Directly coupled superconducting quantum interference device magnetometer fabricated in magnesium diboride by focused ion beam

G Burnell, DJ Kang, DA Ansell, HN Lee… - Applied physics …, 2002 - pubs.aip.org
We report the fabrication of a directly coupled superconducting quantum interference device
(SQUID) magnetometer in MgB 2 using a focused ion beam to create Josephson junctions in …

High quality step-edge substrates for high-Tc superconducting devices

CH Wu, MJ Chen, JC Chen, KL Chen… - Review of scientific …, 2006 - pubs.aip.org
Despite the significant progress in fabrication methods of step edge, the lack of
reproducibility still hinders their use in more complicated systems. To pursue the high …

High Tc SQUID systems for magnetophysiology

EJ Tarte, PE Magnelind, AY Tzalenchuk… - Physica C …, 2002 - Elsevier
Magnetophysiology is the use of a superconducting quantum interference device (SQUID)
based instrument to detect neuromagnetic fields evoked by electrical stimulation of brain …

Optimization of step-edge substrates for high-TC superconducting devices

CH Wu, MJ Chen, MH Hsu, JC Chen, KL Chen… - Physica C …, 2005 - Elsevier
To pursue step-edge for high-TC superconducting grain boundary junctions or SQUIDs with
high reproducibility and quality, we have developed two-step procedures of fabricating very …

MgB2 junctions and SQUIDs fabricated by focused ion beam

G Burnell, DJ Kang, DA Ansell, HN Lee… - Superconductor …, 2003 - iopscience.iop.org
We have recently developed a technique for fabricating SNS junctions in MgB 2 thin films
using a focused ion beam. These junctions show a strong modulation of the critical current …

Performance of high-T/sub c/dc SQUID magnetometers with resistively shunted inductances compared to" unshunted" devices

F Kahlmann, WE Booij, MG Blamire… - IEEE transactions on …, 2001 - ieeexplore.ieee.org
We have investigated resistively shunted direct-coupled high-T/sub c/dc SQUID
magnetometers with different inductances. At T= 77 K, good quantitative agreement was …

Noise properties of an YBCO SQUID

J Blomgren, T Eriksson, E Tarte, D Winkler - Physica C: Superconductivity, 2002 - Elsevier
We have measured the electrical and the white noise properties of a high-Tc SQUID at 65 K,
using a room temperature low noise amplifier and a high-Tc SQUID-based voltage amplifier …

Electromagnetic modelling of superconducting sensor designs

G Gerra - 2003 - repository.cam.ac.uk
The problem of design optimisation of thin film direct current Superconducting QUantum
Interference Device (SQUID) magnetometers made of YBCO (YBa2Cu3O7-x) was …

Study of Y-Ba-Cu-O dc SQUID devices with resistively shunted inductances

YQ Shen, PRE Petersen, T Holst - IEEE transactions on applied …, 2001 - ieeexplore.ieee.org
A number of dc SQUIDs with different inductance values have been fabricated in YBa/sub
2/Cu/sub 3/O/sub 7/thin films on MgO substrates. Resistors prepared in Au thin films have …

Investigation of YBCO SQUIDs with gold damping resistors

DS Pinker, LK Sahoo, DA Ansell… - IEEE transactions on …, 2005 - ieeexplore.ieee.org
It has been previously shown that resistively damping the inductances of YBCO SQUIDs
reduces the degradation of their output voltage by large values of the screening parameter …