Cooling electrons in nanoelectronic devices by on-chip demagnetisation

Cooling electrons in nanoelectronic devices by on-chip demagnetisation / Alexander Thomas Jones.

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...

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Bibliographic Details
Main Author: Jones, Alexander Thomas
Format: eBook
Language:English
Published: Cham, Switzerland : Springer, 2020.
Series:Springer theses.
Subjects:
Adiabatic demagnetization.
Electron temperature.
Low temperature engineering.
Materials science.
Spectrum analysis, spectrochemistry, mass spectrometry.
Low temperature physics.
Technology & Engineering > Material Science.
Science > Solid State Physics.
Science > Mechanics > Dynamics > Thermodynamics.
Low temperature engineering
Electron temperature
Adiabatic demagnetization
Low temperatures
Materials science
Solid state physics
Electronic books.
Online Access:Click for online access
Table of Contents:
  • Intro
  • Supervisor's Foreword
  • Abstract
  • Acknowledgements
  • Contents
  • Acronyms
  • 1 Introduction
  • References
  • 2 Background
  • 2.1 Cooling Techniques
  • 2.1.1 Dilution Refrigeration
  • 2.1.2 Magnetic Cooling
  • 2.2 Coulomb Blockade Thermometry
  • 2.2.1 Outline
  • 2.2.2 Orthodox Theory of Single Electron Tunnelling
  • 2.2.3 Practical Measurements
  • 2.3 On-Chip Refrigeration
  • 2.3.1 Motivation and Principles
  • 2.3.2 Techniques
  • References
  • 3 On-Chip Demagnetisation Cooling on a Cryogen-Free Dilution Refrigerator
  • 3.1 Coulomb Blockade Thermometer Device
  • 3.2 Experimental Set-Up
  • 3.2.1 Mounting and Heatsinking
  • 3.2.2 Electrical
  • 3.3 CBT Characteristics
  • 3.4 CBT Cooling
  • 3.4.1 Initial Experiments
  • 3.4.2 Thermal Modelling
  • 3.4.3 Optimisation
  • 3.5 Conclusions
  • References
  • 4 On-Chip Demagnetisation Cooling on a Cryogen-Filled Dilution Refrigerator
  • 4.1 Experimental Set-Up
  • 4.1.1 Mounting and Heatsinking
  • 4.1.2 Electrical
  • 4.2 CBT Measurements
  • 4.2.1 Additional Techniques
  • 4.2.2 Characterisation Results
  • 4.3 Demagnetisation Cooling
  • 4.4 Conclusions
  • References
  • 5 On-Chip Demagnetisation Cooling of a High Capacitance CBT
  • 5.1 Experimental Set-Up
  • 5.1.1 New CBT Fabrication
  • 5.1.2 Precooling
  • 5.2 CBT Characterisation
  • 5.3 Demagnetisation Cooling
  • 5.4 Heat Leaks
  • 5.5 CBT Copper
  • 5.6 Conclusions
  • References
  • 6 Summary and Outlook
  • References

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