Intrinsic localized spin waves in an antiferromagnetic spin system with next nearest neighbour interactions

A. Jarlet Jeyaseeli and M. M. Latha
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A. Jarlet Jeyaseeli: Women’s Christian College
M. M. Latha: Women’s Christian College

The European Physical Journal B: Condensed Matter and Complex Systems, 2021, vol. 94, issue 11, 1-12

Abstract: Abstract 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.

Date: 2021
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DOI: 10.1140/epjb/s10051-021-00216-6

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