Relationship Between Structure and Magnetic Behaviour in ZnO-Based Systems

Clara Guglieri Rodríguez (Autor)

Buch | Softcover

XIV, 146 Seiten

2016 | Softcover reprint of the original 1st ed. 2015
Springer International Publishing (Verlag)
9783319386850 (ISBN)

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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.

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.

Erscheinungsdatum	21.10.2016
Reihe/Serie	Springer Theses
Zusatzinfo	XIV, 146 p. 104 illus., 52 illus. in color.
Verlagsort	Cham
Sprache	englisch
Maße	155 x 235 mm
Themenwelt	Naturwissenschaften ► Physik / Astronomie ► Atom- / Kern- / Molekularphysik
Themenwelt	Naturwissenschaften ► Physik / Astronomie ► Elektrodynamik
Schlagworte	Condensed matter physics (liquid state and solid s • Core-shell structure • Electricity, electromagnetism and magnetism • Electronic devices and materials • magnetic semiconductors • Magnetism, Magnetic Materials • Materials Science • Physics • Physics and Astronomy • Quantum Information Technology, Spintronics • Quantum physics (quantum mechanics and quantum fie • semiconductors • Surface and Interface Science, Thin Films • Surface chemistry and adsorption • surface magnetism • Surfaces and Interfaces, Thin Films • X-ray absorption spectroscopy • x-ray magnetic circular dichroism • Zinc oxide nanoparticles
ISBN-13	9783319386850 / 9783319386850
Zustand	Neuware