Heat Capacity and Thermodynamic Properties of SmFeGe2O7 in the Range 350–1000 K

Synthesis, Crystal Structure, and the Optical and Thermodynamic Properties of PrAlGe2O7

“…There has recently been a steady rise in interest in germanium-based oxide materials with the general formula RMGe 2 O 7 (R = rare-earth element (REE); M = Al, Ga, In, Fe) [1][2][3][4][5][6][7]. It should be noted that the compounds most studied also contain iron [4,5,[8][9][10][11][12], and we have data on their structure and magnetic properties. Only fragmentary data on unit cell parameters and optical properties are available for other RMGe 2 O 7 compounds [1,2,5,7].…”

“…Only fragmentary data on unit cell parameters and optical properties are available for other RMGe 2 O 7 compounds [1,2,5,7]. The thermophysical properties of this type of compounds at high temperatures have been investigated only for SmFeGe 2 O 7 [12] and SmGaGe 2 O 7 [7]. These materials include PrAlGe 2 O 7 , for which only unit cell parameters are known [2].…”