Optical absorption spectra of ferropericlase to 84 GPa

American Mineralogist

Volumn 92, Issue 2-3, 2007, Pages 433-436

  Keppler, Hans ^a   Kantor, Innokenty ^a   Dubrovinsky, Leonid S ^a  

^a UNIVERSITÄT BAYREUTH   (Germany)

Author keywords

Crystal field splitting; Ferropericlase; Iron; Jahn Teller effect; Low spin; Optical spectra; Racah parameter; Radiative conductivity; Spin pairing

Indexed keywords

ABSORPTION SPECTRA; CRYSTALS; FOURIER TRANSFORM INFRARED SPECTROSCOPY; INFRARED DEVICES; IRON; IRON COMPOUNDS; JAHN-TELLER EFFECT; LIGHT ABSORPTION; MAGNESIUM COMPOUNDS; THERMAL CONDUCTIVITY;

CRYSTAL-FIELD SPLITTING; FERROPERICLASE; LOW-SPIN; OPTICAL SPECTRA; RACAH PARAMETERS; RADIATIVE CONDUCTIVITY; SPIN PAIRINGS;

ABSORPTION SPECTROSCOPY;

ABSORPTION SPECTRUM; ATOMIC ABSORPTION SPECTROSCOPY; CHEMICAL COMPOSITION; CONDUCTIVITY; CRYSTAL STRUCTURE; OPTICAL PROPERTY;

EID: 33947236956     PISSN: 0003004X     EISSN: None     Source Type: Journal    
DOI: 10.2138/am.2007.2454     Document Type: Conference Paper

References (16)

1. Badro, J., Fiquet, G., Guyot, F., Rueff, J.-P., Struzhkin, V.V., Vankó, G., and Monaco, G. (2003) Iron partitioning in Earth's mantle: Towards a deep lower mantle discontinuity. Science, 300, 789-791.
2. Badro, J., Fiquet, G., and Guyot, F. (2005) Thermochemical state of the lower mantle: New insights from mineral physics. In R.D. van der Hilst, J. Bass, J. Matas, and J. Trampert, Eds., Earth's deep mantle: Structure, composition, evolution. AGU Geophysical Monograph Series, 160, 241-260.
3. Bolfan-Casanova, N., Mackwell, S., Keppler, H., McCammon, C., and Rubie, D.C. (2002) Pressure dependence of H solubility in magnesiowüstite up to 25 GPa: Implications for the storage of water in the Earth's lower mantle. Geophysical Research Letters, 29, 101449 (DOI: 10.1029/ 2001GL014457).
4. Burns, R.G. (1993) Mineralogical applications of crystal field theory. Cambridge University Press, U.K.
5. Clark, S.P. (1957) Radiative transfer in the Earth's mantle. Transactions of the American Geophysical Union, 38, 931-938.
6. Figgis, B.N. (1966) Introduction to ligand fields. Wiley, New York.
7. Goncharov, A.F., Struzhkin, V.V., and Jacobsen, S.D. (2006) Reduced radiative conductivity of low-spin (Mg,Fe)O in the lower mantle. Science, 312, 1205-1208.
8. Kambara, T. (1979) Theory of the high-spin low-spin transitions in transition metal compounds induced by the Jahn-Teller effect. Journal of Chemical Physics, 70, 4199-4206.
9. Kantor, I.Y, Dubrovinsky, L.S., and McCammon, C.A. (2006) Spin crossover in (Mg,Fe)O: A Mössbauer effect study with an alternative interpretation of X-ray emission spectroscopy data. Physical Review B, 73, 100101 (DOI: 10.1103/Phys-RevB.73.100101).
10. Keppler, H. and Smyth, J.R. (2005) Optical and near infrared spectra of ringwoodite to 21.5 GPa: implications for radiative heat transport in the mantle. American Mineralogist, 90, 1209-1212.
11. Mao, H.K. and Bell, PM. (1972) Electrical conductivity and the red shift of absorption in olivine and spinel at high pressure. Science, 176, 403-405.
12. Ohnishi, S. (1978) A theory of the pressure-induced high-spin-low-spin transition of transition metal oxides. Physics of the Earth and Planetary Interiors, 17, 13-139.
13. 2+ and the dynamic Jahn-Teller effect. Journal of Physics and Chemistry of Solids, 29, 1907-1909.
14. Shankland, T.J., Duba, A.G., and Woronow, A. (1974) Pressure shifts of optical absorption bands in iron-bearing garnet, spinel, olivine, pyroxene and periclase. Journal of Geophysical Research, 79, 3273-3282.
15. Speziale, S., Milner, A., Lee, V.E., Clark, S.M., Pasternak, M.P., and Jeanloz, R. (2005) Iron spin transition in Earth's mantle. Proceedings of the National Academy of Sciences of the United States of America, 102, 17918-17992.
16. Sturhahn, W., Jackson, J.M., and Lin, J.F. (2005) The spin state of iron in minerals of Earth's lower mantle. Geophysical Research Letters, 32, L12307.