期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 19, 期 38, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/19/38/386206
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We have investigated the magnetic state of iron in siderite FeCO3 under high pressure using K beta x-ray emission spectroscopy. Pressure induced changes in the shape of the iron K beta emission lines indicate that the iron ground state changes from a low pressure magnetic state to a high pressure non-magnetic state. This transition takes place roughly at 50 GPa. This conclusion is supported by charge transfer multiplet calculations of the iron K beta emission line.
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