1993 年 20 巻 4 号 p. 377-384
Morphologies of orderig domains or grains in the first order phase transition are numerically investigated under inhomogeneous external conditions. Morphology found by the homogeneous quenching is isotropic, I.e., irregular. When the quenching is inhomogeneous, morphologies are more or less regular. However, the regular morphology is not a simple reflection of the inhomogeneous external condition, but the morphology may change discontinuously.