Concept

SQUID

Related publications (38)

High-sensitive superconducting magnetometry on a two-dimensional electron gas up to 10 Tesla

We report on new magnetization studies on a two-dimensional electron system (2DES) revealing spin splitting of the Landau levels. For this, we have built a high-sensitive susceptometer consisting of a low-noise thin-film dc superconducting quantum interfer ...

American Institute of Physics1997

SQUID-susceptometry up to 10Tesla: An improved method for magnetization studies on a two-dimensional electron system

Dirk Grundler

We report on a high-sensitive SQUID-susceptometer for magnetization studies on two-dimensional electron systems (2DES). It consists of a low-noise thin-film dc SQUID and a wire-wound first-order gradiometer and is operated inside a superconducting 10 T-mag ...

1997

Mode coupling aspects in a vibrating gyroscope

Philippe Renaud

In this paper a new method for gyroscopic sensitivity evaluation of a vibrating angular rate sensor is presented. This method is used to evaluate the angular rate sensitivity of a four-beam-bridge gyroscope realized at IMT Neuchatel [ii. The frequency spli ...

1997

High- SQUID magnetometers for biomagnetic measurements

Dirk Grundler

We have designed and fabricated three types of high- SQUID (superconducting quantum interference device) magnetometers based on step-edge Josephson junctions using three different concepts of coupling magnetic flux into the SQUID: (i) a single pickup loop ...

1996

Multilevel devices of YBa/sub 2/Cu/sub 3/O/sub 7/ with NdGaO/sub 3/ barrier

Dirk Grundler

We have fabricated YBa/sub 2/Cu/sub 3/O/sub 7/ ramp-type junctions incorporating a barrier layer of NdGaO/sub 3/ with a nominal thickness of 2 nm. The junctions exhibit pronounced Josephson effects and operate up to 82 K. The characteristics are well descr ...

Institute of Electrical and Electronics Engineers1995

Integrated high-T/sub c/ SQUID magnetometer

Dirk Grundler

We have fabricated an integrated SQUID magnetometer based on Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7/ step-edge Josephson junctions. A tight coupling between the input coil and the SQUID washer has been achieved with a coupling coefficient K of 0.9. Noise measur ...

1995

A multi-layer process for the fabrication of HTSC flux transformers and SQUIDS

Dirk Grundler

A multi-layer technology, based on YBaCuO as the superconducting material and SrTiO3 as the insulating material, is described. Patterning is performed by photolithography and Ar-ion-beam etching under fiat incidence. Using a resist bake-out prior to the et ...

1994

Origin of 1/f noise in Y1Ba2Cu3O7−x step-edge dc SQUIDs

Dirk Grundler

We have fabricated Y1Ba2Cu3O7-x step-edge junction dc superconducting quantum interference devices (SQUIDs) and characterized their noise performance. The current-voltage characteristics of our SQUIDs are of resistively shunted junction type with critical ...

American Institute of Physics1993

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