PhD project: Nodal finite-difference micromagnetics on distributed systems

23.08.2021

+ Supervisor: Claas Abert

+ Physics of Functional Materials group at University of Vienna

 

The bigger picture

Computational micromagnetics has a long history as a valuable tool for the theoretical investigation of magnetic systems at the micron scale. Despite massive advances in computing power, today’s micromag- netic simulations are still restricted to the micron sized systems since the micromagnetic model calls for a very fine spatial discretization in the single-digit nanometer regime. The FWF project “Very largescale distributed micromagnetic research tools” aims to push the boundaries of micromagnetic simulations towards larger systems by introducing recent algorithms and technologies to numerical micromagnetics which are particularly suited for distributed systems and novel hardware.

The PhD project

The aim of this PhD project is the develop- ment and implementation of a novel nodal finite- difference approach for micromagnetics that will combine the benefits of the finite-element method and the finite-difference method. Namely, this hybrid method will allow for a rigorous descrip- tion of multiphase magnets by a variational ap- proach related to finite elements while making use of fast convolution techniques known from finite- differnece micromagnetics. State-of the art tensor libraries such as TensorFlow will be used in or- der to implement the novel approach, enabling the use of modern distributed hardware such as multi GPU machines.

Your skills

• Master’s degree in physics, mathematics or computer science
• Very good coding skills
• Basic knowledge in numerical algorithms such as finite-differences, FFT
• Experience with machine learning frameworks such as TensorFlow is a plus

Our research group

Our group at the Faculty of Physics of the University of Vienna is dedicated to theoretical and experi- mental investigation of functional materials of any kind. A strong focus of our group is on computational micromagnetics ranging from the development of numerical algorithms to the application of magnetic simulations for the development of novel magnetic storage and sensing devices.

How to apply

If you are interested in this PhD project please send your application documents (motivational letter, CV, GitHub profile, ...) to Claas Abert (claas.abert(at)univie.ac.at).