Year: 2026
Type: conference-paper
Abstract: Recent experiments have shown that adiabatic demagnetization refrigerators can be miniaturized and integrated with small electronic devices to reach on-chip electron temperatures below 1 mK [1]–[4]. Magnetic cooling with an external refrigeration stage can also achieve similar temperatures for samples with very low contact resistances [5]. Alongside the possibility of studying electronic properties of devices and materials in a new regime, the ability to cool far below 10 mK will have practical benefits for quantum technologies, metrological standards and sensors.On-chip magnetic cooling has so far been applied to a small range of devices. For the technique to become widely applicable, more work is needed to understand the heat flows between materials and the thermal subsystems at the micro- and nanometer scale. On-chip cooling provides new ways to measure thermal properties such as electron-phonon coupling and boundary resistances [6]. Here we review the state-of-the-art in on-chip magnetic cooling and discuss recent progress towards making the technique more broadly applicable.
Author: Jonathan R. Prance
Institution: Lancaster University
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7160404560