SOLITARY MAGNON LOCALIZATION AND 2 MAGNON BOUND-STATES IN TYPE-I ANTIFERROMAGNETS

Authors
LIU WM ZHANG XM YAN ZC ZHOU BL
Citation
Wm. Liu et al., SOLITARY MAGNON LOCALIZATION AND 2 MAGNON BOUND-STATES IN TYPE-I ANTIFERROMAGNETS, Physica scripta. T, 50(2), 1994, pp. 181-186
Citations number
73
Categorie Soggetti
Physics
Journal title
Physica scripta. T → ACNP
ISSN journal
02811847
Volume
50
Issue
2
Year of publication
1994
Pages
181 - 186
Database
ISI
SICI code
0281-1847(1994)50:2<181:SMLA2M>2.0.ZU;2-9
Abstract
Introducing the Dyson-Maleev transformation, the coherent-state ansatz and the time-dependent variation principle, we obtain two partial dif ferential equations of motion in type-I antiferromagnets. Employing th e method of multiple scales, we reduce these equations into the envelo pe function equations and force the amplitude function to satisfy a no nlinear Schrodinger equation. Using the inverse-scattering transformat ion, we discuss solitary magnon localization, two magnon bound states. and gap solitons.