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Controlling the structure and magnetic properties of cluster-assembled metallic glasses [in press]

Benel, Cahit; Fischer, Arne; Zimina, Anna; Steininger, Ralph; Kruk, Robert; Hahn, Horst; Léon, Aline

Abstract:
The potential to control the structure of amorphous materials and establish correlations with their properties would constitute an extraordinary step in formulating new pathways to design and tailor amorphous structures, which correspondingly would exhibit novel properties. Towards achieving this goal, a bottom-up approach is proposed here. In the present study, cluster-assembled Fe80Sc20 metallic glasses are used as the model systems to illustrate this potentially groundbreaking approach. Accordingly, Fe80Sc20 amorphous films are nanofabricated under well-defined conditions with precise control over cluster size and impact energy. Their local atomic structures are characterized by X-ray absorption spectroscopy around both constituent metals, i.e., Fe and Sc. The capability of controlling the local structure by controlling the deposition energy (i.e., the clusters’ impact energy) has resulted in substantial changes in the magnetic Curie temperature. In fact, the Curie temperature changes by as much as 60 K when the deposition energy is increased from 50 eV per cluster (the lowest deposition energy) to 500 eV per cluster (the highest ... mehr

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Preprint §
DOI: 10.5445/IR/1000090116
Veröffentlicht am 25.01.2019
Originalveröffentlichung
DOI: 10.1039/C8MH01013G
Seitenaufrufe: 24
seit 28.01.2019
Downloads: 20
seit 07.02.2019
Zugehörige Institution(en) am KIT Institut für Technische Chemie und Polymerchemie (ITCP)
Institut für Nanotechnologie (INT)
Institut für Katalyseforschung und -Technologie (IKFT)
Institut für Photonenforschung und Synchrotronstrahlung (IPS)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 2051-6347, 2051-6355
urn:nbn:de:swb:90-901165
KITopen-ID: 1000090116
HGF-Programm 43.22.02 (POF III, LK 01)
Erschienen in Materials Horizons
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