High critical current densities in superconducting MgB2 thin films

被引：106

作者：

Moon, SH ^{[1
]}

Yun, JH ^{[1
]}

Lee, HN ^{[1
]}

Kye, JI ^{[1
]}

Kim, HG ^{[1
]}

Chung, W ^{[1
]}

Oh, B ^{[1
]}

机构：

[1] LG Elect Inst Technol, Seoul 137724, South Korea

来源：

APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 15期

关键词：

D O I：

10.1063/1.1407854

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Superconducting MgB2 thin films were prepared on Al2O3(0001) and MgO(100) substrates. Boron thin films were deposited by the electron-beam evaporation followed by postannealing process with magnesium. Proper postannealing conditions were investigated to grow good superconducting MgB2 thin films. The x-ray diffraction patterns showed randomly oriented growth of MgB2 phase in our thin films. The surface morphology was examined by scanning electron microscope and atomic force microscope. Critical current density (J(C)) measured by transport method was about 10(7) A/cm(2) at 15 K, and superconducting transition temperature (T-C) was similar to 39 K in the MgB2 thin films on Al2O3. (C) 2001 American Institute of Physics.

引用

页码：2429 / 2431

页数：3

共 11 条

[1]

BRINKMAN A, 2001, CONDMAT0103198

[2] Boron isotope effect in superconducting MgB2 [J].

Bud'ko, SL ;

Lapertot, G ;

Petrovic, C ;

Cunningham, CE ;

Anderson, N ;

Canfield, PC .

PHYSICAL REVIEW LETTERS, 2001, 86 (09) :1877-1880

[3] Superconductivity in dense MgB2 wires [J].

Canfield, PC ;

Finnemore, DK ;

Bud'ko, SL ;

Ostenson, JE ;

Lapertot, G ;

Cunningham, CE ;

Petrovic, C .

PHYSICAL REVIEW LETTERS, 2001, 86 (11) :2423-2426

[4]

CHRISTEN HM, 2001, CONDMAT0103478

[5] High critical current density and enhanced irreversibility field in superconducting MgB2 thin films [J].

Eom, CB ;

Lee, MK ;

Choi, JH ;

Belenky, LJ ;

Song, X ;

Cooley, LD ;

Naus, MT ;

Patnaik, S ;

Jiang, J ;

Rikel, M ;

Polyanskii, A ;

Gurevich, A ;

Cai, XY ;

Bu, SD ;

Babcock, SE ;

Hellstrom, EE ;

Larbalestier, DC ;

Rogado, N ;

Regan, KA ;

Hayward, MA ;

He, T ;

Slusky, JS ;

Inumaru, K ;

Haas, MK ;

Cava, RJ .

NATURE, 2001, 411 (6837) :558-560

[6] High intergranular critical currents in metallic MgB2 superconductor [J].

Kambara, M ;

Babu, NH ;

Sadki, ES ;

Cooper, JR ;

Minami, H ;

Cardwell, DA ;

Campbell, AM ;

Inoue, IH .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2001, 14 (04) :L5-L7

[7] MgB2 superconducting thin films with a transition temperature of 39 kelvin [J].

Kang, WN ;

Kim, HJ ;

Choi, EM ;

Jung, CU ;

Lee, SL .

SCIENCE, 2001, 292 (5521) :1521-1523

[8] Strongly linked current flow in polycrystalline forms of the superconductor MgB2 [J].

Larbalestier, DC ;

Cooley, LD ;

Rikel, MO ;

Polyanskii, AA ;

Jiang, J ;

Patnaik, S ;

Cai, XY ;

Feldmann, DM ;

Gurevich, A ;

Squitieri, AA ;

Naus, MT ;

Eom, CB ;

Hellstrom, EE ;

Cava, RJ ;

Regan, KA ;

Rogado, N ;

Hayward, MA ;

He, T ;

Slusky, JS ;

Khalifah, P ;

Inumaru, K ;

Haas, M .

NATURE, 2001, 410 (6825) :186-189

[9]

MOON S, 2001, P APS M SEATTL WASH

[10] Superconductivity at 39 K in magnesium diboride [J].

Nagamatsu, J ;

Nakagawa, N ;

Muranaka, T ;

Zenitani, Y ;

Akimitsu, J .

NATURE, 2001, 410 (6824) :63-64

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