Increased flux pinning in YBa2Cu3O 7-δ thin-film devices through embedding of Au nano crystals

C. Katzer; M. Schmidt; P. Michalowski; D. Kuhwald; F. Schmidl; V. Grosse; S. Treiber; C. Stahl; J. Albrecht; U. Hübner; A. Undisz; M. Rettenmayr; G. Schütz; P. Seidel

doi:10.1209/0295-5075/95/68005

Increased flux pinning in YBa₂Cu₃O _7-δ thin-film devices through embedding of Au nano crystals

C. Katzer
, M. Schmidt
, P. Michalowski
, D. Kuhwald
, F. Schmidl
, V. Grosse
, S. Treiber
, C. Stahl
, J. Albrecht
, U. Hübner
, A. Undisz
, M. Rettenmayr
, G. Schütz
, P. Seidel

Friedrich Schiller University Jena
Max Planck Institute for Intelligent Systems
Aalen University
Leibniz Institute of Photonic Technology (IPHT)

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

10 Scopus citations

Abstract

We prepared direct-current superconducting quantum interference device (dc-SQUID) gradiometers consisting of a single YBa₂Cu ₃O_{7- δ} (YBCO) layer on SrTiO₃ (STO) bicrystal substrates. The superconducting thin film was modified by embedding crystalline gold nanoparticles. We investigated the growth conditions of these particles as well as their influence on the properties of the YBCO thin film. In our magneto-optical measurements we found that the presence of embedded nano crystals results in a distinct enhancement of j_c over the whole investigated temperature range. We attribute the higher critical current density to an increased pinning, which also results in a reduction of the flux noise of our investigated gradiometers.

Original language	English
Article number	68005
Journal	Europhysics Letters
Volume	95
Issue number	6
DOIs	https://doi.org/10.1209/0295-5075/95/68005
State	Published - Sep 2011
Externally published	Yes

Access to Document

10.1209/0295-5075/95/68005

Cite this

Katzer, C., Schmidt, M., Michalowski, P., Kuhwald, D., Schmidl, F., Grosse, V., Treiber, S., Stahl, C., Albrecht, J., Hübner, U., Undisz, A., Rettenmayr, M., Schütz, G., & Seidel, P. (2011). Increased flux pinning in YBa₂Cu₃O _7-δ thin-film devices through embedding of Au nano crystals. Europhysics Letters, 95(6), Article 68005. https://doi.org/10.1209/0295-5075/95/68005

@article{60396d3bd38249b88995fc585e82afec,

title = "Increased flux pinning in YBa2Cu3O 7-δ thin-film devices through embedding of Au nano crystals",

abstract = "We prepared direct-current superconducting quantum interference device (dc-SQUID) gradiometers consisting of a single YBa2Cu 3O7- δ (YBCO) layer on SrTiO3 (STO) bicrystal substrates. The superconducting thin film was modified by embedding crystalline gold nanoparticles. We investigated the growth conditions of these particles as well as their influence on the properties of the YBCO thin film. In our magneto-optical measurements we found that the presence of embedded nano crystals results in a distinct enhancement of jc over the whole investigated temperature range. We attribute the higher critical current density to an increased pinning, which also results in a reduction of the flux noise of our investigated gradiometers.",

author = "C. Katzer and M. Schmidt and P. Michalowski and D. Kuhwald and F. Schmidl and V. Grosse and S. Treiber and C. Stahl and J. Albrecht and U. H{\"u}bner and A. Undisz and M. Rettenmayr and G. Sch{\"u}tz and P. Seidel",

year = "2011",

month = sep,

doi = "10.1209/0295-5075/95/68005",

language = "English",

volume = "95",

journal = "Europhysics Letters",

issn = "0295-5075",

publisher = "IOP Publishing Ltd.",

number = "6",

}

TY - JOUR

T1 - Increased flux pinning in YBa2Cu3O 7-δ thin-film devices through embedding of Au nano crystals

AU - Katzer, C.

AU - Schmidt, M.

AU - Michalowski, P.

AU - Kuhwald, D.

AU - Schmidl, F.

AU - Grosse, V.

AU - Treiber, S.

AU - Stahl, C.

AU - Albrecht, J.

AU - Hübner, U.

AU - Undisz, A.

AU - Rettenmayr, M.

AU - Schütz, G.

AU - Seidel, P.

PY - 2011/9

Y1 - 2011/9

N2 - We prepared direct-current superconducting quantum interference device (dc-SQUID) gradiometers consisting of a single YBa2Cu 3O7- δ (YBCO) layer on SrTiO3 (STO) bicrystal substrates. The superconducting thin film was modified by embedding crystalline gold nanoparticles. We investigated the growth conditions of these particles as well as their influence on the properties of the YBCO thin film. In our magneto-optical measurements we found that the presence of embedded nano crystals results in a distinct enhancement of jc over the whole investigated temperature range. We attribute the higher critical current density to an increased pinning, which also results in a reduction of the flux noise of our investigated gradiometers.

AB - We prepared direct-current superconducting quantum interference device (dc-SQUID) gradiometers consisting of a single YBa2Cu 3O7- δ (YBCO) layer on SrTiO3 (STO) bicrystal substrates. The superconducting thin film was modified by embedding crystalline gold nanoparticles. We investigated the growth conditions of these particles as well as their influence on the properties of the YBCO thin film. In our magneto-optical measurements we found that the presence of embedded nano crystals results in a distinct enhancement of jc over the whole investigated temperature range. We attribute the higher critical current density to an increased pinning, which also results in a reduction of the flux noise of our investigated gradiometers.

UR - https://www.scopus.com/pages/publications/80053024319

U2 - 10.1209/0295-5075/95/68005

DO - 10.1209/0295-5075/95/68005

M3 - Article

AN - SCOPUS:80053024319

SN - 0295-5075

VL - 95

JO - Europhysics Letters

JF - Europhysics Letters

IS - 6

M1 - 68005

ER -

Increased flux pinning in YBa₂Cu₃O _7-δ thin-film devices through embedding of Au nano crystals

Abstract

Access to Document

Other files and links

Fingerprint

Cite this