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对于石榴石磁泡薄膜，提出了产生单个枝状畴（ ＭＢＤ） 的“低静态偏磁场法”．ＭＢＤ 的形成是与其畴壁内垂直布洛赫线（ＶＢＬ） 的形核相联系的．随着静态偏磁场Ｈｂ 从“枝状膨胀的临界偏磁场”Ｈ［ ｄ］ 的降低，相应的ＭＢＤ 的畴形变得越来越复杂，伴随有几类硬磁泡的相继形成．对ＭＢＤ 进行了分形研究，把线结构维数的计算应用于ＭＢＤ 极其弯曲的畴壁结构，定量地描述了它们的弯曲和分枝程度，并与其畴壁内ＶＢＬ 的形核联系起来．
For garnet bubble films, a “low static bias magnetic field method” that produces a single dendritic domain (MBD) has been proposed. The formation of MBD is linked to the nucleation of the vertical Bloch line (VBL) in the domain walls. As the static bias field Hb decreases from the “dendritic critical demagnetization field” H [d], the shape of the corresponding MBD becomes more and more complex, accompanied by the successive formation of several types of hard bubble. The fractal study of MBD has been used to calculate the dimension of line structure to the extremely curved domain wall structure of MBD. Quantitative description of their bending and branching degree is connected with the nucleation of VBL in its domain wall.