Pinning enhancement in M/MgB2 (M=Ag, Cu and Nb) system

被引：7

作者：

Kimishima, Y. ^{[1
]}

Takami, S. ^{[1
]}

Uehara, M. ^{[1
]}

Okuda, T. ^{[1
]}

Kuramoto, T. ^{[1
]}

机构：

[1] Yokohama Natl Univ, Grad Sch Engn, Dept Phys, Hodogaya Ku, Yokohama, Kanagawa 2408501, Japan

来源：

7TH EUROPEAN CONFERENCE ON APPLIED SUPERCONDUCTIVITY (EUCAS'05) | 2006年 / 43卷

关键词：

D O I：

10.1088/1742-6596/43/1/121

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

J(c) enhancements in M/MgB2 (M=Ag, Cu and Nb) system at 20 K and 1 T were first observed in the sintered bulk samples with small amount of M. They were prepared from the mixture of Mg, B and MmOn in the 10%H-2/Ar atmosphere at 900 degrees C for 30 minutes. The largest J(c) of M=Ag, Cu and Nb system were 1.33-, 1.48- and 1.70-times larger than that of pure MgB2, respectively.

引用

页码：488 / 491

页数：4

共 18 条

[1] HARD SUPERCONDUCTIVITY - THEORY OF MOTION OF ABRIKOSOV FLUX LINES [J].

ANDERSON, PW ;

KIM, YB .

REVIEWS OF MODERN PHYSICS, 1964, 36 (1P1) :39-&

[2] MAGNETIZATION OF HIGH-FIELD SUPERCONDUCTORS [J].

BEAN, CP .

REVIEWS OF MODERN PHYSICS, 1964, 36 (1P1) :31-+

[3] An overview of the basic physical properties of MgB2 [J].

Canfield, PC ;

Bud'ko, SL ;

Finnemore, DK .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2003, 385 (1-2) :1-7

[4] Chemical doping effect on the crystal structure and superconductivity of MgB2 [J].

Cheng, CH ;

Zhao, Y ;

Zhu, XT ;

Nowotny, J ;

Sorrell, CC ;

Finlayson, T ;

Zhang, H .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2003, 386 :588-592

[5]

Cheng N, 2002, MOL CANCER RES, V1, P2

[6] Superconducting properties of the powder-in-tube Cu-Mg-B and Ag-Mg-B wires [J].

Glowacki, BA ;

Majoros, M ;

Vickers, ME ;

Zeimetz, B .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2002, 372 (PART 2) :1254-1257

[7] High critical currents in iron-clad superconducting MgB2 wires [J].

Jin, S ;

Mavoori, H ;

Bower, C ;

van Dover, RB .

NATURE, 2001, 411 (6837) :563-565

[8] Dendritic magnetic instability in superconducting MgB2 films [J].

Johansen, TH ;

Baziljevich, M ;

Shantsev, DV ;

Goa, PE ;

Galperin, YM ;

Kang, WN ;

Kim, HJ ;

Choi, EM ;

Kim, MS ;

Lee, SI .

EUROPHYSICS LETTERS, 2002, 59 (04) :599-605

[9] Magnetization analysis of sintered Bi2223 using an extended critical state model [J].

Kimishima, Y ;

Ichikawa, H ;

Takano, S ;

Kuramoto, T .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2004, 17 (02) :S36-S41

[10] La-doping effects on pinning properties of MgB2 [J].

Kimishima, Y ;

Uehara, M ;

Kuramoto, T ;

Takano, S ;

Takami, S .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2004, 412 :402-406

← 1 2 →