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Zero-gap materials for future spintronics, electronics and optics

Journal Article


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Abstract


  • Electrons carry both charge and spin. The processing of information in conventional electronic devices is based only on the charge

    of the electrons. Spin electronics, or spintronics, uses the spin of electrons, as well as their charge, to process information. Metals,

    semiconductors and insulators are the basic materials that constitute the components of electronic devices, and these have been

    transforming all aspects of society for over a century. In contrast, magnetic metals, half-metals, magnetic semiconductors, dilute

    magnetic semiconductors and magnetic insulators are the materials that will form the basis for spintronic devices. Materials having

    a zero-energy band gap are a special class of these materials that exhibit some fascinating and superior electronic properties

    compared to materials with a non-zero energy gap. This article reviews a range of materials with zero-gap band structures, focusing

    on materials with quadratic and linear symmetrical dispersions, disorder-induced linear dispersions, asymmetrical linear dispersions

    and topological insulating states. These materials all have intriguing physical properties and numerous potential practical applications

    in spintronics, electronics, optics and sensors.

Publication Date


  • 2010

Citation


  • Wang, X., Dou, S. Xue. & Zhang, C. (2010). Zero-gap materials for future spintronics, electronics and optics. NPG Asia materials, 2 (1), 31-38.

Scopus Eid


  • 2-s2.0-84863116425

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=8459&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5527

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 31

End Page


  • 38

Volume


  • 2

Issue


  • 1

Abstract


  • Electrons carry both charge and spin. The processing of information in conventional electronic devices is based only on the charge

    of the electrons. Spin electronics, or spintronics, uses the spin of electrons, as well as their charge, to process information. Metals,

    semiconductors and insulators are the basic materials that constitute the components of electronic devices, and these have been

    transforming all aspects of society for over a century. In contrast, magnetic metals, half-metals, magnetic semiconductors, dilute

    magnetic semiconductors and magnetic insulators are the materials that will form the basis for spintronic devices. Materials having

    a zero-energy band gap are a special class of these materials that exhibit some fascinating and superior electronic properties

    compared to materials with a non-zero energy gap. This article reviews a range of materials with zero-gap band structures, focusing

    on materials with quadratic and linear symmetrical dispersions, disorder-induced linear dispersions, asymmetrical linear dispersions

    and topological insulating states. These materials all have intriguing physical properties and numerous potential practical applications

    in spintronics, electronics, optics and sensors.

Publication Date


  • 2010

Citation


  • Wang, X., Dou, S. Xue. & Zhang, C. (2010). Zero-gap materials for future spintronics, electronics and optics. NPG Asia materials, 2 (1), 31-38.

Scopus Eid


  • 2-s2.0-84863116425

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=8459&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5527

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 31

End Page


  • 38

Volume


  • 2

Issue


  • 1