Postdoc in first-principles modelling and machine-learned force fields for correlated disorder in energy materials

Aarhus Universitet (AU); Aarhus; Hybrid; DKK 420,000 - 540,000; Full time

Benefits offered by this job

Relokationshjælp

Internationale samarbejder

Job summary

Aarhus Universitet søger en postdoktor i beregningsbaseret materialeforskning til CENSEMAT. Stillingen indebærer udvikling af atomistiske modeller og ML-kraftfelter i tæt samarbejde med eksperter ved TU Wien og Aarhus Universitet.

Stillingen kræver erfaring med DFT, ML-modeller, MD og phonon-beregninger samt evne til at arbejde selvstændigt og i tværfaglige teams. Ansættelsen foregår primært i Wien med regelmæssige ophold i Aarhus.

Qualifications

• PhD eller indsendt PhD i relevante felter inden studiestart
• Stærk erfaring med først-principper beregninger af solide stoffer (DFT)
• Erfaring med at generere og vedligeholde databaser til træning af ML-modeller
• Erfaring med MD og lattice-dynamik/phonon beregninger
• Stærk programmerings- og dataanalysekompetence i Linux-økosystemet
• Publikationsaktiviteter passende for karrierefasen
• Flydende skriftlig og mundtlig engelsk
• Evne til selvstændigt projektarbejde og tværfagligt samarbejde
• Kendskab til at være baseret primært i Wien med ophold i Aarhus

Responsibilities

• Generere og kuratere ab initio referencedatabaser til komplekse, defektindholdende og strukturelt uordnede krystalmaterialer.
• Udvikle, træne, evaluere og benchmarke ML-interatomiske kraftfelter til multikomponent energi-materialer.
• Bruge MD og lattice-dynamik til at undersøge lokal uorden, fasestabilitet og struktur-egenskab forhold.
• Undersøge hvordan defects og korreleret uorden påvirker ion-migration og termisk transport.
• Jævnlige kommunikationer med eksperter ved TU Wien og Aarhus Universitet samt bidrag til reproducerbare workflows.

Skills

DFT beregninger

Maskinlærte kraftfelter

Molekylær dynamik

Fermionsberegninger/Phonons

Linux HPC

Python programmering

Faglige publikationer

Engelsk flydende

Selvstændigt arbejde

Tværfagligt samarbejde

Education

PhD i beregningsmaterialeforskning

Tools

Python

Linux baseret HPC

Automatiserede arbejdsflow

Job description

Ansøgningsfrist 30. sep. 23:59 CEST

Forventet start 1. feb.

• Institut for Kemi Langelandsgade 140 8000 Aarhus C
• Tidsbegrænset fuldtidsstilling 1. feb. 2027 - 31. jan. 2029 ID: 168257

The Center for Sustainable Energy Materials (CENSEMAT) at the Department of Chemistry, Aarhus University, invites applications for a 24-month postdoctoral position in computational materials chemistry.

Project description

CENSEMAT investigates crystalline energy materials in which non-random local deviations from the average structure play a decisive role. The postdoc will develop atomistic models that connect local chemical environments and correlated disorder to thermodynamic stability and transport. The research will form a central part of CENSEMAT’s simulation-guided materials programme and will be carried out in close collaboration with experimental researchers working on battery electrodes, thermoelectric materials and ferroelectric relaxors.

Main tasks

• Generate and curate ab initio reference datasets for compositionally complex, defect-containing and structurally disordered crystalline materials.
• Develop, train, validate and benchmark machine-learned interatomic force fields for multicomponent inorganic energy materials.
• Use molecular dynamics, lattice-dynamical methods and statistical sampling to investigate local disorder, phase stability, temperature-dependent behaviour and structure-property relations.
• Investigate how defects and correlated disorder affect ion-migration, lattice vibrations and thermal transport, including calculations of relevant migration pathways and energy barriers.
• Relate simulations to experimentally derived disorder models and data from methods such as total scattering/pair distribution function analysis, diffuse scattering, diffraction, solid-state NMR and electron microscopy.
• Work closely with Professor Georg Madsen and colleagues at TU Wien and with the CENSEMAT team at Aarhus University, including participation in regular shorter research stays in Aarhus.
• Communicate results through peer-reviewed publications, conference contributions and internal CENSEMAT activities, and contribute to the development of shared and reproducible computational workflows.

Your profile

Applicants must hold a PhD, or have submitted a PhD thesis before the starting date, in computational materials science, physics, theoretical or computational chemistry, or a closely related field.

The successful candidate is expected to demonstrate most of the following qualifications:

• Strong documented experience with first-principles calculations of solids using DFT, including the generation and management of ab initio reference databases for training of machine-learned models.
• Documented experience in developing, training, evaluating and validating machine-learned interatomic force fields for atomistic simulations.
• Substantial experience with molecular dynamics and lattice-dynamical or phonon calculations for complex, defect-containing or disordered solids.
• Research experience linking local structure and defects to both lattice thermal transport and ion migration in solids.
• Strong scientific programming skills and experience with Linux-based high-performance computing, automated workflows and reproducible data analysis; proficiency in Python or a comparable language is expected.
• A publication record appropriate to career stage that demonstrates the ability to conduct and communicate independent computational research.
• Fluency in written and spoken English.
• Ability to work independently, take responsibility for complex computational projects and collaborate constructively across theoretical and experimental disciplines.
• Willingness and ability to be based primarily in Vienna while maintaining active participation in CENSEMAT through regular shorter stays in Aarhus and online collaboration.

