二硒酸氫三銣晶體的室溫結構可被分類為單斜相、空間群C2/c，當加熱至
相變溫度後轉變為三角相和超離子相。在實驗中設計了升溫和降溫的裝置
，而此裝置溫度範圍涵蓋了相變溫度前後，藉由此裝置和HP4194A阻抗分
析器可以去量測溫度範圍從303K至503K中樣品的導電率、電容和介電常數
，而由實驗所得的數據顯示出不可逆的過程以及在499K附近異常的上升，
因而建議出可能的相變溫度值。從B.V.Merinov的論文中提出了對二硒酸
氫三銫的超離子相的導電機制，而O(X)-O(Y)間的鍵長為0.7A至1A，而此
差值影響到樣品的導電率，同理比較於二硒酸氫三銣則為0.77A至0.88A，
因此在銣中有相似的傳導機制，而本實驗支持了這樣的預測。

At room temperature the crystal structure of Rb3H(SeO4)2 can be
classified into the monoclinic space group C2/c. When heated
over the phase transition temperature, the monoclinic phase is
supposed to transit into rhombohedral and superionic phase. In
this experiment, we set up a heating and cooling device which
can coverthe range of the supposed phase transition
temperature. With the temperature device and HP4194A impedance
analyzer we measure the electric conductivity,capacitance and
dielectric constant of the sample at the temperature cycle
between 303K and 503K. The experiment data show to us an
irreversible process and an abnormal climbing at around 449K
which suggests the possible phase transition temperature. In B.
V. Merinov's paper discussing the conductive mechanism of the
superionic phase Cs3H(SeO4)2 , difference between O(X)-O(Y)
binding distances contribute the conductivity of the sample. In
which, the differences are around 0.7A-1.0A. Compared to my
computation on Rb3H(SeO4)2 's case, which are 0.77A-0.88A, we
can predict there is a similar mechanism in Rb's case, and this
experiment supports this
At room temperature the crystal structure of Rb3H(SeO4)2 can be