Spin stiffness in zigzag graphene nanoribbon under electric field

Autor:	E. Budi, T. B. Prayitno
Rok vydání:	2020
Předmět:	History Materials science Condensed matter physics Graphene Stiffness Computer Science Applications Education law.invention Zigzag law Electric field medicine Condensed Matter::Strongly Correlated Electrons Physics::Chemical Physics medicine.symptom Spin-½
Zdroj:	Journal of Physics: Conference Series. 1567:022009
ISSN:	1742-6596 1742-6588
Popis:	We considered the effect of the electric field on the spin stiffness in the zigzag graphene nanoribbon by means of first-principles calculation. To reach the intention, a fixed planar spiral structure was formed together with a spin constraint method in the antiferromagnetic edge states of the zigzag graphene nanoribbon. The spin stiffness was then obtained by fitting the total energy difference in a set of spiral vector via the Heisenberg model. We showed that the trend of the spin stiffness changes as the electric field increases up to certain value. This means that the electric field can control the spin stiffness in the zigzag graphene nanoribbon.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2407f437f4df730e82a14253a730c653 https://doi.org/10.1088/1742-6596/1567/2/022009 Zobrazit plný text záznamu