Structural and elastic properties of defect chalcopyrite HgGa2S4 under high pressure

Abstract

In this work, we focus on the study of the structural and elastic properties of

X-ray diffraction study on pressure-induced phase transformations and the equation of state of ZnGa2Te4

“…According to our results DS-ZnGa 2 Te 4 is one of the compounds of the adamantine-type AB 2 X 4 family with the smallest bulk modulus. 15 The bulk modulus of DR-ZnGa 2 Te 4 is $20% larger than that of the low-pressure phase, which is consistent with the volume collapse observed at the transition (see Fig. 5).…”

“…Among other techniques, they have been studied by XRD, being several pressure-induced transitions reported. [6][7][8][9][10][11][12][13][14][15] The reversibility of these transitions is subject of dispute. In some cases, it has been found that the transitions are not reversible, being metastable polymorphs recovered at ambient conditions after decompression.…”

Structural and Vibrational Properties of CdAl2S4 under High Pressure: Experimental and Theoretical Approach

“…[11][12][13][14][15][16][17][18] In particular, DC-CdAl 2 S 4 has been the subject of several HP x-ray diffraction (XRD) and Raman scattering (RS) studies. 11, 13,15 These works have shown contradictory results regarding the structure of the recovered sample after pressure loading.…”

Phase stability and elastic properties of CuGaSe2 under high pressure

“…The B/G ratios in Table 3 indicate that CGS in P4/mmm and Amm2 are ductile material. The bulk modulus, and elastic constant and B/G ratio calculated from VRH method were widely used to classify type of phase in compounds such as MgCu 2 [31], HgGa 2 Se 4 [32], CdGa 2 Se 4 [33], HgGa 2 Se 4 [34] and HgGa 2 S 4 [35]. Bulk modulus, C 11 , and B/G ratio of CuGaSe 2 increase under high-pressure which related with the defect-chalcopyrite compounds (HgGa 2 Se 4 and HgGa 2 S 4 ) [32,35].…”