The compressibility mechanism of Li3Na3In2F12 garnet
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The compressibility mechanism of Li3Na3In2F12 garnet. / Grzechnik, Andrzej; Balic Zunic, Tonci; Makovicky, Emil; Gesland, Jean-Yves; Friese, Karen.
In: Journal of Physics: Condensed Matter, Vol. 18, 2006, p. 2915–2924.Research output: Contribution to journal › Journal article › Research › peer-review
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T1 - The compressibility mechanism of Li3Na3In2F12 garnet
AU - Grzechnik, Andrzej
AU - Balic Zunic, Tonci
AU - Makovicky, Emil
AU - Gesland, Jean-Yves
AU - Friese, Karen
PY - 2006
Y1 - 2006
N2 - The high pressure behaviour of Li3Na3In2F12 garnet (Ia¯3d, Z = 8) is studied up to 9.2 GPa at room temperature in diamond anvil cells using xray diffraction. Its equation of state to 9.2 GPa and the pressure dependences of the structural parameters to 4.07 GPa are determined from synchrotron angle-dispersive powder and laboratory single-crystal data, respectively. No indication of any structural phase transition in this material has been found up to 9.2 GPa. The fitting of the Murnaghan equation of state yields B0 = 36.2(5) GPa, B0 = 5.38(18), and V0 = 2051.76(0.69) °A 3. The compressibility mechanism of Li3Na3In2F12 is attributed to the substantial bending of the In-F-Li angles linking the InF6 octahedra and LiF4 tetrahedra. The most compressible polyhedral units are the NaF8 triangulated dodecahedra. These results are discussed in relation to previous high pressure photoluminescence measurements and compared with the high pressure behaviour of silicate garnets.
AB - The high pressure behaviour of Li3Na3In2F12 garnet (Ia¯3d, Z = 8) is studied up to 9.2 GPa at room temperature in diamond anvil cells using xray diffraction. Its equation of state to 9.2 GPa and the pressure dependences of the structural parameters to 4.07 GPa are determined from synchrotron angle-dispersive powder and laboratory single-crystal data, respectively. No indication of any structural phase transition in this material has been found up to 9.2 GPa. The fitting of the Murnaghan equation of state yields B0 = 36.2(5) GPa, B0 = 5.38(18), and V0 = 2051.76(0.69) °A 3. The compressibility mechanism of Li3Na3In2F12 is attributed to the substantial bending of the In-F-Li angles linking the InF6 octahedra and LiF4 tetrahedra. The most compressible polyhedral units are the NaF8 triangulated dodecahedra. These results are discussed in relation to previous high pressure photoluminescence measurements and compared with the high pressure behaviour of silicate garnets.
U2 - 10.1088/0953-8984/18/10/014
DO - 10.1088/0953-8984/18/10/014
M3 - Journal article
VL - 18
SP - 2915
EP - 2924
JO - Journal of Physics: Condensed Matter
JF - Journal of Physics: Condensed Matter
SN - 0953-8984
ER -
ID: 1596526