Paper Title:
High-Pressure Energy Dispersive X-Ray Diffraction Investigation of Lithium-Manganese Spinel
  Abstract

The formation of the tetragonal high-pressure structure, attributed to the Jahn-Teller distortion, was proved. The c/a axial ratio shows an increasing trend towards a stronger tetragonal distortion at high pressure. Rietveld refinement after the pressure relaxation demonstrates the presence of tetragonal artefacts of the high-pressure structure only for the LiMn2O4 sample compressed in hexagonal boron nitride (h-BN), whereas the sample compressed in silicone reveals the pure cubic phase. Confrontation with the result of the first angle-dispersive diamond-anvil-cell experiment is presented.

  Info
Periodical
Solid State Phenomena (Volume 130)
Edited by
Danuta Stróż & Małgorzata Karolus
Pages
69-72
DOI
10.4028/www.scientific.net/SSP.130.69
Citation
P. Piszora, "High-Pressure Energy Dispersive X-Ray Diffraction Investigation of Lithium-Manganese Spinel", Solid State Phenomena, Vol. 130, pp. 69-72, 2007
Online since
December 2007
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