Werthamer–Helfand–Hohenberg theory

This theory was proposed in 1966 [1] to go beyond BCS theory of superconductivity and it provides predictions of upper critical field (Hc2) in type-II superconductors.[2][3] The theory predicts the upper critical field (Hc2) at 0 K from Tc and the slope of Hc2 at Tc.

eg Referred : re MgB2 [4]

References

  1. ↑ N. R. Werthamer, E. Helfand, P. C. Hohenberg: Phys. Rev. 147 (1966) 295
  2. ↑ Werthamer, N. R; Helfand, E; Hohenberg, P. C (1966). "Temperature and Purity Dependence of the Superconducting Critical Field,Hc2. III. Electron Spin and Spin-Orbit Effects". Physical Review. 147: 295–302. doi:10.1103/PhysRev.147.295.
  3. ↑ Samuely, P; Szabó, P; Klein, T; Jansen, A. G. M; Marcus, J; Escribe-Filippini, C; Wyder, P (1998). "Upper critical field in Ba1 − xKxBiO3: Magnetotransport vs. Magnetotunneling". Europhysics Letters (Epl). 41 (2): 207–212. arXiv:cond-mat/0103183. doi:10.1209/epl/i1998-00132-1.
  4. ↑ Larbalestier, D. C; Rikel, M. O; Cooley, L. D; Polyanskii, A. A; Jiang, J. Y; Patnaik, S; Cai, X. Y; Feldmann, D. M; Gurevich, A; Squitieri, A. A; Naus, M. T; Eom, C. B; Hellstrom, E. E; Cava, R. J; Regan, K. A; Rogado, N; Hayward, M. A; He, T; Slusky, J. S; Khalifah, P; Inumaru, K; Haas, M (2001). "Strongly linked current flow in polycrystalline forms of the new superconductor MgB2". Nature. 410 (6825): 186–189. arXiv:cond-mat/0102216. doi:10.1038/35065559. PMID 11242073.


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