Fyzikální ústav Akademie věd ČR

Semináře

Čtvrtek, 10.03.2016 10:00 - 11:30

Jörg Wunderlich (FZÚ AV ČR)

Although antiferromagnets have been known for about eighty years, their (spin) transport properties have only attracted interest lately. This is because it was believed to be difficult to manipulate and to detect the magnetic state of antiferromagnets. However, large magnitude anisotropic magneto-resistance effects in the tunnelling transport regime have indicated the possibility to detect antiferromagnetic order electrically. Apart from spin transfer torque (STT), also relativistic current induced spin-orbit torque (SOT) effects due to the inverse spin Galvanic effect and/or the Spin Hall effect can be used to manipulate magnetic moments.
In my talk I will discuss potentially large magnitude magneto resistance and current induced SOT effects able to detect and to manipulate potentially fast and magnetic field independent the staggered magnetic order of antiferromagnets.

Úterý, 15.03.2016 10:00 - 11:00

M. M. Ugeda (Department of Physics, University of California, Berkeley, CA 94720, USA)

Transition metal dichalcogenides (TMDs) are subject to effects of reduced dimensionality when thinned down from bulk to the single-layer limit, which may impact their fundamental properties and overall response. In this talk I will illustrate the influence of such effects on the electronic and optoelectronic properties of MBE-grown 2D TMD semiconductors and metals.

Čtvrtek, 17.03.2016 10:00 - 11:00

Vincent Pichot (NS3E « Nanomatériaux pour les Systèmes Sous Sollicitations Extrêmes » UMR CNRS-ISL no 3208, French-German Research Institute of Saint-Louis, 5 rue du général Cassagnou 68301 Saint-Louis, France)

The NS3E laboratory synthesizes detonation nanodiamonds by detonation of explosives since many years. These very small nanoparticles (i.e. 5 nm) can be used for a wide variety of applications in many fields such as sensing, medicine, pyrotechnics, optics.

Čtvrtek, 17.03.2016 10:00 - 11:00

Xavi Marti (Institute of Physics ASCR Cukrovarnická 10, 162 53 Praha 6, Czech Republic)

Abstrakt:

Spintronics has changed the world. Yet many of us would confine its merits only to magnetic data storage. But there is much more room up there: spintronics lays behind many more—and bigger—aspects of our lives. For instance, many processes in automated assembly lines in industry relay on spintronics. And the beauty of it is that the principles that underpin the magnetic read-out in hard drives mimic the way in which one engineer would detect a tuna can before stopping it in order to fill it or label it.

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