PhD position in Micromagnetic Modelling of New Permanent Magnets

fredag 18 jun 21

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Frist 1. august 2021
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Do you want to contribute to a sustainable future? At DTU Energy our research is targeting exactly this, and we are looking for a new PhD student.

In 2020 we celebrated the discovery of electromagnetism by H.C. Ørsted 200 years ago. Since then, magnets have become omni-present in our daily life, finding their way into everything from the loudspeaker and vibrator in our phones to generators in wind turbines and power plants. The stronger magnets today contain rare-earth metals, which are associated with uncertain supply chains, pollution due to mining, and geopolitical issues. Therefore, research on alternative rare-earth free magnets are a top priority and paramount for green and sustainable growth.

In the project from the Independent Research Fund Denmark, which this PhD position is a part of, we will investigate enhancing the magnetic performance of rare-earth free permanent magnets through nanoscale crystallite orientation as well as inspiration from interstellar chemistry. Our partners at Aarhus University will work on the chemistry of the magnets and your part in the project will be to investigate our rare-earth free magnets using our state-of-the-art open-source micromagnetic model, MagTense, and to develop this model even further.

You will both model how the magnetization and magnetic field varies within the individual rare-earth free magnetic particles but also within packings of particles, as we know that this crucially affects magnetic properties. The questions we are trying to answer are the following:

  • How does the magnetic field inside a particle depend on the geometry of that particle?
  • What is the best geometry, e.g. aspect ratio, of magnetic particles for the collective behavior to have the overall best magnetic properties?
  • Can both magnetic field strength (remanence) and magnetic field resistance (coercivity) be optimized at the same time by tuning the particle shape?

In collaboration with a PhD-student at Aarhus University you will get to validate your modeling results against experiments. You will have the opportunity to suggest new experiments and compare the resulting measured experimental properties with your modeling results and thus together realize the optimal magnet. You will also have the opportunity to carry out measurements of magnetic properties yourself, using our unique magnetic measuring systems.

Qualified applicants must have:

  • You must have a two-year master's degree (120 ECTS points) in physics, astronomy, mathematics, engineering, chemistry or similar.
  • Experience with static magnetism (magnetostatics) as gained e.g. from a physics courses in electromagnetism.
  • Experience with modelling techniques and preferably some experience with numerical approximations.
  • Experience with Matlab, Python and potentially Fortran.
  • Ability to work independently, to plan and carry out complicated tasks, and to be a part of a large, dynamic group.
  • Good communication skills in English, both written and spoken.

Approval and Enrolment
The scholarship for the PhD degree is subject to academic approval, and the candidate will be enrolled in one of the general degree programmes at DTU. For information about our enrolment requirements and the general planning of the PhD study programme, please see the DTU PhD Guide.

We offer
DTU is a leading technical university globally recognized for the excellence of its research, education, innovation and scientific advice. We offer a rewarding and challenging job in an international environment. We strive for academic excellence in an environment characterized by collegial respect and academic freedom tempered by responsibility.

Salary and appointment terms
The appointment will be based on the collective agreement with the Danish Confederation of Professional Associations. The allowance will be agreed upon with the relevant union. The period of employment is 3 years.

The expected starting date is the autumn/winter of 2021. We are flexible with the exact starting time.

You can read more about career paths at DTU here.

Further information
Please contact Professor Rasmus Bjørk, +45 46 77 58 95, or Senior Researcher Christian Bahl, +45 21 32 54 92,  

Please do not send applications to this e-mail address, instead apply online as described below.

You can read more about DTU Energy at

If you are applying from abroad, you may find useful information on working in Denmark and at DTU at DTU – Moving to Denmark.

Application procedure
Your complete online application must be submitted no later than 1 August Danish time).

Applications must be submitted as one pdf file containing all materials to be given consideration. To apply, please open the link "Apply online," fill in the online application form, and attach all your materials in English in one pdf file. The file must include:

  • A letter motivating the application (cover letter)
  • Curriculum vitae
  • Grade transcripts
  • Excel sheet with translation of grades to the Danish grading system (see guidelines and excel spreadsheet here)

You may apply prior to obtainning your master's degree but cannot begin before having received it.

All interested candidates irrespective of age, gender, race, disability, religion or ethnic background are encouraged to apply.

DTU Energy
The Department of Energy Conversion and Storage is focusing on functional materials and their application in sustainable energy technology. Our research areas include fuel cells, electrolysis, solar cells, electromechanical converters, sustainable synthetic fuels, and batteries. The Department, which has more than 200 employees, was founded in 2012. Additional information about the department can be found on

Technology for people
DTU develops technology for people. With our international elite research and study programmes, we are helping to create a better world and to solve the global challenges formulated in the UN’s 17 Sustainable Development Goals. Hans Christian Ørsted founded DTU in 1829 with a clear vision to develop and create value using science and engineering to benefit society. That vision lives on today. DTU has 12,900 students and 6,000 employees. We work in an international atmosphere and have an inclusive, evolving, and informal working environment. DTU has campuses in all parts of Denmark and in Greenland, and we collaborate with the best universities around the world.