A Small Angle Neutron Scattering Study of the Vortex Matter in La2-xSrxCuO4 (x = 0.17)

R Gilardi, S Streule, J Mesot, AJ Drew, U Divakar, Stephen Leslie Lee, SP Brown, EM Forgan, N Momono, M Oda

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7 Citations (Scopus)


The magnetic phase diagram of slightly overdoped La2-xSrxCuO4 (x = 0.17) is characterised by a field-induced hexagonal to square transition of the vortex lattice at low fields (similar to0.4 Tesla) [R. Gilardi et al., Phys. Rev. Lett. 88, 217003 (2002)]. Here we report on a small angle neutron scattering study of the vortex lattice at higher fields, that reveals no further change of the coordination of the square vortex lattice up to 10.5 Tesla applied perpendicular to the CuO2 planes. Moreover, it is found that the diffraction signal disappears at temperatures well below T-c, due to the melting of the vortex lattice.

Original languageEnglish
Pages (from-to)3411-3414
Number of pages4
JournalInternational Journal of Modern Physics B
Issue number18-20
Publication statusPublished - 10 Aug 2003
Event4th International Conference on New Theories, Discoveries and Applications of Superconductors and Related Materials - San Diego, CA, United States
Duration: 16 Jan 200321 Jan 2003


  • small angle neutron scattering
  • vortex lattice
  • La2-xSrxCuO4


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