Superconducting MgB2 films on MgO substrates

Markus Kühberger; Gerhard Gritzner; R. Fuger; M. Eisterer; S. Tönies; Harald W. Weber

doi:10.1007/s00339-004-2922-5

Superconducting MgB2 films on MgO substrates

Markus Kühberger, Gerhard Gritzner, R. Fuger, M. Eisterer, S. Tönies, Harald W. Weber

Institute of Chemical Technology of Inorganic Materials

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

Abstract

We report the preparation of homogeneous, polycrystalline MgB2 films on single-crystalline MgO substrates by screen printing and airbrush methods. The superconducting material was obtained by the reaction of Mg vapor with boron precursor layers in special steel casings under Argonon/hydrogen atmosphere at 800 ◦C and ambient pressure. After polishing of the surface, films with a thickness of about 2 μm were obtained. Electrolytic polishing improved the surface smoothness of the samples. Transition temperatures of about 33 K were measured with irreversibility fields of up to 6 T at 20 K. Transport critical current densities of 2×109 Am−2 were obtained at 4.2 K in self-field for a MgB2 film on single-crystalline MgO.

Original language	English
Pages (from-to)	127-129
Number of pages	3
Journal	Applied Physics A
Volume	80
Issue number	1
DOIs	https://doi.org/10.1007/s00339-004-2922-5
Publication status	Published - Jan 2005

Fields of science

104005 Electrochemistry
104006 Solid state chemistry
104014 Surface chemistry
104017 Physical chemistry
105113 Crystallography
105116 Mineralogy
503013 Subject didactics of natural sciences
204 Chemical Process Engineering
204001 Inorganic chemical technology
205016 Materials testing
210006 Nanotechnology
211104 Metallurgy

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T1 - Superconducting MgB2 films on MgO substrates

AU - Kühberger, Markus

AU - Gritzner, Gerhard

AU - Fuger, R.

AU - Eisterer, M.

AU - Tönies, S.

AU - Weber, Harald W.

PY - 2005/1

Y1 - 2005/1

N2 - We report the preparation of homogeneous, polycrystalline MgB2 films on single-crystalline MgO substrates by screen printing and airbrush methods. The superconducting material was obtained by the reaction of Mg vapor with boron precursor layers in special steel casings under Argonon/hydrogen atmosphere at 800 ◦C and ambient pressure. After polishing of the surface, films with a thickness of about 2 μm were obtained. Electrolytic polishing improved the surface smoothness of the samples. Transition temperatures of about 33 K were measured with irreversibility fields of up to 6 T at 20 K. Transport critical current densities of 2×109 Am−2 were obtained at 4.2 K in self-field for a MgB2 film on single-crystalline MgO.

AB - We report the preparation of homogeneous, polycrystalline MgB2 films on single-crystalline MgO substrates by screen printing and airbrush methods. The superconducting material was obtained by the reaction of Mg vapor with boron precursor layers in special steel casings under Argonon/hydrogen atmosphere at 800 ◦C and ambient pressure. After polishing of the surface, films with a thickness of about 2 μm were obtained. Electrolytic polishing improved the surface smoothness of the samples. Transition temperatures of about 33 K were measured with irreversibility fields of up to 6 T at 20 K. Transport critical current densities of 2×109 Am−2 were obtained at 4.2 K in self-field for a MgB2 film on single-crystalline MgO.

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DO - 10.1007/s00339-004-2922-5

M3 - Article

SN - 1432-0630

VL - 80

SP - 127

EP - 129

JO - Applied Physics A

JF - Applied Physics A

IS - 1

ER -

Superconducting MgB2 films on MgO substrates

Abstract

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