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PhD Position In Nanoscience: Molecular Quantum Materials


Project Description

Single molecule magnets (SMMs), made of metal ions stabilized by appropriate organic ligands, can be considered as ideal quantum objects bearing atomically controlled properties. They participate in promising strategies of encoding information in single, all identical, units. In particular SMM are showing interesting quantum effects that makes them suitable candidates in supramolecular quantum computing and magnetic data storage [1,2]. The ability to assemble weakly interacting subsystems is a prerequisite for implementing quantum information processing through their controlled entanglement. In this project we would like to explore this approach by means of surface confined lanthanide complexes [2,3]. The mastering of such qubit interactions is achieved by means of the tip of a scanning tunneling microscope (STM) that allows manipulating individual molecules to build cluster [3].

For this project a dedicated low temperature (LT-STM) equipped with a vector magnetic field will be used to accurately address the local electronic properties of single molecules on surfaces. Spin excitation spectroscopy and Kondo mapping at every point in space will be the main (but not exclusive) tools to follow their magnetic behavior. The measurements are carried out in ultrahigh vacuum to ensure a clean and reproducible experimental environment. Relevant work by the members of the team can be found in Refs. 2-4.

The candidate will participate in an ambitious multi-partner project. The molecules are synthesized in the group of Prof. M. Ruben (Karlsruhe Institute für Technologie). Theoretical support is provided by the team of Dr. M. Boero (IPCMS) and Dr. K. Fink (INT Karlsruhe).

Keywords: Molecular electronics, Quantum materials, Scanning tunneling microscopy/ spectroscopy.

Candidate’s profile: We are looking for a highly motivated candidate with a scientific master degree. He/she should have a background in physics and a good knowledge in material science, taste and skills for experimental work. The candidate should be fluent in scientific English. Interested candidates are invited to send a CV, a motivation letter, grades and ranking along with two supporting letters to:

Funding Notes

3 year Ph.D. funding (France-German project).
Université de Strasbourg, IPCMS and Karlsruhe Institut für Technologie, INT

References

[1] M.N. Leuenberger, D. Loss, Nature , 401, 789 (2001).
[2] [2] S. Thiele, F. Balestro, R. Ballou, S. Klyatskaja, M. Ruben, W. Wernsdorfer, Science, 344, 1135 2014).
[3] A. Amokrane, S. Klyatskaya, M. Boero, M. Ruben, J.P. Bucher, ACS Nano, 11, 10750 (2017).
[4] S. Kezilebieke, A. Amokrane, M. Abel, J.P. Bucher, J. Phys. Chem. Lett. 5, 3175, (2014) & Nano Research 7, 888 (2014).

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