Aluminium K-Edge XANES Study of Mica Preiswerkite

Journal Article · Fri Oct 27 00:00:00 EDT 2006 · Phys.Scripta T115:172,2005

OSTI ID:894130

Wu, Z; Marcelli, A; Cibin, G; Mottana, A; Della Ventura, G

We present the Al K-edge XANES spectrum of synthetic mica with mixed fourfold coordinated and sixfold coordinated Al (preiswerkite). Experimental analysis and multiple scattering simulations of XANES spectra demonstrate that octahedral contributions may overlap the tetrahedral ones so that the lower energy structures in mixed coordination compounds may be associated to Al octahedral site. This unexpected behavior can be explained as due to a large local distortion of the Al octahedral site.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 894130
• Report Number(s): SLAC-REPRINT-2005-316; TRN: US200702%%100
• Journal Information: Phys.Scripta T115:172,2005, Conference: Proceedings 12th International Conference on X-ray Absorption Fine Structure (XAFS XII) 115:172,2005
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ABSORPTION
ABSORPTION SPECTROSCOPY
ALUMINIUM
FINE STRUCTURE
MICA
MOLECULAR STRUCTURE
MULTIPLE SCATTERING
SPECTRA
X-RAY SPECTROSCOPY
Other
OTHER