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Magnetic skyrmion materials

Publicado: Segunda, 24 de Outubro de 2022, 11h06 | Última atualização em Segunda, 24 de Outubro de 2022, 14h52 | Acessos: 187

Geetha Balakrishnan, professora do Departamento de Física da Universidade de Warwick, no Reino Unido é a convidada da edição de novembro dos Colóquios CBPF 2022. O evento acontece presencialmente no dia 08/11 (terça-feira), às 16h, com transmissão ao vivo pelo canal do instituto no YouTube.

Excepcionalmente este colóquio será ministrado em inglês.


Professora Geetha Balakrishnan
Crédito: Arquivo Pessoal

Sobre o tema:

Recently, there has been considerable interest in the physics of magnetic skyrmions due to their potential use in spintronic devices. Non-centrosymmetric magnetic systems have been found to host a variety of exotic, and in some cases topologically protected, magnetic states such as skyrmion lattices, bimerons, chiral solitons and helimagnetism to list a few. More recently skyrmions been found and investigated in centrosymmetric intermetallics as well. To make headway in understanding the physics of these skyrmion materials, high quality single crystals are essential. This has motivated us to embark upon a study of several classes of magnetic materials and to explore a wide composition range of each of the family of compounds. The materials investigated range from lacunar spinels, centrosymmetric intermetallics and layered van der Waals materials.

In this talk, I will present an overview of the crystal growth at Warwick of several of the above materials using a variety of techniques. Investigations of the effects of substitution and the resulting structural order/disorder on the existence of the skyrmions and other related spin structures in these crystals sheds light on the origin and the tuning of these lattices, and important structure property correlations.


Sobre a Palestrante:

Geetha Balakrishnan is a Professor in the Physics Department at the University of Warwick.
She has worked at Warwick since 1991. She is an internationally recognised expert in single crystal synthesis of a variety of materials including superconductors, magnets, topological materials and 2D materials. She has overseen UK funded crystal growth activities at the University of Warwick for nearly 30 years now. She is a Fellow of the Institute of Physics and Chair of the International Union of Crystallography commission on Crystal Growth and Characterisation of Materials. She has previously held visiting professorships at RIKEN (Japan), CNR-SPIN (Italy) and now at the CBPF (Rio).  

Link para CV Lattes:




Palestrante: Geetha Balakrishnan (University of Warwick)

Tema: Magnetic skyrmion materials

Dia: 08/11, terça-feira

Horário: 16h

Local: Aud. 6° andar - Ed. Cesar Lattes

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