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Relationship Between Structure and Magnetic Behaviour in ZnO-Based Systems

  • Clara Guglieri Rodríguez

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xiv
  2. Clara Guglieri Rodríguez
    Pages 1-9
  3. Clara Guglieri Rodríguez
    Pages 11-35
  4. Clara Guglieri Rodríguez
    Pages 37-66
  5. Clara Guglieri Rodríguez
    Pages 97-110
  6. Clara Guglieri Rodríguez
    Pages 135-138
  7. Back Matter
    Pages 139-146

About this book

Introduction

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.

Keywords

Core-shell structure Magnetic semiconductors Surface magnetism X-ray absorption spectroscopy X-ray magnetic circular dichroism Zinc oxide nanoparticles

Authors and affiliations

  • Clara Guglieri Rodríguez
    • 1
  1. 1.Consejo Superior de Investigaciones CientificasUniversity of ZaragozaZaragozaSpain

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-319-18887-4
  • Copyright Information Springer International Publishing Switzerland 2015
  • Publisher Name Springer, Cham
  • eBook Packages Physics and Astronomy
  • Print ISBN 978-3-319-18886-7
  • Online ISBN 978-3-319-18887-4
  • Series Print ISSN 2190-5053
  • Series Online ISSN 2190-5061
  • Buy this book on publisher's site
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