PY - 2017/11

Y1 - 2017/11

N2 - We report a systematic study on the bilayers of ferromagnetic Sm1-xSrxMnO3 (SSMO) and superconducting YBa2Cu3O7 (YBCO). The bilayer structure is composed of one SSMO layer of 10-nm thickness and one layer of YBCO of various thicknesses. The measurements of X-ray diffraction/reflectivity, resistivity, and magnetization were carried out for determining the crystalline properties and the superconducting temperatures of bilayers. A significant suppression of superconducting temperature is observed in all bilayers, indicating that the spin-polarized quasi-particles of SSMO are efficiently injected into the YBCO layer. The experimental results will be discussed in term of the spin diffusion length of polarized quasi-particles with a model of inverse proximity.

AB - We report a systematic study on the bilayers of ferromagnetic Sm1-xSrxMnO3 (SSMO) and superconducting YBa2Cu3O7 (YBCO). The bilayer structure is composed of one SSMO layer of 10-nm thickness and one layer of YBCO of various thicknesses. The measurements of X-ray diffraction/reflectivity, resistivity, and magnetization were carried out for determining the crystalline properties and the superconducting temperatures of bilayers. A significant suppression of superconducting temperature is observed in all bilayers, indicating that the spin-polarized quasi-particles of SSMO are efficiently injected into the YBCO layer. The experimental results will be discussed in term of the spin diffusion length of polarized quasi-particles with a model of inverse proximity.

KW - Exchange energy

KW - polarized quasi-particle

KW - spin diffusion length

UR - http://www.scopus.com/inward/record.url?scp=85032905743&partnerID=8YFLogxK

U2 - 10.1109/TMAG.2017.2712194

DO - 10.1109/TMAG.2017.2712194

M3 - 期刊論文

AN - SCOPUS:85032905743

SN - 0018-9464

VL - 53

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 11

M1 - 7938722

ER -

Spin Diffusion Length in Ferromagnet/Superconductor Bilayers

Abstract

Keywords

Access to Document

Fingerprint

Cite this