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

micro-coolers

high-TC planar SQUID gradiometers

Visa alla personer

Publicerad i

Superconductor Science and Technology

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

Vol. 29Nummer/häfte 9 art. nr 095014

Kategorisering

Styrkeområden

Nanovetenskap och nanoteknik

Ämneskategorier

Elektroteknik och elektronik

Nanoteknik

Den kondenserade materiens fysik

Identifikatorer

DOI

10.1088/0953-2048/29/9/095014

Mer information

Senast uppdaterat

2022-04-05