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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2007

Persistence of an ordered flux line lattice above the second peak in Bi2Sr2CaCu2O8+

Résumé

We report small angle neutron scattering measurements of the flux lines lattice (FLL) in Bi2Sr2CaCu2O8+. As previously reported, the scattered intensity decreases strongly when the magnetic field is increased, but it remains measurable far above the second peak. The direct observation of Bragg peaks proves that the characteristics of a lattice are still present. No structural features related to a symmetry breaking, such as a liquidlike or an amorphous state, can be observed. However, the associated scattered intensity is very low and is difficult to explain. We discuss the coexistence between two FLL states as a possible interpretation.
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Dates et versions

hal-00290591 , version 1 (25-06-2008)

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  • HAL Id : hal-00290591 , version 1

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Christophe Goupil, Alain Pautrat, Charles Simon, Patrice Mathieu, Annie Brûlet, et al.. Persistence of an ordered flux line lattice above the second peak in Bi2Sr2CaCu2O8+. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2007, 75, pp.224512. ⟨hal-00290591⟩
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