Electronic Resource
Springer
The European physical journal
29 (2002), S. 261-263
ISSN:
1434-6036
Keywords:
PACS. 75.60.Ch Domain walls and domain structure – 05.45.-a Nonlinear dynamics and nonlinear dynamical systems
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: The equation of motion of twists on classical antiferromagnetic Heisenberg spin chains are derived. It is shown that twists interact via position- and velocity-dependent long-range two-body forces. A quiescent regime is identified wherein the system conserves momentum. With increasing kinetic energy the system exits this regime and momentum conservation is violated due to walls annihilation. A bitwist system is shown to be integrable and its exact solution is analysed. Many-twist systems are discussed and novel periodic twist lattice solutions are found on closed chains. The stability of these solutions is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1140/epjb/e2002-00297-3
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