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Small-angle neutron scattering study of the vortex lattice in superconducting LuNi2B2C
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Densmore, J. M., Das, P., Rovira, K., Blasius, T. D., DeBeer-Schmitt, L., Jenkins, N., Paul, Don McK., Dewhurst, C. D., Bud'ko, S. L., Canfield, P. C. and Eskildsen, M. R. (2009) Small-angle neutron scattering study of the vortex lattice in superconducting LuNi2B2C. Physical Review B (Condensed Matter and Materials Physics), Vol.79 (No.17). Article no. 174522. doi:10.1103/PhysRevB.79.174522 ISSN 1098-0121.
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Official URL: http://dx.doi.org/10.1103/PhysRevB.79.174522
Abstract
We present studies of the magnetic field distribution around the vortices in LuNi2B2C. Small-angle neutron scattering measurements of the vortex lattice (VL) in this material were extended to unprecedentedly large values of the scattering vector q, obtained both by using high magnetic fields to decrease the VL spacing and by using higher order reflections. A square VL, oriented with the nearest-neighbor direction along the crystalline [110] direction, was observed up to the highest measured field. The first-order VL form factor, parallel to F(q(10))parallel to, was found to decrease exponentially with increasing magnetic field. Measurements of the higher-order form factors, parallel to F(q(hk))parallel to, reveal a significant in-plane anisotropy and also allow for a real-space reconstruction of the VL field distribution.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Journal or Publication Title: | Physical Review B (Condensed Matter and Materials Physics) | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 1098-0121 | ||||
| Official Date: | May 2009 | ||||
| Dates: |
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| Volume: | Vol.79 | ||||
| Number: | No.17 | ||||
| Number of Pages: | 7 | ||||
| Page Range: | Article no. 174522 | ||||
| DOI: | 10.1103/PhysRevB.79.174522 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | National Science Foundation, Alfred P. Sloan Foundation, Department of Energy, Basic Energy Sciences | ||||
| Grant number: | DMR-0804887, PHY-0552843, DE-AC02-07CH11358 |
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