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Title: Local Structure of Transition Elements (V, Cr, Mn, Fe and Zn) in Al2SiO5 Polymorphs

Abstract

We measured XAFS spectra near the Ti, V, Cr, Mn, Fe, Co, Ni, Cu and Zn K-edges in Al2SiO5 polymorphs to reveal the local structure around these elements in the minerals. XANES spectra show that the valence of Fe and Cr is different depending on the crystal structure and formation environments. The spectra of kyanite, a high pressure mineral, shift to high energy side. The Fe-O bond length of kyanite determined by EXAFS data analyses is the shortest of all samples.

Authors:
; ;  [1];  [2];  [3];  [4]
  1. Graduate School of Science and Technology, Kumamoto University, Kumamoto 860-8555 (Japan)
  2. Graduate School of Science, Osaka University, Toyonaka 560-0043, (Japan)
  3. Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-850 (Japan)
  4. Faculty of Engineering, Tokushima University, Tokushima 770-8506 (Japan)
Publication Date:
OSTI Identifier:
21054602
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 882; Journal Issue: 1; Conference: XAFS13: 13. international conference on X-ray absorption fine structure, Stanford, CA (United States), 9-14 Jul 2006; Other Information: DOI: 10.1063/1.2644486; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION SPECTRA; ABSORPTION SPECTROSCOPY; ALUMINIUM SILICATES; BOND LENGTHS; CHROMIUM; COPPER; CRYSTAL STRUCTURE; DATA ANALYSIS; FINE STRUCTURE; IRON; MANGANESE; MINERALS; NICKEL; VALENCE; VANADIUM; X-RAY SPECTRA; X-RAY SPECTROSCOPY; ZINC

Citation Formats

Furukawa, Yuki, Yoshiasa, Akira, Nishiyama, Tadao, Arima, Hiroshi, Okube, Maki, and Murai, Kei-ichiro. Local Structure of Transition Elements (V, Cr, Mn, Fe and Zn) in Al2SiO5 Polymorphs. United States: N. p., 2007. Web. doi:10.1063/1.2644486.
Furukawa, Yuki, Yoshiasa, Akira, Nishiyama, Tadao, Arima, Hiroshi, Okube, Maki, & Murai, Kei-ichiro. Local Structure of Transition Elements (V, Cr, Mn, Fe and Zn) in Al2SiO5 Polymorphs. United States. doi:10.1063/1.2644486.
Furukawa, Yuki, Yoshiasa, Akira, Nishiyama, Tadao, Arima, Hiroshi, Okube, Maki, and Murai, Kei-ichiro. Fri . "Local Structure of Transition Elements (V, Cr, Mn, Fe and Zn) in Al2SiO5 Polymorphs". United States. doi:10.1063/1.2644486.
@article{osti_21054602,
title = {Local Structure of Transition Elements (V, Cr, Mn, Fe and Zn) in Al2SiO5 Polymorphs},
author = {Furukawa, Yuki and Yoshiasa, Akira and Nishiyama, Tadao and Arima, Hiroshi and Okube, Maki and Murai, Kei-ichiro},
abstractNote = {We measured XAFS spectra near the Ti, V, Cr, Mn, Fe, Co, Ni, Cu and Zn K-edges in Al2SiO5 polymorphs to reveal the local structure around these elements in the minerals. XANES spectra show that the valence of Fe and Cr is different depending on the crystal structure and formation environments. The spectra of kyanite, a high pressure mineral, shift to high energy side. The Fe-O bond length of kyanite determined by EXAFS data analyses is the shortest of all samples.},
doi = {10.1063/1.2644486},
journal = {AIP Conference Proceedings},
number = 1,
volume = 882,
place = {United States},
year = {Fri Feb 02 00:00:00 EST 2007},
month = {Fri Feb 02 00:00:00 EST 2007}
}