Temperature dependence of the peak effect in NdBa2Cu 3O 7-δ single crystals and melt-processed (Sm 0.5Eu0.5)Ba2Cu3O 7-δ single domains

A. Hu; N. Chikumoto; K. Inoue; M. Murakami

doi:10.1016/S0921-4534(03)01051-7

Temperature dependence of the peak effect in NdBa₂Cu ₃O _7-δ single crystals and melt-processed (Sm _0.5Eu_0.5)Ba₂Cu₃O _7-δ single domains

A. Hu, N. Chikumoto, K. Inoue, M. Murakami

Department of Materials Science and Engineering

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

3 Citations (Scopus)

Abstract

Magnetization loops of NdBa₂Cu₃O_7-δ (Nd123) single crystals grown under low oxygen partial pressure and melt-processed (Sm_0.5Eu_0.5)Ba₂Cu ₃O_7-δ (SE123) crystals with post-annealing in Ar were comparatively studied in a wide temperature and field regime. The peak field at which magnetic moment displays the maximum, exhibits a linear temperature dependence in both cases. The fitting shows a slightly lower critical temperature than bulk T_c at null applied field. The temperature dependence of the onset field from which the absolute value of magnetic moment starts to increase, indicates the dominant pinning at low fields in Nd123 single crystals is the surface barrier while the RE211/123 interfacial pinning in melt-processed SE123 crystals.

Original language	English
Pages (from-to)	345-348
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	392-396
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4534(03)01051-7
Publication status	Published - 2003 Oct
Event	Proceedings of the 15th International Symposium on Superconduc - Yokohama, Japan Duration: 2002 Nov 11 → 2002 Nov 13

Keywords

Compositional fluctuation
Interfacial pinning
Peak effect
Surface barrier

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/S0921-4534(03)01051-7

Cite this

@article{fc79ac95872f418a92860fd27d849a28,

title = "Temperature dependence of the peak effect in NdBa2Cu 3O 7-δ single crystals and melt-processed (Sm 0.5Eu0.5)Ba2Cu3O 7-δ single domains",

abstract = "Magnetization loops of NdBa2Cu3O7-δ (Nd123) single crystals grown under low oxygen partial pressure and melt-processed (Sm0.5Eu0.5)Ba2Cu 3O7-δ (SE123) crystals with post-annealing in Ar were comparatively studied in a wide temperature and field regime. The peak field at which magnetic moment displays the maximum, exhibits a linear temperature dependence in both cases. The fitting shows a slightly lower critical temperature than bulk Tc at null applied field. The temperature dependence of the onset field from which the absolute value of magnetic moment starts to increase, indicates the dominant pinning at low fields in Nd123 single crystals is the surface barrier while the RE211/123 interfacial pinning in melt-processed SE123 crystals.",

keywords = "Compositional fluctuation, Interfacial pinning, Peak effect, Surface barrier",

author = "A. Hu and N. Chikumoto and K. Inoue and M. Murakami",

note = "Funding Information: This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications. ; Proceedings of the 15th International Symposium on Superconduc ; Conference date: 11-11-2002 Through 13-11-2002",

year = "2003",

month = oct,

doi = "10.1016/S0921-4534(03)01051-7",

language = "English",

volume = "392-396",

pages = "345--348",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

number = "PART 1",

}

TY - JOUR

T1 - Temperature dependence of the peak effect in NdBa2Cu 3O 7-δ single crystals and melt-processed (Sm 0.5Eu0.5)Ba2Cu3O 7-δ single domains

AU - Hu, A.

AU - Chikumoto, N.

AU - Inoue, K.

AU - Murakami, M.

N1 - Funding Information: This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.

PY - 2003/10

Y1 - 2003/10

N2 - Magnetization loops of NdBa2Cu3O7-δ (Nd123) single crystals grown under low oxygen partial pressure and melt-processed (Sm0.5Eu0.5)Ba2Cu 3O7-δ (SE123) crystals with post-annealing in Ar were comparatively studied in a wide temperature and field regime. The peak field at which magnetic moment displays the maximum, exhibits a linear temperature dependence in both cases. The fitting shows a slightly lower critical temperature than bulk Tc at null applied field. The temperature dependence of the onset field from which the absolute value of magnetic moment starts to increase, indicates the dominant pinning at low fields in Nd123 single crystals is the surface barrier while the RE211/123 interfacial pinning in melt-processed SE123 crystals.

AB - Magnetization loops of NdBa2Cu3O7-δ (Nd123) single crystals grown under low oxygen partial pressure and melt-processed (Sm0.5Eu0.5)Ba2Cu 3O7-δ (SE123) crystals with post-annealing in Ar were comparatively studied in a wide temperature and field regime. The peak field at which magnetic moment displays the maximum, exhibits a linear temperature dependence in both cases. The fitting shows a slightly lower critical temperature than bulk Tc at null applied field. The temperature dependence of the onset field from which the absolute value of magnetic moment starts to increase, indicates the dominant pinning at low fields in Nd123 single crystals is the surface barrier while the RE211/123 interfacial pinning in melt-processed SE123 crystals.

KW - Compositional fluctuation

KW - Interfacial pinning

KW - Peak effect

KW - Surface barrier

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DO - 10.1016/S0921-4534(03)01051-7

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VL - 392-396

SP - 345

EP - 348

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - PART 1

T2 - Proceedings of the 15th International Symposium on Superconduc

Y2 - 11 November 2002 through 13 November 2002

ER -