A long-wave action of spin Hamiltonians and the inverse problem of the calculus of variations / Bostrem IG,Ovchinnikov AS,Egorov RF // PHYSICS LETTERS A. - 2001. - V. 279, l. 1-2. - P. 33-37.

ISSN/EISSN:

0375-9601 / нет данных

Type:

Article

Abstract:

We suggest a method of derivation of the long-wave action of the model spin Hamiltonians using the non-linear partial differential equations of motions of the individual spins. According to the Vainberg's theorem the set of these equations are (formal) potential if the symmetry analysis for the Frechet derivatives of the system is true. The case of Heisenberg (anti)ferromagnets is considered. It is shown the functional whose stationary points are described by the equations coincides with the long-wave action and includes the non-trivial topological term (Berry phase). (C) 2001 Elsevier Science B.V. All rights reserved.

Author keywords:

berry phase; long-wave action ANTIFERROMAGNETS

DOI:

10.1016/S0375-9601(00)00811-2

Web of Science ID:

ISI:000166706700007

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JAN 22
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
Keywords-Plus	ANTIFERROMAGNETS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Multidisciplinary
ResearcherID-Numbers	Ovchinnikov, Alexander/B-9906-2009
ORCID-Numbers	Ovchinnikov, Alexander/0000-0002-1173-9260
Number-of-Cited-References	9
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	1
Journal-ISO	Phys. Lett. A
Doc-Delivery-Number	397QL