Fritz-Haber-Institut der Max-Planck-Gesellschaft  

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Positions

at the FHI are available either as employment contracts or as stipends in the framework of the FHI guest program

Physikalische Chemie
The Fritz-Haber-Institut (Physikalische Chemie) offers a
  PhD
position(s).

The Dynamics of Correlated Materials research group at the Fritz-Haber-Institute is offering a PhD position. The group’s research focusses on the ultrafast electron dynamics after optical excitation in strongly correlated systems with their manifold of competing broken-symmetry ground states such as high-temperature superconductivity, magnetic orders or density wave formation. The group operates a world-leading high-repetition rate extreme ultraviolet (XUV) time- and angle-resolved photoelectron spectroscopy (trARPES) setup.

This project is focused on the dynamics in strongly correlated antiferromagnetic systems. The successful candidate will investigate the interplay of electronic correlations and magnetic ordering phenomena in various classes of antiferromagnetic systems, which are of strong relevance for future spintronic applications. These systems will be studied by femtosecond trARPES experiments using the XUV trARPES setup, as well as static ARPES measurements using a lab-based high-resolution ARPES setup. The sample preparation will involve in-situ growth in ultrahigh vacuum systems. In addition, static and time-resolved resonant x-ray diffraction experiments at synchrotron and/or free-electron laser facilities are planned.

Applicants should hold a Diploma or Master degree in Physics or Material Sciences, and should have a strong background and interest in at least one of the following areas:
- femtosecond time-resolved spectroscopies
- photoelectron spectroscopy
- in-situ growth of epitaxial metal and oxide films in ultrahigh-vacuum
- physics of strongly correlated materials

Preference will be given to handicapped applicants provided equal suitability. Applications (Motivation letter, CV, list of publications, description of previous work, contact details of academic references, etc.) shall be sent to:

Dr. Laurenz Rettig
Fritz Haber Institute of the Max Planck Society
Department of Physical Chemistry
Faradayweg 4-6
D-13195 Berlin Germany
rettig@fhi-berlin.mpg.de (rettig@fhi-berlin.mpg.de)
http://www.fhi-berlin.mpg.de/pc/docm/welcome.html

Physikalische Chemie
The Fritz-Haber-Institut (Physikalische Chemie) offers a
  PhD
position(s).

The Dynamics of Correlated Materials research group at the Fritz-Haber-Institute is offering a PhD position. The group’s research focusses on the ultrafast electron dynamics after optical excitation in strongly correlated systems with their manifold of competing broken-symmetry ground states such as high-temperature superconductivity, magnetic orders or density wave formation. The group operates a world-leading high-repetition rate extreme ultraviolet (XUV) time- and angle-resolved photoelectron spectroscopy (trARPES) setup.

This project aims at the development of a narrow-band high-repetition rate high-harmonics generation (HHG) XUV light source for time-resolved ARPES experiments in unconventional superconductors. The successful applicant will construct and build a novel narrow-band XUV source for trARPES with high energy resolution, which will be complementary to the existing HHG setup that is optimized for high temporal resolution. This HHG source will be then used to investigate the ultrafast dynamics in strongly correlated materials exhibiting ordering phenomena at small energy scales such as high-temperature superconducting Cuprates and Fe pnictides, antiferromagnetic or heavy-Fermion Kondo systems.

Applicants should hold a Diploma or Master degree in Physics or Material Sciences, and should have a strong background and interest in at least one of the following areas:
- ultrafast laser development and technology
- high-harmonic generation
- femtosecond time-resolved spectroscopies
- photoelectron spectroscopy

Preference will be given to handicapped applicants provided equal suitability. Applications (Motivation letter, CV, list of publications, description of previous work, contact details of academic references, etc.) shall be sent to:

Dr. Laurenz Rettig
Fritz Haber Institute of the Max Planck Society
Department of Physical Chemistry
Faradayweg 4-6
D-13195 Berlin Germany
rettig@fhi-berlin.mpg.de (rettig@fhi-berlin.mpg.de)
http://www.fhi-berlin.mpg.de/pc/docm/welcome.html

Anorganische Chemie
The Fritz-Haber-Institut (Anorganische Chemie) offers a
  Postdoc
position(s).

Postdoc to develop the charge carrier characterization of thermally activated catalysts using microwave based techniques, from the instrumentation to the data analysis.

The electrochemistry group of the inorganic chemistry department of the Fritz-Haber-Institute in Berlin is looking to fill a postdoctoral position at the earliest possible date. The group performs fundamental and applied experimental research within three research areas, namely energy storage, water splitting and charge transport characterization across interfaces.

