Iron spin state in silicate perovskite at conditions of the Earth's deep interior

Catherine McCammon, Konstantin Glazyrin, Anastasia Kantor, Innokenty Kantor, Ilya Kupenko, Olga Narygina, Vasily Potapkin, Clemens Prescher, Ryosuke Sinmyo, Alexandr Chumakov, Rudolf Rüffer, Ilya Sergueev, Gennady Smirnov, Leonid Dubrovinsky

doi:10.1080/08957959.2013.805217

Iron spin state in silicate perovskite at conditions of the Earth's deep interior

DOI Web Site 被引用文献3件

Catherine McCammon

Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany
Konstantin Glazyrin

Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany
Anastasia Kantor

Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany
Innokenty Kantor

European Synchrotron Radiation Facility, Grenoble, France
Ilya Kupenko

Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany
Olga Narygina

Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany
Vasily Potapkin

Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany
Clemens Prescher

Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany
Ryosuke Sinmyo

Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany
Alexandr Chumakov

European Synchrotron Radiation Facility, Grenoble, France
Rudolf Rüffer

European Synchrotron Radiation Facility, Grenoble, France
Ilya Sergueev

European Synchrotron Radiation Facility, Grenoble, France
Gennady Smirnov

National Research Center “Kurchatov Institute”, Moscow, Russia
Leonid Dubrovinsky

Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth, Germany

書誌事項

公開日: 2013-06-11

DOI

10.1080/08957959.2013.805217

公開者: Informa UK Limited

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説明

We present a review of our recent work concerning the spin state of Fe2+ and Fe3+ in iron magnesium aluminium silicate perovskite, the most abundant phase in the Earth's interior. Experimental results obtained using Mossbauer spectroscopy (with a radioactive source and a Synchrotron Mossbauer Source) and nuclear forward scattering for a range of different sample compositions in both externally heated and laser-heated diamond anvil cells show clear trends in the variation of hyperfine parameters with pressure and temperature. These trends combined with reported total spin state measurements using X-ray emission spectroscopy on samples of similar composition support the conclusion that Fe2+ undergoes a high-spin to intermediate-spin transition near the top of the lower mantle and an intermediate-spin to low-spin transition near the bottom of the lower mantle. No spin transition is observed to occur in Fe3+ for samples with compositions relevant for the lower mantle.