Magnetic, superconducting, and quantum oscillation phenomena in crystallite structures with nano-width multilayer interfaces of three-dimensional topological insulator Bi_1-xSb_x (0.07 ≤ x ≤ 0.2) have been studied. Samples with a high degree of imperfection have been prepared by the modified horizontal zone recrystallization method using the double seed technique. It has been found that the Dirac charge carriers in crystallite interfaces layers are much heavier than those in the bulk crystallites; therefore, the high imperfection at interfaces has a significant impact on carrier scattering and predetermines the manifestation of various anomalies of superconducting, magnetic, and quantum magneto-transport phenomena. Thus, the crystallite structures exhibit, simultaneously with superconductivity, ferromagnetic hysteresis loops, which also indicate the formation of a ferromagnetic underlying electronic structure. A number of crystallite structures with a rather high content of imperfections and two superconducting transitions exhibit dual superimposed ferromagnetic and superconducting loops, which denote the simultaneously coexistence of superconductivity and weak ferromagnetism in interfaces.

磁，超导和量子振荡现象的微晶结构的Bi三维拓扑绝缘体的纳米宽度多层接口_1-x Sb的_X（0.07≤  X ≤0.2）已被研究。通过改进的水平区重结晶方法，使用双晶种技术制备了具有高度缺陷的样品。已经发现，微晶界面层中的狄拉克电荷载流子比块状微晶中的载流子重得多。因此，界面处的高缺陷会对载流子散射产生重大影响，并预先确定各种超导，磁和量子磁传输现象的异常表现。因此，微晶结构同时具有超导性，表现出铁磁磁滞回线，这也表明形成了铁磁底层电子结构。