LTS slotted SQUIDs for reduction of 1/f noise

E. Bartolomé; R López; J. Flokstra; H. Rogalla

doi:10.1016/S0921-4534(02)00678-0

LTS slotted SQUIDs for reduction of 1/f noise

E. Bartolomé^*
, R López
, J. Flokstra
, H. Rogalla

^*Corresponding author for this work

Faculty of Science and Technology

Research output: Contribution to journal › Article › Academic

3 Citations (Scopus)

9 Downloads (Pure)

Abstract

We have developed Nb/Al dc SQUIDs with differently structured washers (including slots and/or holes, a moat surrounding the washer and a zipper slit) to study the reduction of 1/f noise owing to hopping of flux vortices, trapped in the SQUID body during the cool-down process. A gradual reduction of the 1/f noise (measured down to 0.2 Hz) was measured for SQUIDs with increasing number of slots. Holes proved to be less effective than slots in reducing the flicker noise. The 1/f noise of the SQUIDs with a moat and zipper slit was smaller than that of a bold SQUID, but the reduction of noise was on the average less significant than for the slotted SQUIDs.

Original language	English
Pages (from-to)	233-236
Journal	Physica C
Volume	372-376
Issue number	Part 1
DOIs	https://doi.org/10.1016/S0921-4534(02)00678-0
Publication status	Published - 2002

Keywords

Moats
Reduction 1/f noise
LTS SQUIDs
Slots and holes

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10.1016/S0921-4534(02)00678-0

LTS slotted SQUIDs for reduction of 1/f noise
Bartolomé, M. E., López, R., Flokstra, J. & Rogalla, H., 26 Aug 2001.
Research output: Contribution to conference › Poster › Other research output

Cite this

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abstract = "We have developed Nb/Al dc SQUIDs with differently structured washers (including slots and/or holes, a moat surrounding the washer and a zipper slit) to study the reduction of 1/f noise owing to hopping of flux vortices, trapped in the SQUID body during the cool-down process. A gradual reduction of the 1/f noise (measured down to 0.2 Hz) was measured for SQUIDs with increasing number of slots. Holes proved to be less effective than slots in reducing the flicker noise. The 1/f noise of the SQUIDs with a moat and zipper slit was smaller than that of a bold SQUID, but the reduction of noise was on the average less significant than for the slotted SQUIDs.",

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T1 - LTS slotted SQUIDs for reduction of 1/f noise

AU - Bartolomé, E.

AU - López, R

AU - Flokstra, J.

AU - Rogalla, H.

PY - 2002

Y1 - 2002

N2 - We have developed Nb/Al dc SQUIDs with differently structured washers (including slots and/or holes, a moat surrounding the washer and a zipper slit) to study the reduction of 1/f noise owing to hopping of flux vortices, trapped in the SQUID body during the cool-down process. A gradual reduction of the 1/f noise (measured down to 0.2 Hz) was measured for SQUIDs with increasing number of slots. Holes proved to be less effective than slots in reducing the flicker noise. The 1/f noise of the SQUIDs with a moat and zipper slit was smaller than that of a bold SQUID, but the reduction of noise was on the average less significant than for the slotted SQUIDs.

AB - We have developed Nb/Al dc SQUIDs with differently structured washers (including slots and/or holes, a moat surrounding the washer and a zipper slit) to study the reduction of 1/f noise owing to hopping of flux vortices, trapped in the SQUID body during the cool-down process. A gradual reduction of the 1/f noise (measured down to 0.2 Hz) was measured for SQUIDs with increasing number of slots. Holes proved to be less effective than slots in reducing the flicker noise. The 1/f noise of the SQUIDs with a moat and zipper slit was smaller than that of a bold SQUID, but the reduction of noise was on the average less significant than for the slotted SQUIDs.

KW - Moats

KW - Reduction 1/f noise

KW - LTS SQUIDs

KW - Slots and holes

U2 - 10.1016/S0921-4534(02)00678-0

DO - 10.1016/S0921-4534(02)00678-0

M3 - Article

SN - 0921-4534

VL - 372-376

SP - 233

EP - 236

JO - Physica C

JF - Physica C

IS - Part 1

ER -

LTS slotted SQUIDs for reduction of 1/f noise

Abstract

Keywords

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LTS slotted SQUIDs for reduction of 1/f noise

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