Research Assistant*in (m/f/d)

Freie Uni­ver­si­tät Ber­lin

Fachbereich Physik - Institut für Experimentalphysik AG Weinelt

The AG Weinelt studies femtomagnetism initiated by ultrashort optical laser pulses. We unravel processes like ultrafast demagnetization and magnetic switching by following electronic scattering, spin transport, magnon excitation and surface dynamics with complemental experimental methods. We have a strong background and reputation in state-selective and spin-sensitive time- and angle-resolved photoemission techniques supported by the DFG. Beyond our laboratory-based research, we lead 3 BMBF projects establishing a new experimental infrastructure around the FemtoSlicing facility of the Synchrotron Source BESSY II (Helmholtz-Zentrum Berlin). With the new state-of-the-art experimental end station for time-resolved X-ray-scattering and absorption we study state- and element specific magnetization dynamics in 3d transition and 4f rare earth metals as well as in their compounds.

Research assistant (praedoc) (m/f/d)

with 75% part-time job limited to 4 years salary grade (Entgeltgruppe) 13 TV-L FU reference code: PhD_BerLUXS

Tasks

Your area of responsibility involves a project about ultrafast electronic excitations and their role for magnetization dynamics funded as FU Berlin core support for the Collaborative Research Center (CRC) on Ultrafast Spin Dynamics. Within close cooperation with other members of the AG Weinelt and Helmholtz-Zentrum Berlin you will help to explore the microscopic processes behind electron, lattice, and spin interactions in 3d and 4f metals. During this, you will perform X-ray studies at large scale facilities, like BESSY II, FLASH or EuXFEL. Within the project period the new high-energy-resolution beamline next to the existing Slicing branch at BESSY II goes into operation. Here, femtosecond resolved X-ray absorption experiments will be feasible, allowing for simultaneous detection of magnetic and electronic structure dynamics. You are willing to work in a team of PhD students/postdocs from FU Berlin and Helmholtz-Zentrum Berlin as well as in collaboration with our collegues from DESY Hamburg to assume and accept responsibility. For further qualification you’ll be given the opportunity to undertake doctoral research and are expected to participate in the Graduate School of the CRC Ultrafast Spin Dynamics. This position also includes collaboration in teaching.

Requirements

Requirements:

Completed university studies with a Master degree preferentially in physics.

Desirable:

Master or diploma work in experimental physics; experience with ultrafast spectroscopy at large scale facilities, experience in X-ray absorption spectroscopy; experience with ultra-high-vacuum and liquid gas cooled experiments; experience with magnetization dynamics; experience in molecular beam epitaxy and sputter deposition.

How to apply

Applications should be sent by e-mail, together with significant documents, indicating the reference code, no later than December 16th, 2024, in PDF format (preferably as one document) to Prof. Dr. Martin Weinelt: w******t@p*****k.fu-berlin.de or postal to

Freie Universität Berlin Fachbereich Physik Institut für Experimentalphysik AG Weinelt Prof. Dr. Martin Weinelt Arnimallee 14 14195 Berlin (Dahlem)

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Freie Universität Berlin is an equal opportunity employer.

Facts Published 26.11.2024 Category Graduate position, Research assistant Location Germany, Berlin, Berlin Area of responsibility Research, Teaching (university), Natural sciences, Physics Start date (earliest) Earliest possible Duration befristet bis zu 4 Jahre Full/Part-time 75% part-time job Remuneration Entgeltgruppe 13 TV-L FU Working language and expected level German (Fluent in speech and writing)

Homepage https://www.fu-berlin.de/ Requirements Qualification Completed university studies with a Master degree preferentially in physics. Field of study Natural sciences and mathematics, Physics Contact Reference number PhD_BerLUXS Contact person Prof. Dr. Martin Weinelt Apply Application deadline 16.12.2024 Reference number PhD_BerLUXS By post

Freie Universität Berlin Fachbereich Physik Institut für Experimentalphysik AG Weinelt Herrn Prof. Dr. Martin Weinelt Arnimallee 14 14195 Berlin (Dahlem)

By email w******t@p*****k.fu-berlin.de