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  Structural and magnetic properties of Co2FeAl1-xSix

Balke, B., Fecher, G. H., & Felser, C. (2007). Structural and magnetic properties of Co2FeAl1-xSix. Applied Physics Letters, 90(24): 242503, pp. 1-3. doi:10.1063/1.2748341.

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Datensatz-Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-887B-B Versions-Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-8885-4
Genre: Zeitschriftenartikel

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 Urheber:
Balke, Benjamin1, Autor
Fecher, Gerhard H., Autor
Felser, Claudia2, Autor              
Affiliations:
1external, ou_persistent22              
2External Organizations, ou_persistent22              

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 Zusammenfassung: This work reports about the structural and magnetic properties of the quaternary Heusler alloy Co2FeAl1-xSix with varying Si concentration. The structure of the Co2FeAl1-xSix solid solution was investigated by means of x-ray diffraction and differential scanning calorimetry. It is found that the alloys exhibit the L2(1) structure for x >= 0.4. Depending on the Si concentration x, a structural phase transition is found at temperatures between 1000 and 1200 K. The transition temperature decreases with increasing Si content x. The magnetic properties were studied using low temperature magnetometry. For x >= 0.4, the magnetization of the compounds is in agreement with a Slater-Pauling-like behavior and with the values obtained from ab initio calculations. For x <= 0.4, enlarged magnetic moments are found due to disorder. The enlarged values are explained by an increase of the Co spin moments and enhanced orbital moments. (c) 2007 American Institute of Physics.

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 Datum: 2007-06-11
 Publikationsstatus: Im Druck publiziert
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: ISI: 000247305400058
DOI: 10.1063/1.2748341
 Art des Abschluß: -

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Titel: Applied Physics Letters
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Melville, NY : American Institute of Physics
Seiten: - Band / Heft: 90 (24) Artikelnummer: 242503 Start- / Endseite: 1 - 3 Identifikator: Anderer: 0003-6951
CoNE: /journals/resource/954922836223