Relationship Between Structure and Magnetic Behaviour in ZnO-Based Systems

von Clara Guglieri Rodríguez
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Clara Guglieri Rodríguez Relationship Between Structure and Magnetic Behaviour in ZnO-Based Systems
Clara Guglieri Rodríguez - Relationship Between Structure and Magnetic Behaviour in ZnO-Based Systems

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Beschreibung

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.

Mitwirkende

Autor:
Clara Guglieri Rodríguez

Weitere Informationen

Anmerkung Illustrationen:
7 schwarz-weiße und 97 farbige Abbildungen, Bibliographie
Bemerkungen:

Nominated as an outstanding Ph.D. thesis by the University of Zaragoza, Spain


Proves the intrinsic nature of the high-temperature ferromagnetism found in ZnO semiconductor materials and its relationship to structural properties


Provides direct support for the occurrence of oxygen ferromagnetism in oxide semiconductors


Includes supplementary material: sn.pub/extras

Medientyp:
Buch gebunden
Verlag:
Springer International Publishing
Sprache:
Englisch
Seitenanzahl:
146

Stammdaten

Produkttyp:
Buch Gebunden
Verpackungsabmessungen:
0.236 x 0.162 x 0.016 m; 0.408 kg
GTIN:
09783319188867
DUIN:
2B5QQ686LQV
€ 80,36
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