Relationship Between Structure and Magnetic Behaviour in ZnO-Based Systems
(Sprache: Englisch)
This work studies the magnetic behavior of ZnO nanoparticles capped with different organic molecules and showing room-temperature ferromagnetism (RTFM). Of particular significance is the combination of element-specific X-ray absorption spectroscopy (XAS)...
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Klappentext zu „Relationship Between Structure and Magnetic Behaviour in ZnO-Based Systems “
This work studies the magnetic behavior of ZnO nanoparticles capped with different organic molecules and showing room-temperature ferromagnetism (RTFM). Of particular significance is the combination of element-specific X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD) techniques, which demonstrates the intrinsic occurrence of RTFM in these systems and indicates that it is not related to the 3-D states of the metallic cation but is relayed along the conduction band of the semiconductor. The discovery of room-temperature ferromagnetism (RTFM) in semiconductors holds great promise in future spintronics technologies. Further results presented here include O K-edge XMCD studies, which demonstrate that the oxygen ions have a ferromagnetic response in these ZnO-based systems, providing the first direct support for claims regarding the appearance of oxygen ferromagnetism in oxide semiconductors at the nanoscale.
Inhaltsverzeichnis zu „Relationship Between Structure and Magnetic Behaviour in ZnO-Based Systems “
Introduction.- Synthesis and In-House Characterization.- XAS and XMCD Spectroscopies.- Zinc K-Edge X-Ray Absorption Study.- Zinc K-Edge XMCD Study.- Soft X-Ray XAS and XMCD Study.- Summary and Conclusions.- Appendices.- Bibliography.
Bibliographische Angaben
- Autor: Clara Guglieri
- 2015, 2015, XIV, 146 Seiten, 52 farbige Abbildungen, Masse: 16 x 24,1 cm, Gebunden, Englisch
- Verlag: Springer, Berlin
- ISBN-10: 3319188860
- ISBN-13: 9783319188867
- Erscheinungsdatum: 12.06.2015
Sprache:
Englisch
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