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Intrinsic behavior of flux lines in pure niobium near the upper critical field
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UNSPECIFIED (2002) Intrinsic behavior of flux lines in pure niobium near the upper critical field. PHYSICAL REVIEW LETTERS, 88 (16). -. doi:10.1103/PhysRevLett.88.167003 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.88.167003
Abstract
We report small-angle neutron-scattering (SANS) measurements of flux line properties near H-c2 in an ultrapure sample of niobium with weak pinning of flux in the bulk. These confirm in detail the Abrikosov picture of the flux line lattice to within 20 mK of the upper critical field line. However, it has recently been claimed [X. S. Ling et al., Phys. Rev. Lett. 86, 712 (2001)], on the basis of SANS observations of a disordering of flux lines in niobium, that the flux lattice melts at temperatures clearly separated from the upper critical field line. This discrepancy may possibly arise from differences in sample purity and pinning.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Journal or Publication Title: | PHYSICAL REVIEW LETTERS | ||||
| Publisher: | AMERICAN PHYSICAL SOC | ||||
| ISSN: | 0031-9007 | ||||
| Official Date: | 22 April 2002 | ||||
| Dates: |
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| Volume: | 88 | ||||
| Number: | 16 | ||||
| Number of Pages: | 4 | ||||
| Page Range: | - | ||||
| DOI: | 10.1103/PhysRevLett.88.167003 | ||||
| Publication Status: | Published |
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