Skip to main content
SpringerLink
Log in

Superconductivity at 45 K in La2CuO4+δ oxidized by NaClO

  • Published:
Applied Physics A Aims and scope Submit manuscript

Abstract

An efficient and convenient oxidizing agent, sodium hypochlorite solution, has been used to chemically prepare the superconductor La2CuO4+δ at room temperature. The crystallographic data show an enhanced orthorhombic distortion and an increase of the unit-cell volume. The magnetic susceptibility properties reveal a sharp transition beginning at 45 K and the oxidized sample is a homogeneous and single-phase bulk superconductor. The iodometric titration measurements indicate that the oxidized sample has a higher excess-oxygen content of 0.11. Scanning electron microscope observations showed that no grain size difference was observed for the sample before and after oxidation.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Author information

Authors and Affiliations

  1. Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, P.R. China, CN

    Q.Y. Tu, X.L. Chen, Z.X. Zhao, Y.C. Lan & J.K. Liang

  2. Department of Physics, Beijing Normal University, Beijing 100875, P.R. China, CN

    B.K. Ma

Authors
  1. Q.Y. Tu
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. X.L. Chen
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. B.K. Ma
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Z.X. Zhao
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Y.C. Lan
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. J.K. Liang
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Received: 15 September 2000 / Accepted: 19 January 2001 / Published online: 3 April 2001

Rights and permissions

Reprints and permissions

About this article

Cite this article

Tu, Q., Chen, X., Ma, B. et al. Superconductivity at 45 K in La2CuO4+δ oxidized by NaClO. Appl Phys A 74, 79–82 (2002). https://doi.org/10.1007/s003390100839

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s003390100839

Search

Navigation