Skip to main content
SpringerLink
Log in

Effects of random biquadratic couplings in a spin-1 spin-glass model

  • Published:
The European Physical Journal B Aims and scope Submit manuscript

Abstract:

A spin-1 model, appropriated to study the competition between bilinear (J ij S i S j ) and biquadratic (K ij S i 2 S j 2) random interactions, both of them with zero mean, is investigated. The interactions are infinite-ranged and the replica method is employed. Within the replica-symmetric assumption, the system presents two phases, namely, paramagnetic and spin-glass, separated by a continuous transition line. The stability analysis of the replica-symmetric solution yields, besides the usual instability associated with the spin-glass ordering, a new phase due to the random biquadratic couplings between the spins.

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. Departamento de Ciências Naturais, Universidade Estadual do Rio Grande do Norte, 59610-210 Mossoró - RN, Brazil, Brazil

    J.M. de Araújo

  2. Departamento de Física Teórica e Experimental, Universidade Federal do Rio Grande do Norte, Campus Universitário, C.P. 1641, 59072-970 Natal - RN, Brazil, Brazil

    F.A. da Costa & F.D. Nobre

Authors
  1. J.M. de Araújo
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. F.A. da Costa
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. F.D. Nobre
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Received 18 May 1999 and Received in final form 20 October 1999

Rights and permissions

Reprints and permissions

About this article

Cite this article

de Araújo, J., da Costa, F. & Nobre, F. Effects of random biquadratic couplings in a spin-1 spin-glass model. Eur. Phys. J. B 14, 661–667 (2000). https://doi.org/10.1007/s100510051076

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s100510051076

Search

Navigation