Anomalous magnons in quantum Hall ferromagnet with strong interaction at filling factor 2

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Resumo

In two-dimensional electronic systems, at large values of the Wigner–Seitz parameter, an anomalous branch of magnons was found. In a quantum Hall ferromagnet state with ν = 2, the magnon dispersion reveals a magnetoroton minimum with depth dependent on electron density. Magnetorotons with opposite momenta are shown to attract each other.

Sobre autores

A. Vankov

Institute of Solid State Physics of the Russian Academy of Sciences

Autor responsável pela correspondência
Email: vankov@issp.ac.ru
Russia, 142432, Chernogolovka

A. Koreyev

Institute of Solid State Physics of the Russian Academy of Sciences

Email: vankov@issp.ac.ru
Russia, 142432, Chernogolovka

P. Berezhnoy

Institute of Solid State Physics of the Russian Academy of Sciences

Email: vankov@issp.ac.ru
Russia, 142432, Chernogolovka

I. Kukushkin

Institute of Solid State Physics of the Russian Academy of Sciences

Email: vankov@issp.ac.ru
Russia, 142432, Chernogolovka

Bibliografia

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Declaração de direitos autorais © А.Б. Ваньков, А.С. Кореев, П.С. Бережной, И.В. Кукушкин, 2023