The isomorphous transition between Co(NH3)6(PF6)2 and Ni(NH3)6(PF6)2

被引：0
|
作者：
G.J. Kearley
P. Schiebel
M. Johnson
E. Bruck
机构：
[1] Interfaculty Reactor Institute,
[2] Delft University of Technology,undefined
[3] Mekelweg 15,undefined
[4] 2629 JB Delft,undefined
[5] The Netherlands,undefined
[6] Institut für Kristallographie,undefined
[7] Universität Tübingen,undefined
[8] 72070 Tübingen,undefined
[9] Germany,undefined
[10] Institut Laue Langevin,undefined
[11] BP156,undefined
[12] 38042 Grenoble,undefined
[13] Cedex 09,undefined
[14] France,undefined
[15] Van der Waals–Zeeman Instituut,undefined
[16] Universiteit van Amsterdam,undefined
[17] Valckenierstraat 65,undefined
[18] 1018 XE Amsterdam,undefined
[19] The Netherlands,undefined
来源：
Applied Physics A | 2002年 / 74卷
关键词：
PACS: 64.70.-p; 61.12.Ex; 61.50.Ks;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The unusual phase transition at 20 K in Ni(NH3)6(PF6)2 in which there is no change of symmetry is investigated via the quantum-rotational spectrum of a series of mixed NixCo(1-x)(NH3)6(PF6)2 crystals. Below x=0.65 the spectra reveal the lattice of the high-temperature phase of Ni(NH3)6(PF6)2, whilst above this composition the low-temperature phase is present. This observation is in contrast to the smooth transition as a function of composition that was expected, in which the dynamics is characterized by many closely spaced shallow potential-energy minima.
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页码：s1345 / s1347
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