The Route to Supercurrent Transparent Ferromagnetic Barriers in Superconducting Matrix

Yurii P. Ivanov; Soltan Soltan; Joachim Albrecht; Eberhard Goering; Gisela Schütz; Zaoli Zhang; Andrey Chuvilin

doi:10.1021/acsnano.9b00888

The Route to Supercurrent Transparent Ferromagnetic Barriers in Superconducting Matrix

Yurii P. Ivanov
, Soltan Soltan
, Joachim Albrecht
, Eberhard Goering
, Gisela Schütz
, Zaoli Zhang
, Andrey Chuvilin

University of Cambridge
Center for Molecular Medicine of the Austrian Academy of Sciences
Far Eastern Federal University
Faculty of Science
Max Planck Institute for Intelligent Systems
Research Institute for Innovative Surfaces FINO
CIC nanoGUNE
Basque Foundation for Science

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

6 Scopus citations

Abstract

A ferromagnetic barrier thinner than the coherence length in high-temperature superconductors is realized in the multilayers of YBa₂Cu₃O_7-δ and La_0.67Ca_0.33MnO₃. We used epitaxial growth of YBCO on «110»SrTiO₃ substrates by pulsed laser deposition to prepare thin superconducting films with copper oxide planes oriented at an angle to the substrate surface. Subsequent deposition of LCMO and finally a second YBCO layer produces a superconductor/ferromagnet/superconductor trilayer containing an ultrathin ferromagnetic barrier with sophisticated geometry at which the long axis of coherence length ovoid of YBCO is pointing across the LCMO ferromagnetic layer. A detailed characterization of this structure is achieved using high-resolution electron microscopy.

Original language	English
Pages (from-to)	5655-5661
Number of pages	7
Journal	ACS Nano
Volume	13
Issue number	5
DOIs	https://doi.org/10.1021/acsnano.9b00888
State	Published - 28 May 2019
Externally published	Yes

Keywords

SFS junction
epitaxial oxides
ferromagnetic oxide
high-temperature superconductor
quantum electronics

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10.1021/acsnano.9b00888

Cite this

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title = "The Route to Supercurrent Transparent Ferromagnetic Barriers in Superconducting Matrix",

abstract = "A ferromagnetic barrier thinner than the coherence length in high-temperature superconductors is realized in the multilayers of YBa2Cu3O7-δ and La0.67Ca0.33MnO3. We used epitaxial growth of YBCO on «110»SrTiO3 substrates by pulsed laser deposition to prepare thin superconducting films with copper oxide planes oriented at an angle to the substrate surface. Subsequent deposition of LCMO and finally a second YBCO layer produces a superconductor/ferromagnet/superconductor trilayer containing an ultrathin ferromagnetic barrier with sophisticated geometry at which the long axis of coherence length ovoid of YBCO is pointing across the LCMO ferromagnetic layer. A detailed characterization of this structure is achieved using high-resolution electron microscopy.",

keywords = "SFS junction, epitaxial oxides, ferromagnetic oxide, high-temperature superconductor, quantum electronics",

author = "Ivanov, \{Yurii P.\} and Soltan Soltan and Joachim Albrecht and Eberhard Goering and Gisela Sch{\"u}tz and Zaoli Zhang and Andrey Chuvilin",

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doi = "10.1021/acsnano.9b00888",

language = "English",

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T1 - The Route to Supercurrent Transparent Ferromagnetic Barriers in Superconducting Matrix

AU - Ivanov, Yurii P.

AU - Soltan, Soltan

AU - Albrecht, Joachim

AU - Goering, Eberhard

AU - Schütz, Gisela

AU - Zhang, Zaoli

AU - Chuvilin, Andrey

PY - 2019/5/28

Y1 - 2019/5/28

N2 - A ferromagnetic barrier thinner than the coherence length in high-temperature superconductors is realized in the multilayers of YBa2Cu3O7-δ and La0.67Ca0.33MnO3. We used epitaxial growth of YBCO on «110»SrTiO3 substrates by pulsed laser deposition to prepare thin superconducting films with copper oxide planes oriented at an angle to the substrate surface. Subsequent deposition of LCMO and finally a second YBCO layer produces a superconductor/ferromagnet/superconductor trilayer containing an ultrathin ferromagnetic barrier with sophisticated geometry at which the long axis of coherence length ovoid of YBCO is pointing across the LCMO ferromagnetic layer. A detailed characterization of this structure is achieved using high-resolution electron microscopy.

AB - A ferromagnetic barrier thinner than the coherence length in high-temperature superconductors is realized in the multilayers of YBa2Cu3O7-δ and La0.67Ca0.33MnO3. We used epitaxial growth of YBCO on «110»SrTiO3 substrates by pulsed laser deposition to prepare thin superconducting films with copper oxide planes oriented at an angle to the substrate surface. Subsequent deposition of LCMO and finally a second YBCO layer produces a superconductor/ferromagnet/superconductor trilayer containing an ultrathin ferromagnetic barrier with sophisticated geometry at which the long axis of coherence length ovoid of YBCO is pointing across the LCMO ferromagnetic layer. A detailed characterization of this structure is achieved using high-resolution electron microscopy.

KW - SFS junction

KW - epitaxial oxides

KW - ferromagnetic oxide

KW - high-temperature superconductor

KW - quantum electronics

UR - https://www.scopus.com/pages/publications/85065069012

U2 - 10.1021/acsnano.9b00888

DO - 10.1021/acsnano.9b00888

M3 - Article

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AN - SCOPUS:85065069012

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EP - 5661

JO - ACS Nano

JF - ACS Nano

IS - 5

ER -

The Route to Supercurrent Transparent Ferromagnetic Barriers in Superconducting Matrix

Abstract

Keywords

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