Operation of a high-T-C SQUID gradiometer with a two-stage MEMS-based Joule-Thomson micro-cooler
Artikel i vetenskaplig tidskrift, 2016

Practical applications of high-T-C superconducting quantum interference devices (SQUIDs) require cheap, simple in operation, and cryogen-free cooling. Mechanical cryo-coolers are generally not suitable for operation with SQUIDs due to their inherent magnetic and vibrational noise. In this work, we utilized a commercial Joule-Thomson microfluidic two-stage cooling system with base temperature of 75 K. We achieved successful operation of a bicrystal high-T-C SQUID gradiometer in shielded magnetic environment. The micro-cooler head contains neither moving nor magnetic parts, and thus does not affect magnetic flux noise of the SQUID even at low frequencies. Our results demonstrate that such a microfluidic cooling system is a promising technology for cooling of high-T-C SQUIDs in practical applications such as magnetic bioassays.

superconducting quantum interference device

1994

high-T-C planar SQUID gradiometers

micro-coolers

cryocooler

sensor

p3494

applied physics letters

noise

v64

klich ah

Physics

system

Författare

Alexei Kalaboukhov

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

E. J. de Hoon

Kryoz Technologies B.V.

K. Kuit

Kryoz Technologies B.V.

Ppppm Lerou

Kryoz Technologies B.V.

Maxim Chukharkin Leonidovich

Chalmers University of Technology

Justin Schneiderman

Göteborgs universitet

Sobhan Sepehri

Chalmers University of Technology

Anke Sanz-Velasco

IMT Masken und Teilungen AG

Aldo Jesorka

Kemi och kemiteknik, Kemi och biokemi, Fysikalisk kemi

Dag Winkler

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Superconductor Science and Technology

0953-2048 (ISSN) 1361-6668 (eISSN)

Vol. 29

Styrkeområden

Nanovetenskap och nanoteknik

Ämneskategorier

Elektroteknik och elektronik

Nanoteknik

DOI

10.1088/0953-2048/29/9/095014