| Conţinutul numărului revistei |
| Articolul precedent |
| Articolul urmator |
 182 0 |
 SM ISO690:2012DEB, Aniruddha, MIZUMAKI, Masaichiro, MURO, Takayuki, SAKURAI, Yoshiharu, TSURKAN, Vladimir. Soft-x-ray magnetic-circular-dichroism study of the colossal-magnetoresistance spinel Fe0.5Cu0.5Cr2S4. In: Physical Review B - Condensed Matter and Materials Physics, 2003, vol. 68, p. 0. ISSN 1098-0121. DOI: https://doi.org/10.1103/PhysRevB.68.014427 |
| EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
 Physical Review B - Condensed Matter and Materials Physics |
|
| Volumul 68 / 2003 / ISSN 1098-0121 /ISSNe 1550-235X | |
|
|
| DOI:https://doi.org/10.1103/PhysRevB.68.014427 | |
| Pag. 0-0 | |
| Rezumat | |
We have investigated the electronic and magnetic structure of the colossal magnetoresistive Cr-based spinel Fe0.5Cu0.5Cr2S4 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 (Fe3+) 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 Fe3+ are aligned antiparallel to those of the octahedrally coordinated Cr3+. The observed Cu 2p MCD spectra show existence of very small magnetic moments (<0.20μB) 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. |
|
| Cuvinte-cheie absorption, article, circular dichroism, electromagnetic field, magnetism, spectrum, X ray crystallography |
|
|
Dublin Core Export
<?xml version='1.0' encoding='utf-8'?> <oai_dc:dc xmlns:dc='http://purl.org/dc/elements/1.1/' xmlns:oai_dc='http://www.openarchives.org/OAI/2.0/oai_dc/' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd'> <dc:creator>Deb, A.</dc:creator> <dc:creator>Mizumaki, M.</dc:creator> <dc:creator>Muro, T.</dc:creator> <dc:creator>Sakurai, Y.</dc:creator> <dc:creator>Ţurcan, V.V.</dc:creator> <dc:date>2003-07-25</dc:date> <dc:description xml:lang='en'><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> 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> are aligned antiparallel to those of the octahedrally coordinated Cr3+. The observed Cu 2p MCD spectra show existence of very small magnetic moments (<0.20μ<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></dc:description> <dc:identifier>10.1103/PhysRevB.68.014427</dc:identifier> <dc:source>Physical Review B - Condensed Matter and Materials Physics () 0-0</dc:source> <dc:subject>absorption</dc:subject> <dc:subject>article</dc:subject> <dc:subject>circular dichroism</dc:subject> <dc:subject>electromagnetic field</dc:subject> <dc:subject>magnetism</dc:subject> <dc:subject>spectrum</dc:subject> <dc:subject>X ray crystallography</dc:subject> <dc:title>Soft-x-ray magnetic-circular-dichroism study of the colossal-magnetoresistance spinel Fe0.5Cu0.5Cr2S4</dc:title> <dc:type>info:eu-repo/semantics/article</dc:type> </oai_dc:dc>
|
|
|
