Post-doctoral fellow in Physics Nanoscale X-ray diffraction for ferroelectric domain dynamics

Lund University


September 29, 2022


Lund university, Faculty of scince, Department of physics

Lund University was founded in 1666 and is repeatedly ranked among the world's top 100 universities. The University has around 44 000 students and more than 8 000 staff based in Lund, Helsingborg and Malmö. We are united in our efforts to understand, explain and improve our world and the human condition.

Lund University welcomes applicants with diverse backgrounds and experiences. We regard gender equality and diversity as a strength and an asset.

The Division of Synchrotron Radiation Physics (www. is a part of the Department of Physics and has more than 50 employees. The focus of the research is experimental studies of electronic, structural and chemical properties of materials, accelerators for Synchrotron radiation and instruments and methods for Synchrotron radiation. At the Division we use and develop a wide range of Synchrotron- and lab-based techniques, such as X-ray photoelectron spectroscopy/imaging and X-ray diffraction/imaging. We also host one of Sweden's largest facilities for scanning probe microscopy. We are additionally engaged in the development of the MAX IV Laboratory in the fields of beamlines, experimental stations, techniques for Synchrotron radiation and the accelerator systems.

Subject description The postdoc project will develop nanoscale X-ray diffraction (XRD) methods to image domain dynamics in ferroelectric materials. These are characterized by the existence of domains in which there is an aligned polarization, similar to the aligned magnetic domains in ferromagnetics. Ferroelectric materials are used and developed for a wide range of applications, such as memories and computations. The ferroelectric behavior is largely governed by the dynamics of the domains, which have a size in the range of tens of nm to several micron.

In recent years, the spatial resolution of nanoscale X-ray diffraction methods has become sufficient to image individual domains, giving a unique possibility to study their dynamics for instance during switching. The NanoMAX beamline at the MAX IV synchrotron, the world's first fourth-generation synchrotron, offers a unique combination of high flux and spatial resolution with excellent facilities for in situ studies.

The position is a collaboration between the NanoLund, the division of Synchrotron Radiation Research (SRR) and the NanoMAX beamline at MAX IV. The postdoc will spend 50% of the time at NanoLund & SRR performing research within the project, and 50% at NanoMAX working with beamline development and user support.

The postdoc will collaborate with various groups synthesizing ferroelectric materials and devices, primarily within the NanoLund research center. In particular, the postdoc will develop methods and beamline instrumentation for in situ imaging of the ferroelectric domains during switching. The candidate will have significant freedom to influence the direction of the project, and is expected to take initiatives and drive the project quite independently.

Work duties The main duties involved in a post-doctoral posistion is to conduct research. Teaching may also be included, but up to no more than 20% of working hours. The position shall include the opportunity for three weeks of training in higher education teaching and learning.

Qualification requirements Appointment to a post-doctoral position requires that the applicant has a PhD, or an international degree deemed equivalent to a PhD, within the subject of the position, completed no more than three years before the date of employment decision. Under special circumstances, the doctoral degree can have been completed earlier. The subject of the doctoral degree should be in physics or equivalent. The PhD degree does not have to be completed at the time of application.

Additional requirements:

  • Very good spoken and written proficiency in English.
  • Assessment criteria and other qualifications This is a career development position primarily focused on research. The position is intended as an initial step in a career, and the assessment of the applicants will primarily be based on their research qualifications and potential as researchers.

    Particular emphasis will be placed on research skills within the subject.

    For appointments to a post-doctoral position, the following shall form the assessment criteria:

  • A good ability to develop and conduct high quality research.
  • Teaching skills, or related experience, such as mentoring, supervision, or training in equipment use.
  • For the present position, extensive experience in X-ray diffraction is essential. Experience with programming and data analysis is also important.

    Knowledge of nanoscale X-ray methods and ferroic materials is advantageous, but not a strict requirement.

    Additional assessment criteria are (not in order of importance):

  • Experience with ferroelectrics or other ferroic materials
  • Experience with nanoscale and coherent X-ray methods
  • Experience with other X-ray methods
  • Consideration will also be given to good collaborative skills, drive and independence, and how the applicant's experience and skills complement and strengthen ongoing research within the department, and how they stand to contribute to its future development.

    Terms of employment This is a full-time, fixed-term employment of a maximum of 3 years. The period of employment is determined in accordance with the agreement “Avtal om tidsbegränsad anställning som postdoktor” (“Agreement on fixed-term employment as a post-doctoral fellow”) between Lund University, SACO-S and OFR/S, dated 1st February 2022.

    Instructions on how to apply

    Applications shall be written in English and be compiled into a PDF-file containing:

  • résumé/CV, including a list of publications,
  • a general description of past research and future research interests (no more than three pages),
  • contact information of at least two references,
  • copy of the doctoral degree certificate, and other certificates/grades that you wish to be considered.
  • The Faculty of Science conducts research and education within Biology, Astronomy, Physics, Geosciences, Chemistry, Mathematics and Environmental Science. The Faculty is organized into nine departments, gathered in the northern campus area. The Faculty has approximately 1500 students, 330 PhD students and 700 employees.

    The Department of Physics is one of Lund University's largest departments with approximately 400 employees. The department is shared between the Faculty of Science and Faculty of Engineering. At the department there are seven research divisions and a number of major research centra. The research at the department covers a wide range of modern physics. www.

    We kindly decline all sales and marketing contacts.

    Type of employment Temporary position longer than 6 months

    Contract type Full time First day of employment As soon as possible Salary Monthly salary Number of positions 1 Working hours 100 City Lund County Skåne län Country Sweden Reference number PA2022/2800 Contact

  • Jesper Wallentin, +46462220469
  • Union representative

  • OFR/ST:Fackförbundet ST:s kansli, 046-2229362
  • SACO:Saco-s-rådet vid Lunds universitet, 046-2229364
  • Published 08.Sep.2022 Last application date 29.Sep.2022 11:59 PM CEST

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