关于自旋玻璃EA模型的一些讨论

A FEW DISCUSSIONS ABOUT THE EA MODEL OF SPIN GLASSES

现有的关于自旋玻璃的论文几乎都是以 q≡■作为短程序参量进行讨论的.q 实质上反映了〈Sz〉的平方涨落.由于注意到计算结果中出现的往往是 q1/2,而

(1)A new short-range order parameter,i.e.p≡,is proposed, with which the EA-SK Model is solved.Tile phase diagram has been obtained,which differs slightly from the SK's and the cusp's shape of the magnetic susceptibility is closer to the result of experiments than the SK's. (2)The“EA-SK”model is solved,in which the random field is taken to be Lorentz distribution.The phase diagrams with different values of(α/δ) and the equations of the lines between various phases are obtained.