We calculate variations of the charge density wave (CDW) and the spin density wave (SDW) gaps,ad well as their classical trajectory ? c,s with increasing on-site Coulomb repoulsion potential.

• 通过自旋密度波和电荷密度波的位相结构的变化 ；并结合其相应能隙的变化 ；得到以下结论 :系统的Ising相变与Mott相变不重合 ；中间有一个SDI(spontaneouslydimerizedinsulating)的过渡相 .