Scaling behavior in aluminum doped MgB2 superconductor

A. F. Salem; K. A. Ziq; A. A. Bahgat

doi:10.1007/s10948-012-1879-4

Scaling behavior in aluminum doped MgB₂ superconductor

A. F. Salem^*
, K. A. Ziq
, A. A. Bahgat

^*Corresponding author for this work

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

10 Scopus citations

Abstract

Magnetization measurements have been performed on Mg₁₋_xAl_xB₂ (0 ≤ x ≤ 0.1) at various temperatures below T_c and in fields up to 9 T. The reversible magnetization has been used to calculate the thermodynamic critical field (H_c) which is then used to obtain a new universal behavior for both the critical current density (J_c) and the pinning force (P_f). This approach is based on vortex core energy (∼H2_c) and clearly exhibits the deviation from single vortex pinning with increasing temperature and higher concentration of Al-doping.

Original language	English
Pages (from-to)	1517-1520
Number of pages	4
Journal	Journal of Superconductivity and Novel Magnetism
Volume	26
Issue number	5
DOIs	https://doi.org/10.1007/s10948-012-1879-4
State	Published - May 2013

Bibliographical note

Publisher Copyright:
© Springer Science+Business Media New York 2012.

Keywords

Al-Doped MgB2
Magnesium diboride
Thermodynamic critical field

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1007/s10948-012-1879-4

Cite this

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abstract = "Magnetization measurements have been performed on Mg1−xAlxB2 (0 ≤ x ≤ 0.1) at various temperatures below Tc and in fields up to 9 T. The reversible magnetization has been used to calculate the thermodynamic critical field (Hc) which is then used to obtain a new universal behavior for both the critical current density (Jc) and the pinning force (Pf). This approach is based on vortex core energy (∼H2c) and clearly exhibits the deviation from single vortex pinning with increasing temperature and higher concentration of Al-doping.",

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AU - Ziq, K. A.

AU - Bahgat, A. A.

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N2 - Magnetization measurements have been performed on Mg1−xAlxB2 (0 ≤ x ≤ 0.1) at various temperatures below Tc and in fields up to 9 T. The reversible magnetization has been used to calculate the thermodynamic critical field (Hc) which is then used to obtain a new universal behavior for both the critical current density (Jc) and the pinning force (Pf). This approach is based on vortex core energy (∼H2c) and clearly exhibits the deviation from single vortex pinning with increasing temperature and higher concentration of Al-doping.

AB - Magnetization measurements have been performed on Mg1−xAlxB2 (0 ≤ x ≤ 0.1) at various temperatures below Tc and in fields up to 9 T. The reversible magnetization has been used to calculate the thermodynamic critical field (Hc) which is then used to obtain a new universal behavior for both the critical current density (Jc) and the pinning force (Pf). This approach is based on vortex core energy (∼H2c) and clearly exhibits the deviation from single vortex pinning with increasing temperature and higher concentration of Al-doping.

KW - Al-Doped MgB2

KW - Magnesium diboride

KW - Thermodynamic critical field

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JF - Journal of Superconductivity and Novel Magnetism

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