In recent years, Wang Mu has mainly studied the growth morphology and formation mechanism of several interfaces in crystal growth system and electro-crystallization system, and studied the evolution process and dynamic law of interfaces, revealing the influence of periodic changes of physical and chemical environment near the growth interface unique to transmission limiting system on the growth morphology and growth mechanism. The main work includes systematically studying the crystal aggregation behavior controlled by nucleation on the growth interface in quasi-two-dimensional system, discovering the spontaneous rotation of crystal orientation during crystal aggregation and its physical essence, and developing related theories; The effect of electric convection on the growth morphology was observed for the first time in the electrochemical deposition experimental system. The self-organized growth mechanism of long-range ordered structures in this experimental system is systematically studied. In order to control electric convection and study the influence of convection noise on interface growth, an ultra-thin electrochemical growth system was designed for the first time, and a method of self-organizing growth of long straight copper wire arrays with nanostructures on arbitrary solid substrates was found. 1994 was supported by the first National Science Fund for Distinguished Young Scholars. 1995 was awarded "Outstanding Young Scholar Award" by Hong Kong Qiushi Foundation; 1999 Baosteel Education Foundation Special Award for Excellent Teachers; 1999 was hired by Nanjing University as the first batch of Yangtze River distinguished professor. Since 199 1, Wang Mu has published more than 40 papers in international first-class academic journals such as Nature, phys.revlett and phys.rev., which have been positively cited by more than 200 papers and 2 monographs.