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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页数：3

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