Small angle neutron diffraction studies of vortex structures in high temperature superconductors

R. Cubitt; E. M. Forgan; M. T. Wylie; G. Yang; S. L. Lee; H. Keller; D. McPaul; H. A. Mook; M. Yethiraj; P. H. Kes; T. W. Li; A. A. Menovsky; Z. Tarnawski; K. Mortensen

doi:10.1016/0921-4534(94)92512-7

Small angle neutron diffraction studies of vortex structures in high temperature superconductors

R. Cubitt^*, E. M. Forgan, M. T. Wylie, G. Yang, S. L. Lee, H. Keller, D. McPaul, H. A. Mook, M. Yethiraj, P. H. Kes, T. W. Li, A. A. Menovsky, Z. Tarnawski, K. Mortensen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

We have used neutron scattering to provide direct information about flux structures in the bulk of crystals of the superconductor Bi₂Sr₂CaCu₂O₈. Its extremely high effective mass anisotropy, makes the flux lattice susceptable to melting and also to decomposition into 'pancake' vortices, which would give a more two-dimensional vortex structure. At low temperatures and fields the scattered intensity is consistent with a three dimensional flux-line structure. At higher fields and temperatures, the scattering from the flux lattice dissapears well below T_c. We can associate this dissappearance with the above changes in the vortex structure. We compare the neutron scattering results with macroscopic measurements of magnetisation.

Original language	English
Pages (from-to)	2583-2584
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	235-240
Issue number	PART 4
DOIs	https://doi.org/10.1016/0921-4534(94)92512-7
Publication status	Published - Dec 1994

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Cubitt, R., Forgan, E. M., Wylie, M. T., Yang, G., Lee, S. L., Keller, H., McPaul, D., Mook, H. A., Yethiraj, M., Kes, P. H., Li, T. W., Menovsky, A. A., Tarnawski, Z., & Mortensen, K. (1994). Small angle neutron diffraction studies of vortex structures in high temperature superconductors. Physica C: Superconductivity and its applications, 235-240(PART 4), 2583-2584. https://doi.org/10.1016/0921-4534(94)92512-7

@article{405968938c31471b90758ee92eeea041,

title = "Small angle neutron diffraction studies of vortex structures in high temperature superconductors",

abstract = "We have used neutron scattering to provide direct information about flux structures in the bulk of crystals of the superconductor Bi2Sr2CaCu2O8. Its extremely high effective mass anisotropy, makes the flux lattice susceptable to melting and also to decomposition into 'pancake' vortices, which would give a more two-dimensional vortex structure. At low temperatures and fields the scattered intensity is consistent with a three dimensional flux-line structure. At higher fields and temperatures, the scattering from the flux lattice dissapears well below Tc. We can associate this dissappearance with the above changes in the vortex structure. We compare the neutron scattering results with macroscopic measurements of magnetisation.",

author = "R. Cubitt and Forgan, {E. M.} and Wylie, {M. T.} and G. Yang and Lee, {S. L.} and H. Keller and D. McPaul and Mook, {H. A.} and M. Yethiraj and Kes, {P. H.} and Li, {T. W.} and Menovsky, {A. A.} and Z. Tarnawski and K. Mortensen",

year = "1994",

month = dec,

doi = "10.1016/0921-4534(94)92512-7",

language = "English",

volume = "235-240",

pages = "2583--2584",

journal = "Physica C: Superconductivity and its applications",

issn = "0921-4534",

publisher = "Elsevier Science BV",

number = "PART 4",

}

Cubitt, R, Forgan, EM, Wylie, MT, Yang, G, Lee, SL, Keller, H, McPaul, D, Mook, HA, Yethiraj, M, Kes, PH, Li, TW, Menovsky, AA, Tarnawski, Z & Mortensen, K 1994, 'Small angle neutron diffraction studies of vortex structures in high temperature superconductors', Physica C: Superconductivity and its applications, vol. 235-240, no. PART 4, pp. 2583-2584. https://doi.org/10.1016/0921-4534(94)92512-7

TY - JOUR

T1 - Small angle neutron diffraction studies of vortex structures in high temperature superconductors

AU - Cubitt, R.

AU - Forgan, E. M.

AU - Wylie, M. T.

AU - Yang, G.

AU - Lee, S. L.

AU - Keller, H.

AU - McPaul, D.

AU - Mook, H. A.

AU - Yethiraj, M.

AU - Kes, P. H.

AU - Li, T. W.

AU - Menovsky, A. A.

AU - Tarnawski, Z.

AU - Mortensen, K.

PY - 1994/12

Y1 - 1994/12

N2 - We have used neutron scattering to provide direct information about flux structures in the bulk of crystals of the superconductor Bi2Sr2CaCu2O8. Its extremely high effective mass anisotropy, makes the flux lattice susceptable to melting and also to decomposition into 'pancake' vortices, which would give a more two-dimensional vortex structure. At low temperatures and fields the scattered intensity is consistent with a three dimensional flux-line structure. At higher fields and temperatures, the scattering from the flux lattice dissapears well below Tc. We can associate this dissappearance with the above changes in the vortex structure. We compare the neutron scattering results with macroscopic measurements of magnetisation.

AB - We have used neutron scattering to provide direct information about flux structures in the bulk of crystals of the superconductor Bi2Sr2CaCu2O8. Its extremely high effective mass anisotropy, makes the flux lattice susceptable to melting and also to decomposition into 'pancake' vortices, which would give a more two-dimensional vortex structure. At low temperatures and fields the scattered intensity is consistent with a three dimensional flux-line structure. At higher fields and temperatures, the scattering from the flux lattice dissapears well below Tc. We can associate this dissappearance with the above changes in the vortex structure. We compare the neutron scattering results with macroscopic measurements of magnetisation.

UR - http://www.scopus.com/inward/record.url?scp=43949159765&partnerID=8YFLogxK

U2 - 10.1016/0921-4534(94)92512-7

DO - 10.1016/0921-4534(94)92512-7

M3 - Article

AN - SCOPUS:43949159765

SN - 0921-4534

VL - 235-240

SP - 2583

EP - 2584

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - PART 4

ER -

Small angle neutron diffraction studies of vortex structures in high temperature superconductors

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