High upper critical field and irreversibility field in MgB2 coated-conductor fibers -: art. no. 252509

被引：33
|
作者：
Ferrando, V
Orgiani, P
Pogrebnyakov, AV
Chen, J
Li, Q
Redwing, JM
Xi, XX [1 ]
Giencke, JE
Eom, CB
Feng, QR
Betts, JB
Mielke, CH
机构：
[1] Penn State Univ, Inst Mat Res, University Pk, PA 16802 USA
[2] Univ Wisconsin, Dept Mat Sci & Engn, Madison, WI 53706 USA
[3] Univ Wisconsin, Ctr Appl Superconduct, Madison, WI 53706 USA
[4] Peking Univ, Dept Phys, Beijing 100871, Peoples R China
[5] Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China
[6] Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA
来源：
APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 25期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1063/1.2149289
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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 mu m in length and 0.2 mu m in width. The pure MgB2 fiber shows a zero-resistance T-c 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. (c) 2005 American Institute of Physics.
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页码：1 / 3
页数：3
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