Nature of vortex pinning in the MgB2 superconductor

Kijoon H.P. Kim; Mun Seog Kim; C. U. Jung; Min Seok Park; W. N. Kang; Sung Ik Lee

doi:10.1117/12.452280

Nature of vortex pinning in the MgB₂ superconductor

Kijoon H.P. Kim, Mun Seog Kim, C. U. Jung, Min Seok Park, W. N. Kang, Sung Ik Lee

Pohang University of Science and Technology

Research output: Contribution to journal › Conference article › peer-review

Abstract

The magnetic-field dependence of the irreversible magnetization of the binary superconductor MgB₂ was measured. For most of the temperature region below T_c, bulk pinning dominated surface pinning, thus, the magnetization curves, M(H), were well described by the critical-state model. Moreover, the M(H) curves at various temperatures scaled when the field and the magnetization were properly normalized. The universal scaling of the magnetization indicated that the pinning was uniquely determined at temperatures below T = T_c.

Original language	English
Pages (from-to)	288-293
Number of pages	6
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4811
DOIs	https://doi.org/10.1117/12.452280
State	Published - 2002
Externally published	Yes
Event	Superconducting and Related Oxides: Physics and Nanoengineering V - Seattle, WA, United States Duration: 8 Jul 2002 → 11 Jul 2002

Keywords

Bulk pinning
Magnetic hysteresis
MgB
Scaling

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10.1117/12.452280

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title = "Nature of vortex pinning in the MgB2 superconductor",

abstract = "The magnetic-field dependence of the irreversible magnetization of the binary superconductor MgB2 was measured. For most of the temperature region below Tc, bulk pinning dominated surface pinning, thus, the magnetization curves, M(H), were well described by the critical-state model. Moreover, the M(H) curves at various temperatures scaled when the field and the magnetization were properly normalized. The universal scaling of the magnetization indicated that the pinning was uniquely determined at temperatures below T = Tc.",

keywords = "Bulk pinning, Magnetic hysteresis, MgB, Scaling",

author = "Kim, \{Kijoon H.P.\} and Kim, \{Mun Seog\} and Jung, \{C. U.\} and Park, \{Min Seok\} and Kang, \{W. N.\} and Lee, \{Sung Ik\}",

year = "2002",

doi = "10.1117/12.452280",

language = "English",

volume = "4811",

pages = "288--293",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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publisher = "SPIE",

note = "Superconducting and Related Oxides: Physics and Nanoengineering V ; Conference date: 08-07-2002 Through 11-07-2002",

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TY - JOUR

T1 - Nature of vortex pinning in the MgB2 superconductor

AU - Kim, Kijoon H.P.

AU - Kim, Mun Seog

AU - Jung, C. U.

AU - Park, Min Seok

AU - Kang, W. N.

AU - Lee, Sung Ik

PY - 2002

Y1 - 2002

N2 - The magnetic-field dependence of the irreversible magnetization of the binary superconductor MgB2 was measured. For most of the temperature region below Tc, bulk pinning dominated surface pinning, thus, the magnetization curves, M(H), were well described by the critical-state model. Moreover, the M(H) curves at various temperatures scaled when the field and the magnetization were properly normalized. The universal scaling of the magnetization indicated that the pinning was uniquely determined at temperatures below T = Tc.

AB - The magnetic-field dependence of the irreversible magnetization of the binary superconductor MgB2 was measured. For most of the temperature region below Tc, bulk pinning dominated surface pinning, thus, the magnetization curves, M(H), were well described by the critical-state model. Moreover, the M(H) curves at various temperatures scaled when the field and the magnetization were properly normalized. The universal scaling of the magnetization indicated that the pinning was uniquely determined at temperatures below T = Tc.

KW - Bulk pinning

KW - Magnetic hysteresis

KW - MgB

KW - Scaling

UR - https://www.scopus.com/pages/publications/0036983711

U2 - 10.1117/12.452280

DO - 10.1117/12.452280

M3 - Conference article

AN - SCOPUS:0036983711

SN - 0277-786X

VL - 4811

SP - 288

EP - 293

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Superconducting and Related Oxides: Physics and Nanoengineering V

Y2 - 8 July 2002 through 11 July 2002

ER -

Nature of vortex pinning in the MgB₂ superconductor

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Keywords

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