Author/Authors :
Endo، نويسنده , , S. and Watanabe، نويسنده , , Y. and Uozaki، نويسنده , , H. and Okamoto، نويسنده , , K. and Yamaguchi، نويسنده , , M. and Goto، نويسنده , , T. and Fukase، نويسنده , , T. and Toyota، نويسنده , , N.، نويسنده ,
Abstract :
We have measured the temperature dependence of lattice parameters of the title salts from 300 down to 11 K by a four circle X-ray diffractometer. It is confirmed that the ND2Hg(SCN)4 salt shows essentially the same anisotropic contraction of the c/a with the NH4Hg(SCN)4 salt. The deuteration enhances the c/a ratio by 0.3 % at low temperatures.