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[Fizinfo] Szilárd-kollokvium (kedd 14:30), Mostovoy a skyrmionokról

From: Balazs Dora <dora.balazs AT ttk.bme.hu>
To: fizinfo AT lists.kfki.hu
Subject: [Fizinfo] Szilárd-kollokvium (kedd 14:30), Mostovoy a skyrmionokról
Date: Wed, 23 Mar 2022 15:01:59 +0100
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                  MEGHÍVÓ

   a Szilárd Leó Kollokvium előadására:

                Maxim Mostovoy
                (Univ. Gröningen)

/
/
/"Novel topological defects in frustrated and chiral magnets/"

Kivonat: Current research on skyrmions is mostly focused on chiral magnets and heterostructures with inversion symmetry broken at the interface. Recent theoretical and experimental studies showed that skyrmions can also be stabilized by competing Heisenberg exchange interactions in Mott insulators and long-ranged interactions mediated by conduction electrons in itinerant magnets. These magnetically frustrated materials with achiral lattices are interesting because of additional collective degrees of freedom that give rise to a larger variety of topological magnetic states and more complex collective dynamics. I will also discuss unconventional topological defects predicted to occur in Fe-langasite which is both chiral and magnetically frustrated, in particular, the coreless Z_2 vortex and three-dimensional skyrmion closely related to the Shankar monopole in superfluid helium and hedgehog soliton in the Skyrme model of baryons.

Helye: BME Fizikai Intézet, Fizika Tanszék
Budafoki út 8. F-épület, 2. emelet, 13-as terem

Ideje: 2022. március 29. (kedd), 14:30.
Kapunyitás 14.15-től.
Program: http://physics.bme.hu/kollokvium

Minden érdeklődőt szívesen látunk!

Dóra Balázs és Zaránd Gergely

[Fizinfo] Szilárd-kollokvium (kedd 14:30), Mostovoy a skyrmionokról, Balazs Dora, 03/23/2022