NDLI: Improving Superconducting Properties of MgB<formula formulatype=inline><tex Notation=TeX>$

Content Provider	IEEE Xplore Digital Library
Author	De Silva, K.S.B. Xu, X. Li, W.X. Zhang, Y. Rindfleisch, M. Tomsic, M.
Copyright Year	2002
Abstract	We report the synthesis and characterization of MgB₂ made from nano-boron and doped with graphene in the following mole percentages, x = 0, 3.0 and 12.0. The effect of graphene doping on the normal state resistivity (ρ), superconducting transition temperature (T_c), irreversibility and upper critical fields (H_irr and H_c2), and critical current density (J_c), as well as the pinning force (F_p) were evaluated. We found that the graphene doping has a positive impact on the above mentioned properties. In the case of the optimally doped (x = 3.0%) sample, the critical current density at 5 K corresponds to 1.4 × 10⁵ A/cm² for 2 T field, whereas the undoped sample showed 9.6 × 10⁴ A/cm² for the same field, i.e., 1.5 times improvement. Furthermore, the optimally doped sample showed a J_c of nearly 1 × 10⁴ A/cm² at 5 K, 8 T, which is a significantly high value. The upper critical field has been enhanced to 13 T at 20 K for the optimal doping level. The flux pinning behavior has been evaluated from the curve of flux pinning force against applied magnetic field, and it reveals that the maximum pinning has been improved by nearly 1.2 times at 20 K, due to the graphene doping.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	2686
Ending Page	2689
Page Count	4
File Size	450181
File Format	PDF
ISSN	10518223
Volume Number	21
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Doping Carbon Conductivity Critical current density Boron Powders upper critical and irreversibility fields MgB $_{2}$ bulk magnetic critical current density resistivity
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Effect of Sintering Temperature on the Superconducting Properties of Graphene Doped $hbox{MgB}_{2}$

Superconducting Properties of ${rm MgB}_{2}$ Wire Using Ball-Milled Low Purity Boron

Study on the Effect of Doping With Poly Zinc Acrylate Complex (PZA) on the Superconducting Properties of Bulk ${rm MgB}_{2}$

Effect of Carbon Substitution on the Superconducting Properties of ${rm MgB}_{2}$ Doped With Multi-Walled Carbon Nanotubes and Nano Carbon

Enhanced Magnetic Property of MgB $_{2}$ Wire Using Phenol-Formaldehyde Resin

Effect of Ball Milling and Fatty Acid Addition on the Properties of $hbox{MgB}_{2}$ Wires

The Critical Current Density of Polycrystalline ${rm MgB}_{2}$ Prepared by Using Boron Mixture

Fabrication and Characterization of the ${rm MgB}_{2}$ Bulk Superconductors Doped by Carbon Nanotubes

Effect of Nano-C Doping on the Critical Current Density and Flux Pinning of MgB$_{2}$ Tapes

Improving Superconducting Properties of MgB$_{2}$ by Graphene Doping

Similar Documents

Effect of Sintering Temperature on the Superconducting Properties of Graphene Doped $hbox{MgB}_{2}$

Superconducting Properties of ${rm MgB}_{2}$ Wire Using Ball-Milled Low Purity Boron

Study on the Effect of Doping With Poly Zinc Acrylate Complex (PZA) on the Superconducting Properties of Bulk ${rm MgB}_{2}$

Effect of Carbon Substitution on the Superconducting Properties of ${rm MgB}_{2}$ Doped With Multi-Walled Carbon Nanotubes and Nano Carbon

Enhanced Magnetic Property of MgB $_{2}$ Wire Using Phenol-Formaldehyde Resin

Effect of Ball Milling and Fatty Acid Addition on the Properties of $hbox{MgB}_{2}$ Wires

The Critical Current Density of Polycrystalline ${rm MgB}_{2}$ Prepared by Using Boron Mixture

Fabrication and Characterization of the ${rm MgB}_{2}$ Bulk Superconductors Doped by Carbon Nanotubes

Effect of Nano-C Doping on the Critical Current Density and Flux Pinning of MgB$_{2}$ Tapes

Improving Superconducting Properties of MgB$_{2}$ by Graphene Doping