ZnSiF_6·6H_2O：Ni^（2＋）零场分裂D的压力效应

PRESSURE EFFECT OF EPR ZFS OF ZnSiF_6·6H_2O: Ni￣(2+)

考虑到高压下晶体的微观结构、静电库仑作用都发生变化，本文研究了掺杂晶体ＺｎＳｉＦ６·６Ｈ２Ｏ：Ｎｉ２＋在低温下（４．２Ｋ）的零场分裂三角分量Ｄ与静水压（常压≤Ｐ≤４４００ｂａｒ）间的联系。理论和实验结果符合好。

Considering the variation of the crystal structures and the electrostatic interaction under pressure, we study the pressure dependences of the Zero-field splitting D for ZnSiF_6·6H2O: Ni￣2+ at the low-temperature(4.2K) at pressures up to 4400 bar. The theoretical results agree well with experimental findings.