IDEAS home Printed from https://ideas.repec.org/a/wsi/srlxxx/v09y2002i02ns0218625x02003330.html
   My bibliography  Save this article

ELECTRONIC STRUCTURES OFLa0.7Ca0.3MnO3ANDLa0.7Ce0.3MnO3BY X-RAY ABSORPTION SPECTROSCOPY

Author

Listed:
  • K. ASOKAN

    (Department of Physics, Tamkang University, Tamsui 251, Taiwan, R.O.C.)

  • K. V. R. RAO

    (Department of Physics, Tamkang University, Tamsui 251, Taiwan, R.O.C.)

  • J. C. JAN

    (Department of Physics, Tamkang University, Tamsui 251, Taiwan, R.O.C.)

  • J. W. CHIOU

    (Department of Physics, Tamkang University, Tamsui 251, Taiwan, R.O.C.)

  • W. F. PONG

    (Department of Physics, Tamkang University, Tamsui 251, Taiwan, R.O.C.)

  • RAVI KUMAR

    (Nuclear Science Centre, Aruna Asaf Ali Marg, New Delhi-110 067, India)

  • SHAHID HUSAIN

    (Department of Physics, Aligarh Muslim University, Aligarh-202002, India)

  • J. P. SRIVASTAVA

    (Department of Physics, Aligarh Muslim University, Aligarh-202002, India)

Abstract

Electronic structures of hole-doped and electron hole-doped manganites,La0.7Ca0.3MnO3andLa0.7Ce0.3MnO3, have been elucidated by X-ray absorption near-edge structure (XANES) spectra of OK- and MnL3,2-edges. In the electron-doped system,La0.7Ce0.3MnO3, the spectral features of OK-edge spectra are shifted by ~ 1 eV towards the higher energy side and reduction of Mn valency from4+and3+to3+and2+is expected when compared to hole-doped manganite. The XANES of CeM5,4-edges indicates a tetravalent state for Ce, similar to that inCeO2.Ce4+is incorporated into the lattice ofLaMnO3, resulting in the modification ofMnO6octahedra and also indicating strong hybridization of Ce 5d and/or Ce 4f states with O 2p states.

Suggested Citation

  • K. Asokan & K. V. R. Rao & J. C. Jan & J. W. Chiou & W. F. Pong & Ravi Kumar & Shahid Husain & J. P. Srivastava, 2002. "ELECTRONIC STRUCTURES OFLa0.7Ca0.3MnO3ANDLa0.7Ce0.3MnO3BY X-RAY ABSORPTION SPECTROSCOPY," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 9(02), pages 1053-1057.
    • Handle: RePEc:wsi:srlxxx:v:09:y:2002:i:02:n:s0218625x02003330
    DOI: 10.1142/S0218625X02003330
    as

    Download full text from publisher

    File URL: http://www.worldscientific.com/doi/abs/10.1142/S0218625X02003330
    Download Restriction: Access to full text is restricted to subscribers
    File URL: https://libkey.io/10.1142/S0218625X02003330?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:wsi:srlxxx:v:09:y:2002:i:02:n:s0218625x02003330. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Tai Tone Lim (email available below). General contact details of provider: http://www.worldscinet.com/srl/srl.shtml .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.