摘要
本論文是對樣品ReSe2及摻金和摻銀的ReSe2，藉由角度解析式X-光繞射(Angular-dispersive X-ray diffraction ,ADXRD) 高壓實驗， ReSe2加至10.50GPa、摻金ReSe2加至9.50GPa、摻銀ReSe2加至8.04GPa。所得數據，分析晶格的變化情形。看見三種樣品ReSe2在9.98GPa、摻金ReSe2在8.52GPa、摻銀ReSe2在7.46GPa分別有高壓相產生。
高壓下三種樣品的晶胞參數壓縮率以c軸為最高，其次是a軸、最低是b軸。因為層狀結構之故，沿著c軸﹝001﹞是層與層的結合，層與層之間只有微弱的凡得瓦力，而b 軸與鑽石鏈結相互平行彼此間有堅固的金屬鍵鏈結，故只要稍微在c軸加壓可能造成層與層之間的滑動。高壓實驗在相變壓力之前， ReSe2因壓力的增加晶胞參數α減少、β增加又在c減少的趨勢下，Se繞Re4有逆時針旋轉的狀況發生。摻金ReSe2與摻銀ReSe2有較異常的狀況，因c的減小及α、γ的改變有從逆時針至順時針又逆時針旋轉或扭曲的趨勢。因摻雜的銀離子較大，穩定性比掺金的ReSe2低。
以三階Birch–Murnaghan固體狀態方程式計算出三種樣品的體彈模量分別為 31GPa、 35 GPa、16 GPa。

Summary

This summary is to discuss the sample ReSe2 and gold-doped and silver-doped has been investigated to 10.50GPa、9.50GPa、8.04GPa through the angular analyze (Angular-dispersive X-ray diffraction, ADXRD) high pressure experiment,respectively. The obtained datas,to analyze the variability of crystal lattice.
Shows there are High-pressure phase occurred under ReSe2 at 9.98GPa, ReSe2:Au at 8.52GPa, ReSe2:Ag at 7.46GPa. Under the high pressure, the result of the highest compression rate of the unit cell parameters is the c-axis among these three samples. The second is a-axis. and the lowest is b-axis. Because of the layer structure. Along the c-axis (001) is the combine between layer and layer. There is only a weak Van der Waals existed between layer and layer. And there is a stable metal bond link between the b-axis and diamond chain mutually parallel. Therefore, as long as a little pressure adding might caused the slide between layer and layer.
The high pressure experiments is before the phase transition pressure. Because the pressure increase on ReSe2 , so the unit cell parameters decreased, under the trend of β increase and c decrease. There is a counterclockwise whirling occurred while Se circle Re4.. Gold-doped ReSe2 has a non-standard status. Because the decrease on c and the change on α、γ, there is a whirling trend from clockwise to counterclokwise. There is less regular increase-decrease on the unit cell parameters silver-doped ReSe2 . The stability is lower than the gold-doped ReSe2 .
Gold-doped ReSe2 and silver-doped ReSe2 have abnormal situation. Because of the c-decrease and the α、γ change, have the tendency from counterclockwise to clockwise and counterwise rotating or distorting. Doped silver ions, the stability than gold doping ReSe2 low.
To use three rank Birch–Murnaghan solidstate formula to figure out the bulk modulus of these three samples, the results are:
31GPa、 35 GPa、16 GPa。

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