Doping effect of nano-diamond on superconductivity and flux pinning in MgB2

C. H. Cheng; H. Zhang; Y. Zhao; Y. Feng; X. F. Rui; P. Munroe; H. M. Zeng; N. Koshizuka; M. Murakami

doi:10.1088/0953-2048/16/10/310

Doping effect of nano-diamond on superconductivity and flux pinning in MgB₂

C. H. Cheng, H. Zhang, Y. Zhao, Y. Feng, X. F. Rui, P. Munroe, H. M. Zeng, N. Koshizuka, M. Murakami

Research output: Contribution to journal › Article › peer-review

70 Citations (Scopus)

Abstract

The doping effect of diamond nanoparticles on the superconducting properties of MgB₂ bulk material has been studied. It is found that the superconducting transition temperature T_c of MgB₂ is suppressed by the diamond doping, however, the irreversibility field H_irr and the critical current density J_c are systematically enhanced. Microstructural analysis shows that the diamond-doped MgB₂ superconductor consists of tightly-packed MgB₂ nano-grains (∼50-100 nm) with highly dispersed and uniformly distributed diamond nanoparticles (∼10-20 nm) inside the grains. The highly density of dislocations and diamond nanoparticles may be responsible for the enhanced flux pinning in the diamond-doped MgB₂.

Original language	English
Pages (from-to)	1182-1186
Number of pages	5
Journal	Superconductor Science and Technology
Volume	16
Issue number	10
DOIs	https://doi.org/10.1088/0953-2048/16/10/310
Publication status	Published - 2003 Oct
Externally published	Yes

ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

Access to Document

10.1088/0953-2048/16/10/310

Cite this

@article{ce9e43a91a23422b89a0cd0e07dabc05,

title = "Doping effect of nano-diamond on superconductivity and flux pinning in MgB2",

abstract = "The doping effect of diamond nanoparticles on the superconducting properties of MgB2 bulk material has been studied. It is found that the superconducting transition temperature Tc of MgB2 is suppressed by the diamond doping, however, the irreversibility field Hirr and the critical current density Jc are systematically enhanced. Microstructural analysis shows that the diamond-doped MgB2 superconductor consists of tightly-packed MgB2 nano-grains (∼50-100 nm) with highly dispersed and uniformly distributed diamond nanoparticles (∼10-20 nm) inside the grains. The highly density of dislocations and diamond nanoparticles may be responsible for the enhanced flux pinning in the diamond-doped MgB2.",

author = "Cheng, {C. H.} and H. Zhang and Y. Zhao and Y. Feng and Rui, {X. F.} and P. Munroe and Zeng, {H. M.} and N. Koshizuka and M. Murakami",

year = "2003",

month = oct,

doi = "10.1088/0953-2048/16/10/310",

language = "English",

volume = "16",

pages = "1182--1186",

journal = "Superconductor Science and Technology",

issn = "0953-2048",

publisher = "IOP Publishing Ltd.",

number = "10",

}

TY - JOUR

T1 - Doping effect of nano-diamond on superconductivity and flux pinning in MgB2

AU - Cheng, C. H.

AU - Zhang, H.

AU - Zhao, Y.

AU - Feng, Y.

AU - Rui, X. F.

AU - Munroe, P.

AU - Zeng, H. M.

AU - Koshizuka, N.

AU - Murakami, M.

PY - 2003/10

Y1 - 2003/10

N2 - The doping effect of diamond nanoparticles on the superconducting properties of MgB2 bulk material has been studied. It is found that the superconducting transition temperature Tc of MgB2 is suppressed by the diamond doping, however, the irreversibility field Hirr and the critical current density Jc are systematically enhanced. Microstructural analysis shows that the diamond-doped MgB2 superconductor consists of tightly-packed MgB2 nano-grains (∼50-100 nm) with highly dispersed and uniformly distributed diamond nanoparticles (∼10-20 nm) inside the grains. The highly density of dislocations and diamond nanoparticles may be responsible for the enhanced flux pinning in the diamond-doped MgB2.

AB - The doping effect of diamond nanoparticles on the superconducting properties of MgB2 bulk material has been studied. It is found that the superconducting transition temperature Tc of MgB2 is suppressed by the diamond doping, however, the irreversibility field Hirr and the critical current density Jc are systematically enhanced. Microstructural analysis shows that the diamond-doped MgB2 superconductor consists of tightly-packed MgB2 nano-grains (∼50-100 nm) with highly dispersed and uniformly distributed diamond nanoparticles (∼10-20 nm) inside the grains. The highly density of dislocations and diamond nanoparticles may be responsible for the enhanced flux pinning in the diamond-doped MgB2.

UR - http://www.scopus.com/inward/record.url?scp=0142091507&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0142091507&partnerID=8YFLogxK

U2 - 10.1088/0953-2048/16/10/310

DO - 10.1088/0953-2048/16/10/310

M3 - Article

AN - SCOPUS:0142091507

VL - 16

SP - 1182

EP - 1186

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

SN - 0953-2048

IS - 10

ER -

Doping effect of nano-diamond on superconductivity and flux pinning in MgB₂

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this