The group has developed several custom made instrumentation based on the Microwave Cavity Perturbation Techniques (MCPT) and Microwave Hall Effect (MHE) dedicated to characterize in-situ and contactless the dielectric properties of materials such as thermally activated catalysts, see as example: Angew. Chem. Int. Ed., 2015, 54: 2922-2926 or J. Phys. Chem. C, 2013, 117 (51), 26988–26997. The successful candidate will be nested within the charge transport and characterization team and will be involve in the further development, from the instrumentation to the data analysis, of the custom made MCPT and MHE instruments. Ideally, the applicant should have a background in semiconductor physics or solid state chemistry and proven experience in ESR and/or microwave related technology. The candidate must have good English skills and have an autonomous and proactive working style. Further the applicant must have the ability to work in a team as well as coordinating people with different professional and cultural backgrounds. The candidate is encourage to propose and lead new projects in connection with the group´s “area of expertise”. We genuinely encourage female candidates to apply, which will be preferred in case of equal qualification. Also, if equally qualified, preference will be given to disabled applicants.

Please send your CV, motivation letter and recommendation letter(s) to Sébastien Cap (sebastiencap@fhi-berlin.mpg.de) with the subject “Postdoctoral position”.

Sébastien Cap, Dr.
Fritz-Haber-Institut der Max-Planck-Gesellschaft (MPG/MPI)
Faradayweg 4-6
14195 Berlin/Germany
http://www.fhi-berlin.mpg.de/acnew/groups/electrochemistry/index.html

Physikalische Chemie
The Fritz-Haber-Institut (Physikalische Chemie) offers a
  Master Thesis: Ultrafast Spintronics using Terahertz Spectroscopy
position(s).

What is terahertz? Terahertz (THz) electromagnetic waves have frequencies of about 10^12 Hz and photon energies of 1-100 meV. THz pulses are perfectly suited as probe for numerous excitations in all states of matter, such as phonons, magnons, excitons, or rotations and vibrations of molecules and many more.

Project: Using ultrashort (10-15 s) light pulses we want to manipulate and control electron spins in solids. To this end, we make use of THz emission spectroscopy to monitor the spin dynamics inside magnetic / nonmagnetic multilayers. This approach opens a whole new playground addressing both: fundamental physics and relevant applications.

Contact: Tom Seifert (seifert@fhi-berlin.mpg.de)

Website: http://www.fhi-berlin.mpg.de/pc/KAMPFRATH/KampfrathAG_positions.html

Molekülphysik
The Fritz-Haber-Institut (Molekülphysik) offers a
  Diploma/Masters and PhD
position(s).

A diploma, masters and Ph.D. position is available in the Molecular Physics department at the Fritz Haber Institute of the Max Planck Society (FHI) in Berlin, Germany. The project is focussed on the analysis of protein glycosylation using the promising technique of ion mobility spectrometry.

Glycosylation is one of the most abundant types of post-translational modifications found in proteins. The involved oligosaccharides are termed glycans and usually exhibit a branched and stereochemically complex structure. Currently, glycans are typically characterized using mass spectrometry-based techniques (MS). Measuring the molecular weight of a sugar, however, immediately poses a fundamental problem: entire classes of the constituting monosaccharide building blocks exhibit an identical atomic composition and, consequently, also an identical mass. Therefore, carbohydrate MS data can be highly ambiguous and often it is simply not possible to clearly assign a particular molecular structure. Within this project a novel, interdisciplinary approach to characterize complex sugars by incorporating ion mobility spectrometry as an additional gas-phase separation dimension should be developed and applied. Experimentally, this involves a variety of biochemical and bioanalytical techniques such as the enzymatic cleavage of the sugar form the investigated gycoprotein, the instrumental analysis using a commercially available, hybrid ion mobility mass spectrometer as well as the analysis of complex datasets using in-house developed software tools.

The applicant should have a background in biochemistry, (bio)organic chemistry and/or analytical chemistry. Basic experience with chromatographic separation techniques as well as mass spectrometry-based techniques would be helpful, but is not required.

Please contact:
Prof. Dr. Kevin Pagel (pagel@fhi-berlin.mpg.de)
for further information.

Website
Fritz-Haber-Institut: http://www.fhi-berlin.mpg.de/mp

Molekülphysik
The Fritz-Haber-Institut (Molekülphysik) offers a
  Ph.D. and Postdoctoral
position(s).