Experience with one or more of the following will be considered an advantage: active-learning strategies for force-field construction, Green‑Kubo or Boltzmann‑transport methods, defect thermodynamics, and simulation‑experiment integration for disordered materials.

CENSEMAT

The Center for Sustainable Energy Materials (CENSEMAT) is a Center of Excellence funded by the Danish National Research Foundation and based at Aarhus University. Its ambition is to develop sustainable materials for energy conversion and storage by treating correlated structural disorder as a design parameter. The centre brings together expertise in materials synthesis, advanced scattering and spectroscopy, electron microscopy, solid‑state NMR, electrochemistry, property measurements and computational modelling. Its research spans battery electrodes, thermoelectric materials and ferroelectric relaxors.

The computational environment

The postdoc will be scientifically embedded in Professor Georg Madsen’s Research Unit of Theoretical Chemistry at the Institute of Materials Chemistry, TU Wien. The group develops and applies electronic‑structure theory, machine‑learning methods and predictive calculations of defects and transport properties. The position will also be integrated into the wider CENSEMAT research environment at Aarhus University, allowing computed models and predictions to be tested directly against advanced experimental characterisation.

Department of Chemistry

The Department of Chemistry at Aarhus University is a leading European chemistry department with broad research programmes and a highly international environment. CENSEMAT is hosted within the department and provides a collaborative setting for researchers working across materials chemistry, crystallography, spectroscopy, computation and energy science.

The position offers an unusual opportunity to work across two strong and complementary research environments. English is the working language in both groups. The postdoc will have access to scientific mentoring, international networks, high‑performance computing resources and close interaction with experimental materials scientists. CENSEMAT and the TU Wien research group value scientific curiosity, openness, constructive teamwork and a healthy work‑life balance.

All qualified candidates are encouraged to apply regardless of personal background. Aarhus University views equality and diversity as assets and aims to provide an inclusive environment in which each individual can thrive and develop.

Place of work

The successful candidate will be employed by Aarhus University and will be stationed primarily at the Research Unit of Theoretical Chemistry, Institute of Materials Chemistry, TU Wien, Getreidemarkt 9/165, 1060 Vienna, Austria. Regular shorter research stays at the Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark, are an integral part of the position.

Contact information

For further information about the position, please contact: Professor Dorthe Bomholdt Ravnsbæk, Department of Chemistry, Aarhus University: e‑mail, [phone]

Application procedure

Shortlisting is used. This means that after the deadline for applications – and with the assistance from the assessment committee chairman, and the appointment committee if necessary, – the head of department selects the candidates to be evaluated. All applicants will be notified whether or not their applications have been sent to an expert assessment committee for evaluation. The selected applicants will be informed about the composition of the committee, and each applicant is given the opportunity to comment on the part of the assessment that concerns him/her self.

Formalities and salary range

Natural Sciences refers to the Ministerial Order on the Appointment of Academic Staff at Danish Universities under the Danish Ministry of Science, Technology and Innovation.

Appointment shall be in accordance with the collective labour agreement between the Danish Ministry of Taxation and the Danish Confederation of Professional Associations. Further information on qualification requirements and job content may be found in the Memorandum on Job Structure for Academic Staff at Danish Universities.

Salary and terms as agreed between the Danish Ministry of Taxation and the Confederation of Professional Unions at basic salary steps 4-8.

Aarhus University’s ambition is to be an attractive and inspiring workplace for all and to foster a culture in which each individual has opportunities to thrive, achieve and develop. We view equality and diversity as assets, and we welcome all applicants.

Research activities will be evaluated in relation to actual research time. Thus, we encourage applicants to specify periods of leave without research activities, in order to be able to subtract these periods from the span of the scientific career during the evaluation of scientific productivity.

Aarhus University offers a broad variety of services for international researchers and accompanying families, including relocation service and career counselling to expat partners.

Aarhus University also offers a Junior Researcher Development Programme targeted at career development for postdocs at AU.

At the Faculty of Natural Science at Aarhus University, we strive to support our scientific staff in their career development. We focus on competency development and career clarification and want to make your opportunities transparent. On our website, you can find information on all types of scientific positions, as well as the entry criteria we use when assessing candidates. You can also read more about how we can assist you in your career planning and development.

The application must be submitted via Aarhus University’s recruitment system, which can be accessed under the job advertisement on Aarhus University’s website.

Spørgsmål til stillingen ?

Dorthe Ravnsbæk Professor, Institut for Kemi [phone] e‑mail

Spørgsmål til ansøgning og proces ?

Administrationscenter Nat-Tech - Nat-Tech HR [phone] e‑mail