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Cooling Electrons in Nanoelectronic Devices by On-Chip Demagnetisation

Alexander Thomas Jones

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English
Springer Nature Switzerland AG
15 July 2021
Series: Springer Theses
This thesis demonstrates that an ultralow temperature refrigeration technique called ""demagnetisation refrigeration"" can be miniaturised and incorporated onto millimeter-sized chips to cool nanoelectronic circuits, devices and materials. Until recently, the lowest temperature ever reached in such systems was around 4 millikelvin. Here, a temperature of 1.2mK is reported in a nanoelectronic device. The thesis introduces the idea that on-chip demagnetization refrigeration can be used to cool a wide variety of nanostructures and devices to microkelvin temperatures. This brings the exciting possibility of discovering new physics, such as exotic electronic phases, in an unexplored regime and the potential to improve the performance of existing applications, including solid-state quantum technologies. Since the first demonstration of on-chip demagnetization refrigeration, described here, the technique has been taken up by other research groups around the world. The lowest on-chip temperatureis currently 0.4mK. Work is now underway to adapt the technique to cool other materials and devices, ultimately leading to a platform to study nanoscale materials, devices and circuits at microkelvin temperatures.     
By:  
Imprint:   Springer Nature Switzerland AG
Country of Publication:   Switzerland
Edition:   2020 ed.
Dimensions:   Height: 235mm,  Width: 155mm, 
Weight:   180g
ISBN:   9783030512354
ISBN 10:   3030512355
Series:   Springer Theses
Pages:   94
Publication Date:  
Audience:   Professional and scholarly ,  Undergraduate
Format:   Paperback
Publisher's Status:   Active

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