论文标题
掺杂的双层$α$ - $ {\ cal t} _3 $ lattice在强磁场中
Superfluidity of dipolar magnetoexcitons in doped double-layered $α$-${\cal T}_3$ lattice in a strong magnetic field
论文作者
论文摘要
我们预测一对Quasi-Two二维空间分离的$α$ - $ {\ cal t} _3 $ layers bose-Einstein凝结和偶极磁磁体的超流体的发生。我们已经解决了电子和模型哈密顿型$α$ - $ - $ {\ cal t} _3 $双层磁场中的两体问题。集体激发的能量分散，声速的光谱和磁脱甲基的有效磁性质量是在整数量子霍尔在高磁场中获得的。探测了kosterlitz的超氟密度和温度，以探测出激素密度，磁场和层间分离的功能。
We predict the occurrence of Bose-Einstein condensation and superfluidity of dipolar magnetoexcitons for a pair of quasi-two-dimensional spatially separated $α$-${\cal T}_3$ layers. We have solved a two-body problem for an electron and a hole for the model Hamiltonian for the $α$-${\cal T}_3$ double layer in a magnetic field. The energy dispersion of collective excitations, the spectrum of sound velocity, and the effective magnetic mass of magnetoexcitons are obtained in the integer quantum Hall regime for high magnetic fields. The superfluid density and the temperature of the Kosterlitz-Thouless phase transition are probed as functions of the excitonic density, magnetic field, and the inter-layer separation.
