Magnetothermal Properties near Quantum Criticality in the Itinerant Metamagnet Sr3Ru2O7

1. Front Matter

   Pages i-x

   PDF

2. Introduction

   • Andreas W. Rost

   Pages 1-5

3. Background Physics

   • Andreas W. Rost

   Pages 7-44

4. Thermodynamic Measurements of Entropy

   • Andreas W. Rost

   Pages 45-64

5. Design and Characterisation of Novel Experimental Setup

   • Andreas W. Rost

   Pages 65-92

6. Experimental Results and Discussion

   • Andreas W. Rost

   Pages 93-131

7. Conclusions and Future Work

   • Andreas W. Rost

   Pages 133-138

8. Appendices

   • Andreas W. Rost

   Pages 139-145

Our department nominated this thesis for a Springer award because we regard it as an outstanding piece of work, carried out with a remarkable level of independence. Andreas Rost joined us in 2005, as one of the inaugural Prize Students of the Scottish Universities Physics Alliance. Our research group has been working on Sr Ru O , in collaboration with our colleagues in the group of Professor Y. Maeno 3 2 7 at Kyoto, since 1998. By early 2005 we had tantalising evidence that a novel phase was forming at very low temperatures, in an overall phase diagram dominated by quantum ?uctuations. We knew that comprehensive thermodynamic information would be needed in order to understand how this was happening, and that the demanding constraints of low temperature and high magnetic ?eld meant that bespoke apparatus would need to be constructed. Andreas had studied the speci?c heat of glasses below 50 mK during his diploma thesis work at Heidelberg, and was brimming with ideas about how to proceed. We gave him advice, and constantly discussed the physics with him, but quickly realised that the best way to proceed practically was to give him a budget, and let him take the main design decisions, double-checking with us from time to time.

• Electron Nematic
• Entropy
• Magnetocaloric Effect
• Magnetothermal Oscillations
• Quantum Criticality
• Specific Heat
• Sr3Ru2O7
• electron
• environment
• experiment
• iron
• phase
• phase transition
• system
• temperature

• Scottish Universities Physics Alliance (SUPA), School of Physics & Astronomy, University of St Andrews, St Andrews, UK

  Andreas W. Rost

• School of Physics & Astronomy, University of St Andrews, St Andrews, UK

  Prof. Andrew Mackenzi

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