在用原子力显微镜对有机非线性光学晶体CdHg(SCN)4(H6C2OS)2(CMTD)的研究过程中,发现了一种单二维核叠层生长现象,即整个晶体由一个二维核叠层生长丘发展而成.这种生长现象无法用经典的二维核模型解释,于是给出另一种二维核生长模型--二维核叠层模型(terraced nuclear model).二维核叠层模型是传统二维核晶体生长模型的补充.
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