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Ferromagnetic Phase in Graphene‐Based Planar Heterostructures Induced by Charged Impurityстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Grashin P., Sveshnikov K.
- Журнал: Annalen der Physik
- Том: 532
- Номер: 1
- Год издания: 2020
- Издательство: WILEY-V C H VERLAG GMBH
- Местоположение издательства: PO BOX 10 11 61, WEINHEIM, GERMANY,D-69451
- DOI: 10.1002/andp.201900351
- Аннотация: The spontaneous self‐consistent generation of axial current and corresponding dipole‐like magnetic field in a planar electron–positron system similar to graphene and related heterostructures doped by charged impurity with charge Z is explored. It is shown that this effect takes place for 𝑍≥𝑍* with 𝑍* being a peculiar analogue of the Curie point in ferromagnetics. The properties of the induced ferromagnetic state are studied in detail. It is also shown that the magnetic dipole arising this way leads to a significant decrease of the total Casimir (vacuum) energy of the system, which in turn provides its spontaneous generation above the “Curie point” 𝑍≥𝑍* .
- Добавил в систему: Грашин Петр Анатольевич