Electron microscopy
Space Group/Crystal Structure Depending on Substitution Concentration
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The structure of crystals can be changed with substitutions, for instance, for Ca1-xSrxTiO3, with increasing Sr substitution the crystal changes space group from tetragonal (I4/mcm) to cubic (Pm-3m) structure [1] as listed in Table 1867.

Table 1867. Structures of Ca1-xSrxTiO3 with increasing Sr substitution.


0 ≤ x ≤ 0.6

x = 0.65 x = 1
Space group Pbnm I4/mcm Pm-3m




[1] Takamitsu Yamanaka, Noriyuki Hirai, and Yutaka Komatsu, Structure change of Ca1–xSrxTiO3 perovskite with composition and pressure, American Mineralogist, 87, 1183–1189, 2002.


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