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Colson S, Konczykowski M, Gaifullin MB, et al. Vortex fluctuations in underdoped Bi(2)Sr(2)CaCu(2)O(8+delta) crystals. Phys Rev Lett. 2003;90(13):137002doi: 10.1103/PhysRevLett.90.137002.
Colson, S., Konczykowski, M., Gaifullin, M. B., Matsuda, Y., Gierłowski, P., Li, M., Kes, P. H., & Van Der Beek, C. J. (2003). Vortex fluctuations in underdoped Bi(2)Sr(2)CaCu(2)O(8+delta) crystals. Physical review letters, 90(13), 137002. https://doi.org/10.1103/PhysRevLett.90.137002
Colson, Sylvain, et al. "Vortex fluctuations in underdoped Bi(2)Sr(2)CaCu(2)O(8+delta) crystals." Physical review letters vol. 90,13 (2003): 137002. doi: https://doi.org/10.1103/PhysRevLett.90.137002
Colson S, Konczykowski M, Gaifullin MB, Matsuda Y, Gierłowski P, Li M, Kes PH, Van Der Beek CJ. Vortex fluctuations in underdoped Bi(2)Sr(2)CaCu(2)O(8+delta) crystals. Phys Rev Lett. 2003 Apr 04;90(13):137002. doi: 10.1103/PhysRevLett.90.137002. Epub 2003 Apr 03. PMID: 12689317.
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Phys Rev Lett. 2003 Apr 04;90(13):137002. doi: 10.1103/PhysRevLett.90.137002. Epub 2003 Apr 03.

Vortex fluctuations in underdoped Bi(2)Sr(2)CaCu(2)O(8+delta) crystals.

Physical review letters

Sylvain Colson, Marcin Konczykowski, Marat B Gaifullin, Yuji Matsuda, Piotr Gierłowski, Ming Li, Peter H Kes, Cornelis J Van Der Beek

Affiliations

  1. Laboratoire des Solides Irradiés, CNRS-UMR 7642 and CEA/DSM/DRECAM, Ecole Polytechnique, 91128 Palaiseau, France.

PMID: 12689317 DOI: 10.1103/PhysRevLett.90.137002

Abstract

Vortex thermal fluctuations in heavily underdoped Bi(2)Sr(2)CaCu(2)O(8+delta) (T(c)=69.4 K) are studied using Josephson plasma resonance. From the zero-field data, we obtain the c-axis penetration depth lambda(L,c)(0)=230+/-10 micrometer and the anisotropy ratio gamma(T). The low plasma frequency allows us to study phase correlations over the whole vortex solid state and to extract a wandering length r(w) of vortex pancakes. The temperature dependence of r(w) as well as its increase with dc magnetic field is explained by the renormalization of the vortex line tension by the fluctuations, suggesting that this softening is responsible for the dissociation of the vortices at the first order transition.

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