Superconducting phase diagram of single-crystal MgB2

被引：32

作者：

Welp, U ^{[1
]}

Rydh, A

Karapetrov, G

Kwok, WK

Crabtree, GW

Marcenat, C

Paulius, LM

Lyard, L

Klein, T

Marcus, J

Blanchard, S

Samuely, P

Szabo, P

Jansen, AGM

Kim, KHP

Jung, CU

Lee, HS

Kang, B

Lee, SI

机构：

[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[2] CEA Grenoble, SPSMS, Dept Rech Fondamentale Mat Condensee, F-38054 Grenoble, France

[3] CNRS, Lab Etude Proprietes Solides, F-38042 Grenoble, France

[4] Slovak Acad Sci, Inst Expt Phys, SK-04353 Kosice, Slovakia

[5] Max Planck Inst Festkorperforsch, Grenoble High Magnet Field Lab, CNRS, F-38042 Grenoble 9, France

[6] Pohang Univ Sci & Technol, Dept Phys, NCRICS, Pohang 790784, South Korea

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2003年 / 385卷 / 1-2期

关键词：

vortex phase diagram; specific heat; transport; magnetization; upper critical field; anisotropy; single crystal;

D O I：

10.1016/S0921-4534(02)02329-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The superconducting phase diagram of single-crystal MgB2 has been determined using magnetization, magneto-transport and specific heat measurements. A value of 9.4 nm is found for the zero-temperature in-plane coherence length. The superconducting anisotropy coefficient, gamma, increases monotonously from a value around 2 near T-c to 4.5 at low temperature. The current dependence and angular dependence of the resistive transitions give evidence for a surface superconducting state for H parallel to c which might account for the wide spread in reported values of the superconducting anisotropy. (C) 2002 Published by Elsevier Science B.V.

引用

页码：154 / 161

页数：8

共 50 条

[21] Phase formation of superconducting MgB2 at ambient pressure
Talapatra, A
Bandyopadhyay, SK
Sen, P
Sarkar, A
Barat, P
BULLETIN OF MATERIALS SCIENCE, 2004, 27 (05) : 429 - 432
[22] Phase formation of superconducting MgB2 at ambient pressure
A. Talapatra
S. K. Bandyopadhyay
Pintu Sen
A. Sarkar
P. Barat
Bulletin of Materials Science, 2004, 27 : 429 - 432
[23] Transport properties of MgB2 single crystal
Masui, T
Lee, S
Yamamoto, A
Tajima, S
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2002, 378 : 216 - 219
[24] Aligned single crystal MgB2 nanowires
Yang, Q
Sha, J
Ma, XY
Ji, YJ
Yang, DR
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2004, 17 (08): : L31 - L33
[25] Magnetostriction in superconducting MgB2
Nabialek, A
Kundys, B
Bukhantsev, Y
Vasiliev, S
Wisniewski, A
Jun, J
Kazakov, SM
Karpinski, J
Szymczak, H
PHYSICA B-CONDENSED MATTER, 2002, 319 (1-4) : 286 - 292
[26] Superconducting cellular MgB2
Grinenko, V. A.
Krasnoperov, E. P.
Mikhailov, B. P.
PHYSICS OF METALS AND METALLOGRAPHY, 2007, 103 (06): : 561 - 565
[27] Superconducting MgB2 nanowires
Wu, YY
Messer, B
Yang, PD
ADVANCED MATERIALS, 2001, 13 (19) : 1487 - +
[28] Superconducting MgB2 microstrips
Strbík, V
Chromik, S
Benacka, S
Gazi, S
CZECHOSLOVAK JOURNAL OF PHYSICS, 2004, 54 : D505 - D508
[29] Superconducting cellular MgB2
V. A. Grinenko
E. P. Krasnoperov
B. P. Mikhailov
The Physics of Metals and Metallography, 2007, 103 : 561 - 565
[30] Degradation of superconducting properties in MgB2 by formation of the MgB4 phase
Yakinci, ME
Balci, Y
Aksan, MA
Adigüzel, HI
Gencer, A
JOURNAL OF SUPERCONDUCTIVITY, 2002, 15 (06): : 607 - 611

← 1 2 3 4 5 →