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Supraconductivité |  |
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Supraconductivité | |
| HAL : hal-00533216, version 1 |
| Fiche détaillée |  Récupérer au format |
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| Physical Review B 79 (2009) 184511 |
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| Structure of the flux lines lattice in NbSe2: Equilibrium state and influence of the magnetic history |
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| Alain Pautrat 1M. Aburas 1 |
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| (01/05/2009) |
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| We have performed small-angle neutron scattering of the flux line lattice (FLL) in a Fe-doped NbSe2 sample which presents a large peak effect in the critical current. The scattered intensity and the width of the Bragg peaks of the equilibrium FLL indicate an ordered structure in the peak effect zone. The history dependence in the FLL structure has been studied using field-cooled and zero-field-cooled procedures, and each state shows the same intensity of Bragg scattering and good orientational order. These results strongly suggest that the peak effect is unrelated to a bulk-disordering transition and confirm the role of a heterogeneous distribution of screening current. |
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| 1 : | Laboratoire de cristallographie et sciences des matériaux (CRISMAT) |
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CNRS : UMR6508 – Université de Caen Basse-Normandie – Ecole Nationale Supérieure d'Ingénieurs de Caen |
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| 2 : | Laboratoire Pierre Aigrain (LPA) |
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CNRS : UMR8551 – Université Pierre et Marie Curie [UPMC] - Paris VI – Université Paris VII - Paris Diderot – Ecole normale supérieure de Paris - ENS Paris |
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| 3 : | Laboratoire Léon Brillouin (LLB) |
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CNRS : UMR12 – CEA : DSM/IRAMIS |
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| 4 : | Institut Laue Langevin |
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Institut Laue Langevin |
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| 5 : | School of Technology and Computer Science [Mumbai] |
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Tata Institute of Fundamental Research, Mumbai |
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| 6 : | Rutgers University |
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Rutgers University |
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| Domaine | : | Physique/Matière Condensée/Supraconductivité |
| hal-00533216, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00533216 | |
| oai:hal.archives-ouvertes.fr:hal-00533216 | |
| Contributeur : Michael Rosticher | |
| Soumis le : Vendredi 5 Novembre 2010, 14:53:25 | |
| Dernière modification le : Lundi 8 Novembre 2010, 11:49:30 | |
