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Prof. Lino Pereira
https://www.kuleuven.be/wieiswie/en/person/00081327
The role of band topology in electronic phenomena has become one of the main topical subjects in condensed matter physics. Among a wealth of intriguing new phenomena, several classes of materials have emerged including topological insulators, Dirac semimetals and Weyl semimetals. These materials are characterized by a non-trivial topology of their electronic band structure. This project deals with the interplay between magnetism and band topology in magnetic Dirac and Weyl semimetals, investigated using unique experimental approaches in in-house laboratories and international large-scale facilities (e.g. ESRF and CERN).
We are looking for a highly driven candidate, motivated to work in an international research team, in an international environment. Candidates must have a strong background in solid state physics. Proficiency in the English language is also required, as well as good communication skills, both oral and written.
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Dr. Shengqiang Zhou
Website: www.hzdr.de
http://www.hzdr.de/db/Cms?pNid=2765
1) Modulating complex oxides by ion beams
Binary or ternary oxides always surprise researchers with their complex physical properties governed by the competition between a variety of interactions. They represent a prime example of correlated systems in which a complex interplay between the spin, charge, orbital and lattice degrees of freedom may result in several new physical phenomena with the enormous potential of their technical utility. A new paradigm in this area would be the modification of the lattice strain and the defect engineering by ion beams. This approach not only allows one to gain an unprecedented level of magnetic and electric control of oxides but also broadens the possibility of oxide films towards the up to date mainstream commercial applications.
You task is to prepare oxides by pulsed laser deposition, to perform ion irradiation and to measure the magnetic and electrical properties of the processed films.
2) Magnetic 2D materials
Most semiconductors are intrinsically not (ferro)magnetic. The introduction of magnetic orders in semiconductors has great potential in the field of spintronics, where the central theme is the manipulation of both spin and charge degrees of freedom in solid-state systems. 2D materials, including graphene, MoS2, black phosphorus, topological insulators and so on, represent an emerging group of semimetal and semiconductors. Doping non-magnetic 2D materials into (ferro)magnetic ones will provide unprecedented possibilities in both scientific researches and commercial applications
You task is to prepare magnetic 2D materials by either in-situ growth or ex-situ doping by using ion implantation. You can also focus on magnetic, magnetotransport as well as other spintronics-related measurements on the existing samples from group members.
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