Integrated high-transition temperature magnetometer with only two superconducting layers

R. Kromann; J.J. Kingston; A.H. Miklich; L.T. Sagdahl; J. Clarke

doi:10.1063/1.110781

Integrated high-transition temperature magnetometer with only two superconducting layers

R. Kromann, J.J. Kingston, A.H. Miklich, L.T. Sagdahl, J. Clarke

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Abstract

We describe the fabrication and testing of an integrated YBa2Cu3O7-x thin-film magnetometer consisting of a dc superconducting quantum interference device (SQUID), with biepitaxial grain boundary junctions, integrated with a flux transformer on a single substrate. Only two superconducting layers are required, the SQUID body serving as the crossunder that completes the multiturn flux transformer. The highest temperature at which any of the magnetometers functioned was 76 K. At 60 K the magnetic field gain of this device was 63, and the magnetic field noise was 160 fT Hz-1/2 at 2 kHz, increasing to 3.4 pT Hz-1/2 at 1 Hz.

Original language	English
Journal	Applied Physics Letters
Volume	63
Issue number	4
Pages (from-to)	559-561
ISSN	0003-6951
DOIs	https://doi.org/10.1063/1.110781
Publication status	Published - 1993

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title = "Integrated high-transition temperature magnetometer with only two superconducting layers",

abstract = "We describe the fabrication and testing of an integrated YBa2Cu3O7-x thin-film magnetometer consisting of a dc superconducting quantum interference device (SQUID), with biepitaxial grain boundary junctions, integrated with a flux transformer on a single substrate. Only two superconducting layers are required, the SQUID body serving as the crossunder that completes the multiturn flux transformer. The highest temperature at which any of the magnetometers functioned was 76 K. At 60 K the magnetic field gain of this device was 63, and the magnetic field noise was 160 fT Hz-1/2 at 2 kHz, increasing to 3.4 pT Hz-1/2 at 1 Hz. ",

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author = "R. Kromann and J.J. Kingston and A.H. Miklich and L.T. Sagdahl and J. Clarke",

year = "1993",

doi = "10.1063/1.110781",

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volume = "63",

pages = "559--561",

journal = "Applied Physics Letters",

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T1 - Integrated high-transition temperature magnetometer with only two superconducting layers

AU - Kromann, R.

AU - Kingston, J.J.

AU - Miklich, A.H.

AU - Sagdahl, L.T.

AU - Clarke, J.

PY - 1993

Y1 - 1993

N2 - We describe the fabrication and testing of an integrated YBa2Cu3O7-x thin-film magnetometer consisting of a dc superconducting quantum interference device (SQUID), with biepitaxial grain boundary junctions, integrated with a flux transformer on a single substrate. Only two superconducting layers are required, the SQUID body serving as the crossunder that completes the multiturn flux transformer. The highest temperature at which any of the magnetometers functioned was 76 K. At 60 K the magnetic field gain of this device was 63, and the magnetic field noise was 160 fT Hz-1/2 at 2 kHz, increasing to 3.4 pT Hz-1/2 at 1 Hz.

AB - We describe the fabrication and testing of an integrated YBa2Cu3O7-x thin-film magnetometer consisting of a dc superconducting quantum interference device (SQUID), with biepitaxial grain boundary junctions, integrated with a flux transformer on a single substrate. Only two superconducting layers are required, the SQUID body serving as the crossunder that completes the multiturn flux transformer. The highest temperature at which any of the magnetometers functioned was 76 K. At 60 K the magnetic field gain of this device was 63, and the magnetic field noise was 160 fT Hz-1/2 at 2 kHz, increasing to 3.4 pT Hz-1/2 at 1 Hz.

KW - Materialer med særlige fysiske og kemiske egenskaber

U2 - 10.1063/1.110781

DO - 10.1063/1.110781

M3 - Journal article

SN - 0003-6951

VL - 63

SP - 559

EP - 561

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 4

ER -

Integrated high-transition temperature magnetometer with only two superconducting layers

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