10.1186/2251-7235-6-38

Spinâlattice coupling in iron-pnictide superconductors: a model for possible continuous phase transition

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  • Chinedu E Ekuma1,
  • Ephriam O Chukwuocha2,
  • Michael C Onyeaju2,
  1. Department of Physics, Computational Material Physics Group, University of Port Harcourt;Department of Physics and Astronomy, Louisiana State University
  2. Department of Physics, Computational Material Physics Group, University of Port Harcourt

Published in Issue 2023-11-17

How to Cite

1.
Ekuma CE, Chukwuocha EO, Onyeaju MC. Spin–lattice coupling in iron-pnictide superconductors: a model for possible continuous phase transition. J Theor Appl phys. 2023 Nov. 17;6(1). Available from: https://oiccpress.com/jtap/article/view/2063
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Abstract

AbstractA systematic study of the dependence of the local magnetic moment, M, on the Fe-Pn layer separation has been carried out. Within the Ehrenfest classification of orders of phase transition, we propose a continuous (>2) phase transition for studying the dependence of M on the Fe-Pn layer separation. Our model is tested with available experimental data.

Keywords

  • 64.60.av,
  • 74.20.De,
  • 74.40,
  • 74.70.Kn,
  • 82.35.Jk,
  • Continuous phase transition,
  • Ehrenfest theory,
  • Euler,
  • Fe,
  • Ginzburg,
  • Lagrange equation,
  • Landau theory,
  • Magnetic moment,
  • N,
  • Pnictide superconductors
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