Younès Henni, LNCMI Grenoble
I am a PhD student in my final year at the Grenoble high magnetic field laboratory (LNCMI-G). During the three years I spent in our lab, my research topic was mainly focused on the optical properties of the two-dimensional (2D) carbon-based material graphene, under strong magnetic fields.
After a bachelor degree in fundamental physics at the University of Science and technology in Algiers (Algeria), I had the chance to come to France to pursue a Master thesis in condensed matter physics at the University of Strasbourg. In order to complete my Master degree, I applied for an internship of a few months at LNCMI-G for a scientific project focused on the magneto-optical properties of graphene-based heterostructures.
The experiments using the magnetic field facility of our lab hooked me up and I decided to pursue a PhD degree at LNCMI-G. The static magnetic field up to 36 T provided by the resistive magnets at LNCMI-G makes it one of the few labs in the world providing such an opportunity for high-field measurements. During this period, I worked in a very dynamical environment with strong international collaborations.
Our team is composed of highly qualified scientists, each one exploring the physical properties of a specific material, but with many overlaps from which new ideas are always generated. In my PhD, I had the chance to measure some very exciting data from the study of graphene multilayers with a peculiar symmetry of its crystal structure. Our studies focus on measuring the evolution of the electronic excitations as a function of magnetic field. This technique allows us to probe the energy structure of materials and to deduce their physical properties.
My project for the future will be to pursue a postdoc in a foreign country. This for sure will allow me to deepen my knowledge on physics and in material science in general. But one thing is for sure, I am counting on keeping a strong collaboration with the researchers at LNCMI-G and eventually to come again for exciting high magnetic field experiments.
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Tuning the valley and chiral quantum state of Dirac electrons in van der Waals heterostructures
J. R. Wallbank, D. Ghazaryan, A. Misra, Y. Cao, J. S. Tu, B. A. Piot, M. Potemski, S. Pezzini, S. Wiedmann, U. Zeitler, T. L. M. Lane, S. V. Morozov, M. T. Greenaway, L. Eaves, A. K. Geim, V. I. Fal'ko, K. S. Novoselov, A. Mishchenko, Science 355, 575 (2016)
Anomalous magnetothermopower in a metallic frustrated antiferromagnet
S. Arsenijevic, J.-M. Ok, P. Robinson, S. Ghannadzadeh, M. I. Katsnelson, J.-S. Kim and N.E. Hussey, Phys. Rev. Lett. 116, 087202 (2016).
Disorder-induced stabilization of the quantum Hall ferromagnet
B. A. Piot, W. Desrat, D. K. Maude, D. Kazazis, A. Cavanna, and U. Gennser, Phys. Rev. Lett. 116, 106801 (2016).
Magnetoelectric effect and phase transitions in Cuo in external magnetic fields
Z. Wang, N. Qureshi, S. Yasin, A. Mukhin, E. Resouche, S. Zherlitsyn, Y. Skourski, J. Geshev, V. Ivanov, M. Gospodinov, and V. Skumryev, Nature Communications 7, 10295 (2016).
Nanoscale study of polymer dynamics
M. Keshavarz, H. Engelkamp, J. Xu, E. Braeken, M. B. J. Otten, H. Uji-i, E. Schwartz, M. Koepf, A. Vananroye, J. Vermant, R. J. M. Nolte, F. De Schryver, J. C. Maan, J. Hofkens, P. C. M. Christianen, A. E. Rowan. ACS Nano 10, 1434-1441 (2016).
Direct measurement of the exciton binding energy and effective masses for charge carriers in organic–inorganic tri-halide perovskites
A. Miyata, A. Mitioglu, P. Plochocka, O. Portugall, J. Tse-Wei Wang, S. D. Stranks, H. J. Snaith, R. J. Nicholas, Nature Physics 11, 582 (2015).