Positive Field-Cooled Susceptibility in Multiply Connected Type-I Superconductors

Roberto De Luca

Physics Department “E. R. Caianiello”, University of Salerno, Fisciano, Italy.

DOI: 10.4236/jmp.2013.46A002                

Abstract

A detailed analysis of the magnetic response of field-cooled type-I superconducting hollow cylinders shows that the so-called “paramagnetic Meissner effect” can take place in opportunely devised multiply connected superconductors. Adopting simple circuital analogs of the latter superconducting systems, the magnetic susceptibility of micro-cylinders with one or two holes is studied by means of energy considerations.

Keywords

Paramagnetic Meissner Effect; Non-Simply Connected Superconductors; Magnetic Susceptibility

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	V. V. Schmidt, “The Physics of Superconductors,” In: P. Muller and A. V. Ustinov, Eds., The Physics of Superconductors, Springer, Berlin, 1997, p. 4.
[2]	J. G. Bednorz and K. A. Müller, Chinese Physics Letters, Vol. 64, 1986, pp. 189-193. doi:10.1007/BF01303701
[3]	W. Braunish, N. Knauf, G. Bauer, A. Kock, A. Becker, B. Freitag, A. Grütz, V. Kataev, S. Neuhausen, B. Roden, D. Khomskii, D. Wohlleben, J. Bock and E. Preisler, Physical Review B, Vol. 48, 1993, p. 4030. doi:10.1103/PhysRevB.48.4030
[4]	K. A. Müller, M. Tagashike and J. G. Bednorz, Physical Review Letters, Vol. 58, 1987, p. 1143. doi:10.1103/PhysRevLett.58.1143
[5]	R. De Luca, Physica C, Vol. 400, 2004, pp. 153-159. doi:10.1016/j.physc.2003.08.002
[6]	R. De Luca, Physica B, Vol. 284-288, 2000, pp. 801-802. doi:10.1016/S0921-4526(99)02101-8
[7]	W. L. Goodman and B. S. Deaver, Physical Review Letters, Vol. 24, 1970, p. 80. doi:10.1103/PhysRevLett.24.870