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Title: Raman spectroscopy of titanomagnetites: Calibration of the intensity of Raman peaks as a sensitive indicator for their Ti content

Abstract

A systematic study of the Raman spectra of the titanomagnetite solid-solution series (Fe{sub 3-x}Ti{sub x}O{sub 4}) for x = {approx}0.0, 0.2, 0.4, and 0.6 has been conducted. The samples showed combinations of five previously predicted Raman peaks at {approx}190, 310, 460, 540, and 670 cm{sup -1} that correspond to vibrational modes with T{sub 2g}(1), E{sub g}, T{sub 2g}(3), T{sub 2g}(2), and A{sub 1g}, respectively. The calibration of Raman spectra for titanomagnetite with known values of Ti concentrations reveals a strong dependence of relative intensity for the T{sub 2g}(2) and T{sub 2g}(3) modes on Ti concentration. The most prominent feature is the appearance and increase in the relative intensity of a T{sub 2g}(3) peak above x = {approx}0.2. On the other hand, the Raman peak for the T{sub 2g}(2) mode gradually diminishes as Ti increases and nearly disappears at x = {approx}0.6. Combining the two relative intensities potentially provides a sensitive indicator of Ti content. The technique was applied to study titanomagnetite in grains from Hana Volcanics and melatroctolite from Rhode Island.

Authors:
; ; ; ; ; ;  [1];  [2]
  1. (Hawaii)
  2. (
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
NSFOTHER
OSTI Identifier:
1038608
Resource Type:
Journal Article
Resource Relation:
Journal Name: Am. Mineral.; Journal Volume: 96; Journal Issue: (10) ; 10, 2011
Country of Publication:
United States
Language:
ENGLISH

Citation Formats

Zinin, Pavel, Tatsumi-Petrochilos, Lisa, Bonal, Lydie, Acosta, Tayro, Hammer, Julia, Gilder, Stuart, Fuller, Mike, and TU Munchen). Raman spectroscopy of titanomagnetites: Calibration of the intensity of Raman peaks as a sensitive indicator for their Ti content. United States: N. p., 2015. Web. doi:10.2138/am.2011.3745.
Zinin, Pavel, Tatsumi-Petrochilos, Lisa, Bonal, Lydie, Acosta, Tayro, Hammer, Julia, Gilder, Stuart, Fuller, Mike, & TU Munchen). Raman spectroscopy of titanomagnetites: Calibration of the intensity of Raman peaks as a sensitive indicator for their Ti content. United States. doi:10.2138/am.2011.3745.
Zinin, Pavel, Tatsumi-Petrochilos, Lisa, Bonal, Lydie, Acosta, Tayro, Hammer, Julia, Gilder, Stuart, Fuller, Mike, and TU Munchen). Thu . "Raman spectroscopy of titanomagnetites: Calibration of the intensity of Raman peaks as a sensitive indicator for their Ti content". United States. doi:10.2138/am.2011.3745.
@article{osti_1038608,
title = {Raman spectroscopy of titanomagnetites: Calibration of the intensity of Raman peaks as a sensitive indicator for their Ti content},
author = {Zinin, Pavel and Tatsumi-Petrochilos, Lisa and Bonal, Lydie and Acosta, Tayro and Hammer, Julia and Gilder, Stuart and Fuller, Mike and TU Munchen)},
abstractNote = {A systematic study of the Raman spectra of the titanomagnetite solid-solution series (Fe{sub 3-x}Ti{sub x}O{sub 4}) for x = {approx}0.0, 0.2, 0.4, and 0.6 has been conducted. The samples showed combinations of five previously predicted Raman peaks at {approx}190, 310, 460, 540, and 670 cm{sup -1} that correspond to vibrational modes with T{sub 2g}(1), E{sub g}, T{sub 2g}(3), T{sub 2g}(2), and A{sub 1g}, respectively. The calibration of Raman spectra for titanomagnetite with known values of Ti concentrations reveals a strong dependence of relative intensity for the T{sub 2g}(2) and T{sub 2g}(3) modes on Ti concentration. The most prominent feature is the appearance and increase in the relative intensity of a T{sub 2g}(3) peak above x = {approx}0.2. On the other hand, the Raman peak for the T{sub 2g}(2) mode gradually diminishes as Ti increases and nearly disappears at x = {approx}0.6. Combining the two relative intensities potentially provides a sensitive indicator of Ti content. The technique was applied to study titanomagnetite in grains from Hana Volcanics and melatroctolite from Rhode Island.},
doi = {10.2138/am.2011.3745},
journal = {Am. Mineral.},
number = (10) ; 10, 2011,
volume = 96,
place = {United States},
year = {Thu Oct 15 00:00:00 EDT 2015},
month = {Thu Oct 15 00:00:00 EDT 2015}
}