High upper critical field and irreversibility field in MgB 2 coated-conductor fibers

V. Ferrando, P. Orgiani, A. V. Pogrebnyakov, J. Chen, Qi Li, J. M. Redwing, X. X. Xi, J. E. Giencke, Chang Beom Eom, Qing Rong Feng, J. B. Betts, C. H. Mielke

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


We report on structural and superconducting properties of round MgB2 coated-conductor fibers deposited by hybrid physical-chemical vapor deposition on SiC fibers. The coating is polycrystalline and composed of elongated crystallites with dimensions less than 1 μm in length and 0.2 μm in width. The pure MgB2 fiber shows a zero-resistance Tc of 39.3 K. The carbon-alloyed fibers show a high upper critical field of 55 T at 1.5 K and a high irreversibility field of 40 T at 1.5 K. The result demonstrates great potential of MgB2 coated conductors for superconducting magnets.

Original languageEnglish (US)
Article number252509
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Issue number25
StatePublished - 2005

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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