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<identifier identifierType='DOI'>10.1103/PhysRevB.68.014427</identifier>
<creators>
<creator>
<creatorName>Deb, A.</creatorName>
<affiliation>Japan Synchrotron Radiation Research Institute, Sayo, Hyogo, Japonia</affiliation>
</creator>
<creator>
<creatorName>Mizumaki, M.</creatorName>
<affiliation>Japan Synchrotron Radiation Research Institute, Sayo, Hyogo, Japonia</affiliation>
</creator>
<creator>
<creatorName>Muro, T.</creatorName>
<affiliation>Japan Synchrotron Radiation Research Institute, Sayo, Hyogo, Japonia</affiliation>
</creator>
<creator>
<creatorName>Sakurai, Y.</creatorName>
<affiliation>Japan Synchrotron Radiation Research Institute, Sayo, Hyogo, Japonia</affiliation>
</creator>
<creator>
<creatorName>Ţurcan, V.V.</creatorName>
<affiliation>Institutul de Fizică Aplicată al AŞM, Moldova, Republica</affiliation>
</creator>
</creators>
<titles>
<title xml:lang='en'>Soft-x-ray magnetic-circular-dichroism study of the colossal-magnetoresistance spinel Fe0.5Cu0.5Cr2S4</title>
</titles>
<publisher>Instrumentul Bibliometric National</publisher>
<publicationYear>2003</publicationYear>
<relatedIdentifier relatedIdentifierType='ISSN' relationType='IsPartOf'>1098-0121</relatedIdentifier>
<subjects>
<subject>absorption</subject>
<subject>article</subject>
<subject>circular dichroism</subject>
<subject>electromagnetic field</subject>
<subject>magnetism</subject>
<subject>spectrum</subject>
<subject>X ray crystallography</subject>
</subjects>
<dates>
<date dateType='Issued'>2003-07-25</date>
</dates>
<resourceType resourceTypeGeneral='Text'>Journal article</resourceType>
<descriptions>
<description xml:lang='en' descriptionType='Abstract'><p>We have investigated the electronic and magnetic structure of the colossal magnetoresistive Cr-based spinel Fe<sub>0.5</sub>Cu<sub>0.5</sub>Cr<sub>2</sub>S<sub>4</sub>&nbsp;employing magnetic circular dichroism (MCD) of core level absorption (x-ray absorption spectroscopy) spectra in the soft x-ray region. The results here clearly establish that Fe is in the formal trivalent state (Fe<sup>3+</sup>) in this compound, resolving previous controversies. The Cr 2p and Fe 2p x-ray absorption and MCD spectra shows that the magnetic moment of the tetrahedrally coordinated Fe<sup>3+</sup>&nbsp;are aligned antiparallel to those of the octahedrally coordinated Cr3+. The observed Cu 2p MCD spectra show existence of very small magnetic moments (&lt;0.20&mu;<sub>B</sub>) on the copper sites. The magnetic moments at the Fe and the Cr sites have been obtained based on the magneto-optical sum rules. The results are consistent with the band structure calculation based on the full potential augmented plane wave method.</p></description>
</descriptions>
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<format>uri</format>
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