摘要
采用双子格模型和相干态表示,研究了链与链之间存在反铁磁相互作用的双铁磁链系统中的非线性激发的性质,得到了孤子的宽度,能量及有效质量。
Employing the double sublattice mode and the coherent state ansatz, we study the properties of a nonlinear excitation in two ferromagnetic chains with antiferromagmetic interaction. The width, the energy and the effective mass of the soliton are given. These result show that it is possible to excite nontopological soliton or non topological reversed soliton or topological soliton or topological reversed soliton in this system under the condition of the different anisotropy.
出处
《原子与分子物理学报》
CAS
CSCD
北大核心
1999年第4期521-526,共6页
Journal of Atomic and Molecular Physics
关键词
双铁磁链
双子模模型
相干态
反铁磁性
two FM chains
double subattice mode
coherent state ansatz
topological soliton
Non topological
soliton