A new high-pressure phase of LiAlO2

Li, X. J.; Kobayashi, T.; Zhang, F. X.; Kimoto, K.; Sekine, T.

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A new high-pressure phase of LiAlO₂

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Zhang, F. X.
Miscellaneous, Max Planck Institute for Solid State Research, Max Planck Society;

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Li, X. J., Kobayashi, T., Zhang, F. X., Kimoto, K., & Sekine, T. (2004). A new high-pressure phase of LiAlO₂. Journal of Solid State Chemistry, 177(6), 1939-1943.

Cite as: https://hdl.handle.net/21.11116/0000-000E-FA19-D

Abstract

A new high-pressure phase of LiAlO2 has been recovered through a shock
recovery technique at pressures above 9 GPa. This new phase has been
refined as a tetragonal structure with lattice parameters of a =
0.38866(8) nm and c = 0.83001(18) nm. Its calculated density is 3.51
g/cm(3). about 34% denser than gamma-LiAlO2. The aluminum and lithium
cations in this new phase are six-fold coordinated, as in alpha-LiAlO2,
and the structure of this new phase is similar to tetragonal LiFeO2.
This new high-pressure phase is stable at temperatures up to 773 K. (C)
2004 Elsevier Inc. All rights reserved.