Superconducting bubbles percolation in the pseudogap phase for (Hg,Re) – 1223 ceramics

Superconducting bubbles percolation in the pseudogap phase for (Hg,Re) – 1223 ceramics

Amorim, L.; Orlando, M.T.D.; Belich, H.; Passos, C.A.C.; Espinoza, J. O.

Artigo Completo :

One of the open challenges to be solved in high Tc superconductors physics is the problem of the pseudogap phase [1], which is found in the temperature T* above Tc. The pseudogap phase is characterized by the drop of resistivity with the temperature slightly below the linearity. In this work we believe that this unusual fall is due the formation of small supercondsting fluctuations, referred as “bubbles”, that convulate at the pseudogap temperature and form a narrow path for a superconducting current, made from the clusterization of the bubbles. This does not get to the properly superconducting phase because the cluster is still incipient, but the current of this optimized path competes with the normal current.

One of the open challenges to be solved in high Tc superconductors physics is the problem of the pseudogap phase [1], which is found in the temperature T* above Tc. The pseudogap phase is characterized by the drop of resistivity with the temperature slightly below the linearity. In this work we believe that this unusual fall is due the formation of small supercondsting fluctuations, referred as “bubbles”, that convulate at the pseudogap temperature and form a narrow path for a superconducting current, made from the clusterization of the bubbles. This does not get to the properly superconducting phase because the cluster is still incipient, but the current of this optimized path competes with the normal current.

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DOI: 10.5151/phypro-ecfa-042

Referências bibliográficas

• [1] [1] PASSOS, C. A. C. et al.; Phys. Rev. B 74, 1, 2006.
• [2] [2] TIMUSK, T.; STATT, B. Rep. Prog. Phys. 62, 61, 1999.
• [3] [3] TINKHAM, M. Introduction to Superconductivity. Dover Publications, Inc. Mineola, New York. 1996. P. 310 – 312.
• [4] [4] WU, Z. et al., Phys. Rev. E 71, 045101, 2005.

Como citar:

Amorim, L.; Orlando, M.T.D.; Belich, H.; Passos, C.A.C.; Espinoza, J. O.; "Superconducting bubbles percolation in the pseudogap phase for (Hg,Re) – 1223 ceramics", p-90-91. In: Anais do V Encontro Científico de Física Aplicada [= Blucher Physics Proceedings, n.1, v.1]. São Paulo: Blucher, 2014.
ISSN 23582359, DOI 10.5151/phypro-ecfa-042