A Ph.D. and/or postdoctoral position is available in the molecular physics department at the Fritz-Haber-Institut der Max-Planck-Gesellschaft (FHI) in Berlin, Germany. The research involves spectroscopic studies of mass/charge selected (bio-)molecules using the FHI infrared free electron laser. The data is used to gain fundamental insight into the structure, and function of biological molecules and their aggregates. In one experiment, those (bio-)molecular ions are incorporated in ultracold liquid helium droplets, which allows for measuring IR spectra at high resolution (see for example Phys.Chem.Chem.Phys., 17, 21902 (2015)). In a different experiment, in addition to mass/charge selection, conformer selection is performed using ion mobility methods. This allows for the recording of IR spectra of species that have the same mass/charge ratio, but differ in conformation, protonation site or aggregation state (see for example J. Am. Chem. Soc., 137, 4236 (2015)).

Requirements:
- degree in physical chemistry, experimental physics or related fields
- experience in laser spectroscopy on gas phase molecules, gas-phase molecular beam methods and/or mass-spectrometry (required for the post-doctoral and desired for the graduate student position)

Please arrange for two letters of recommendation together with the application.

Please contact Gert von Helden, Ph.D., (helden@fhi-berlin.mpg.de) for further information.

Chemische Physik
The Fritz-Haber-Institut (Chemische Physik) offers a
  PhD
position(s).

"Low-Temperature Single Crystal Microcalorimetry/Molecular Beam Techniques for Probing Kinetics and Thermodynamics of Gas-Surface Interactions"

The project will focus on the investigation of interaction of gas phase molecules with well-defined nanostructured model supported catalysts. For this we apply a unique combination of low-temperature single crystal calorimetry and molecular beam methods under clean ultra-high vacuum conditions. The strength of interaction of gas phase molecules on surfaces is an important parameter governing the catalytic activity of heterogeneous catalysts. In this project, we focus on finding the correlations between the microscopic structure of the catalyst, its reactivity and heats of formation of the adsorbed reactants and the key reaction intermediates. As a catalyst, metal nanoparticles supported on planar thin oxide films prepared under well-defined UHV conditions are employed, whose structural properties can be tuned in a highly controlled manner.

A university degree in physics or physical chemistry is required. The position is immediately available. Applicants should submit (via email) an application letter stating their motivation in this work together with a detailed CV, a copy of the masters/diploma certificate (including grades), two names of possible reviewers, and a publication list.

The Max Planck Society wishes to increase the participation of women in its research activities. Therefore applications from women are particularly welcome. Handicapped individuals are especially encouraged to apply. Their applications will be preferred in case of equivalent suitability.

Contact:
Dr. Swetlana Schauermann
E-Mail: schauermann@fhi-berlin.mpg.de
Molekülphysik
The Fritz-Haber-Institut (Molekülphysik) offers a
  PhD
position(s).

The Research Group "Interactions of molecules with fields" headed by Bretislav Friedrich has a PhD position available in theoretical molecular physics.

Topic: Supersymmetry and entanglement of polar paramagnetic molecules subject to combined electric, magnetic, and optical fields.

Description: Polar paramagnetic molecules are of potential importance for many-body physics simulations, studies of crossings of eigenenergy levels, and quantum information and computing. Based on our previous work, we plan to study the supersymmetry and entanglement of polar paramagnetic molecules in the triple-combination of electric, magnetic and optical fields. The triple field combination not only offers a high efficiency and flexibility in manipulating molecular rotation and translation but is also of fundamental theoretical interest per se, as monodromy and quantum chaos lurk behind the combined-field effects. The research will deal with key aspects of the interactions of polar paramagnetic molecules with and in the combined fields: their supersymmetry and entanglement. While supersymmetry provides an in-depth insight into the nature of a system and may yield analytic solutions for a class of its eigenstates, entanglement sheds light on the nature of the many-body interactions that arise within the quantum system. For more, see http://www.fhi-berlin.mpg.de/mp/friedrich/program1.html.

Funding: The position is funded by a grant from the Deutsche Forschungsgemeinschaft.

The Max Planck Society aims to increase the participation of women in research. Therefore, applications by women are particularly welcome. Handicapped individuals are especially encouraged to apply. These applicants will be given priority in the case of same qualifications.

For further information, please contact:
Prof. Dr. Bretislav Friedrich (bretislav.friedrich@fhi-berlin.mpg.de).

Website:
http://www.fhi-berlin.mpg.de/mp/friedrich/
Theorie
The Fritz-Haber-Institut (Theorie) offers a
  students and post-docs
position(s).

Every year several people are leaving the theory department and several new people are joining.

Open positions are typically not announced. Anyone interested in theoretical condensed matter physics, materials science, chemical physics, or physical chemistry who likes to join the group should send an application to Matthias Scheffler.

The main fields studied in the Theory Department are described under Research Activities, but it should be noted that this does not provide a complete decription, and new ideas are always welcome.


Impressum • © FHI
Tue, 6. Oct 2015
Address: Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
Tel: +49 30 8413 30, Fax: +49 30 8413 3155, E-Mail: fhi@fhi-berlin.mpg.de