摘要
研究了一个一维可解自旋 轨道模型 .在大自旋极限下 ,自旋自由度可以近似用经典自旋来描述 .在没有外磁场情形 ,系统的基态是伊辛自旋反铁磁背景下的轨道液体态 .其低能元激发是类似于spinon的轨道量子 .而在有外磁场情形 ,系统会出现磁通点阵相 .同时 ,磁通将系统分割成不连通的轨道液体 .
A one-dimensional integrable spin-orbital model is studied. In the large spin limit, the degrees of freedom of the spin part can be described by the classical Ising spins. Without the external magnetic field, the ground state of the system is a connected orbital liquid with the background of Ising antiferromagnetic order of spins. The elementary excitations are the usual spinon-like orbital quanta. In an external magetic field, flux phase exists in the system. The fluxes(two parallel ising spins) cut the system into disconnected orbital liquids(domains).
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2003年第9期2290-2292,共3页
Acta Physica Sinica
