Regular Article - Statistical and Nonlinear Physics
Intrinsic localized spin waves in an antiferromagnetic spin system with next nearest neighbour interactions
Department of Physics, Women’s Christian College, 629 001, Nagercoil, India
Accepted: 20 September 2021
Published online: 5 November 2021
This paper deals with spin deviation vs site number in an antiferromagnet with next nearest neighbour interactions along with bilinear, anisotropic, and Dzyaloshinski–Moriya (D–M) interactions. The nature of propagation of spin waves for different parametric choices is studied. By introducing Holstein–Primakoff representation of spin operators, we obtain a set of coupled partial differential equations. The equations are then analysed using sine–cosine function method and the results show that the spin wave propagates in the form of soliton.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2021