X-ray Spectroscopy and Magnetism in Mineralogy

Sainctavit, Philippe; Brice-Profeta, S.; Gaudry, Émilie; Letard, I.; Arrio, Marie‐Anne

doi:10.1007/3-540-33242-1_14

Cited by 1 publication

(1 citation statement)

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“…Circular polarized X-rays are used to measure X-ray Magnetic Circular Dichroism (XMCD) that is used to study magnetic systems as well as magnetized paramagnetic centers. For further details we refer to dedicated reviews on XMCD [247,248,268,283,227]. The XMCD sum rules are briefly discussed in Section 5.3.…”

Section: Theory D: Linear Dichroism and Xmcdmentioning

confidence: 99%

The iron L edges: Fe 2p X-ray absorption and electron energy loss spectroscopy

Miedema

Groot

2013

Journal of Electron Spectroscopy and Related Phenomena

128

106

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The iron L edges are reviewed. The experimental spectra obtained with 2p XAS, XMCD and 2p EELS are discussed, including isolated iron atoms, solids and coordination compounds. The largest fraction of publications deal with iron oxide systems that are discussed in detail, including binary oxides, perovskites and spinel systems. Emphasis is given on fundamental studies that focus on spectral shape analysis. We have selected a number of applications for further discussion, including iron in astrochemistry, iron complexes and nanostructures in catalysis, iron in mineralogy, the pnictide superconductors, spin crossover systems and phthalocyanine and related systems. Some of the important theoretical concepts in the analysis of L edges are discussed, including atomic multiplet theory, crystal field theory, charge transfer theory and XMCD. The 2p XAS spectra contain much detail for halides, oxides and coordination compounds. These spectra can be analyzed in great detail, revealing much information, including the valence, the spin state and the crystal field parameters. Covalent compounds and metal alloys have spectra with much less detail, which makes analysis more difficult.

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