This thesis presents pioneering work in the relatively new field of focused ion beam (FIB) sculpting of single crystals to produce bespoke devices and enable the investigation of physics that cannot be studied in bulk samples. It begins with a comprehensive and didactic account of how to achieve this sculpting, revealing the ‘tricks of the trade’ of state-of-the-art FIB microstructuring. In subsequent chapters, the author presents ground-breaking results obtained from microstructures of the delafossite oxide metal PdCoO2 and the heavy fermion superconductor CeIrIn5. In these elegant, forefront experiments, a new form of directional ballistic transport in the ultra-pure delafossites is described and explained. Furthermore, a new way to spatially modulate superconductivity induced by strain is demonstrated with electrical transport measurements that agree well with predictions based on thermoelastic finite element simulations.
By:
Maja D. Bachmann Imprint: Springer Nature Switzerland AG Country of Publication: Switzerland Edition: 2020 ed. Dimensions:
Height: 235mm,
Width: 155mm,
Weight: 273g ISBN:9783030513641 ISBN 10: 3030513645 Series:Springer Theses Pages: 153 Publication Date:29 August 2021 Audience:
Professional and scholarly
,
Undergraduate
Format:Paperback Publisher's Status: Active
Introduction.- Focused Ion Beam Micro-Machining.- On the Ballistic Motion of Electrons in PdCoO2.- Spatially Modulated Heavy Fermion Superconductivity in CeIrIn5.- Summary and Outlook.- Appendix.