Surface Phonon Lifetimes and Energy Dissipation in Quantum and 2D Materials

About the project

About the Project How does energy flow and dissipate at the surfaces of quantum materials? One PhD position remains open within the LiPhED project, investigating the microscopic dynamics of surface excitations and bringing together advanced surface-science experiments and computational materials physics.. Surface Science | Condensed Matter Physics | 2D Materials | Quantum Materials | Computational Materials Science About the Project The surface science group at the Institute of Experimental Physics, Graz University of Technology, is offering one PhD position as part of the FWF-funded project “ LiPhED: Lifetime of surface Phonons and Energy Dissipation .” Energy dissipation at surfaces and interfaces is a central process in modern materials science, influencing the performance of nanoscale devices, two-dimensional materials, and emerging quantum technologies. However, the microscopic mechanisms that determine surface phonon lifetimes and energy transfer pathways remain insufficiently understood. Establishing a quantitative understanding of these processes is essential for controlling how energy flows in low-dimensional and quantum materials. The LiPhED project aims to develop a quantitative framework for understanding surface phonon lifetimes and energy dissipation. The project combines high-resolution surface-science experiments with atomistic and machine-learning-enhanced computational modelling to disentangle the microscopic mechanisms governing phonon dynamics at surfaces. The work will begin with the model system Ni(111) and then progress to two-dimensional materials, in particular hexagonal boron nitride (h-BN) on Ni(111). In this system, intercalation and substrate decoupling will be used to tune phonon lifetimes and energy dissipation. In the final stage, the project will explore selected quantum materials. Project Focus We are recruiting two PhD candidates for complementary experimental and computational roles . The candidates will work closely together throughout the project and will contribute to a shared understanding of surface dynamics in 2D and quantum materials . The experimentally oriented PhD position will focus on measurements using helium atom scattering and photoemission techniques in Graz, complemented by helium spin-echo spectroscopy at the CORDE facility in Cambridge . The computationally oriented PhD position will focus on atomistic modelling and machine-learning-enhanced simulations, carried out in close collaboration with E. Zojer in Graz and J. Meyer in Leiden . The project offers excellent opportunities to develop expertise in surface-science methods, computational modelling, advanced data analysis, and international scientific collaboration. Candidate Profile Applicants should hold, or be close to completing, a Master’s degree or equivalent in physics, chemistry, materials science , or a closely related discipline. Experience in one or more of the following areas is desirable: condensed matter physics, surface science, or nanoscience; ultrahigh-vacuum technology; scattering methods and reciprocal-space techniques; photoemission spectroscopy; atomistic modelling, computational materials science, or molecular dynamics. Basic programming skills, for example in Python and/or MATLAB, are expected. For the computational PhD position, stronger programming skills and previous experience in computational modelling are expected. Candidates should have a strong interest in experimental and/or computational surface science and enjoy working in an international research environment. Funding and Employment Conditions The position is funded through the Austrian Science Fund FWF and is available from 15 October 2026 or later. The contracts are limited to 3 years. The PhD position is fully funded through an employment contract of 30 hours per week, with remuneration according to the standard FWF salary scheme: €2,832.10 gross per month, paid 14 times per year. No tuition fees are normally charged for PhD studies at Austrian public universities. Research Environment The Institute of Experimental Physics at Graz University of Technology offers an excellent research environment, with access to broad scientific expertise, modern facilities, and a collaborative international research community. Doctoral researchers also benefit from supplementary qualification programmes and courses designed to support the development of scientific skills, professional networks, and future career prospects. Application The official TU Graz application deadline for this position has now passed. However, I am still happy to hear from strong candidates, especially those with an interest in the computational modelling aspects of the project, while the position remains available. If you would like to be considered, please contact me directly at tamtoegl@tugraz.at and include your CV, a short cover letter, and relevant transcripts/certificates. In your cover letter, please briefly state your research interests.

Research areas