PhD Position Delocalized Quantum Magnetism in Atomic Spin Assemblies

PhD Position Delocalized Quantum Magnetism in Atomic Spin Assemblies

Build the smallest structures humans can make to study fundamental quantum physics

The PhD project is part of a larger research effort in the field of atomic-scale spin dynamics. In our group we use scanning tunneling microscopy (STM) to study individual magnetic atoms. In addition to visualising the atoms, the tip of the STM can be used to position the atoms one-by-one into an arrangement of choice. We use this methodology to assemble custom-engineered spin structures, thus creating real-world examples of textbook spin Hamiltonians.

Specifically, the aim of this PhD project is to investigate assemblies where neighbouring atoms are sufficiently close for their outermost valence electrons to form molecular orbitals. As such, the s-shell magnetism will become delocalized across larger length scales, providing pathways for interacting with localized f-shell and nuclear spins over extended distances. The project offers ample freedom for customization and differentiation depending on your personal research interests.

You will use a variety of measurement techniques, including inelastic electron tunnelling spectroscopy (IETS) and electron spin resonance (ESR), implemented within the STM, to address the atomic spin states. Making use of advanced nanosecond pulsed measurement techniques, you will study the coherent quantum dynamics of the electron, orbital and nuclear magnetic moments of various isotopes. The research builds further on recent achievements in our group, including single-shot nuclear readout and electron-nuclear double resonance (ENDOR).

• MSc degree in Physics or a closely related discipline.
• Solid understanding of quantum mechanics, in particular spin physics. Even more important than that: an intrinsic motivation to expand your knowledge of these topics.
• Experience with experimental research, preferably including vacuum and cryogenic techniques. Specific knowledge of STM is not required.
• Experience with coding, preferably in Python.
• Team-working mentality as well as the ability to operate efficiently on your own.
• Excellent control of the English language, in both spoken and written form.

Doctoral candidates will be offered a 4-year period of employment in principle, but in the form of 2 employment contracts. An initial 1.5-year contract with an official go/no-go progress assessment within 15 months, followed by an additional contract for the remaining 2.5 years assuming everything goes well and performance requirements are met.

Salary and benefits are in accordance with the Collective Labour Agreement for Dutch Universities, increasing from €3059 - €3881 gross per month, from the first year to the fourth year based on a full-time contract (38 hours), plus 8% holiday allowance and an end-of-year bonus of 8.3%.