Matching effect of vortex lattice in Bi2Sr2CaCu 2O8+y with artificial periodic defects

S. Ooi; T. Mochiku; S. Yu; E. S. Sadki; K. Hirata

doi:10.1016/j.physc.2005.02.139

Matching effect of vortex lattice in Bi₂Sr₂CaCu ₂O_8+y with artificial periodic defects

S. Ooi, T. Mochiku, S. Yu, E. S. Sadki, K. Hirata

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

30 Citations (Scopus)

Abstract

To study the influence of artificial periodic pinning centers on the vortex matter in high-T_c superconductors, we have measured the local magnetization and the electrical resistance of Bi₂Sr ₂CaCu₂O_8+y single crystals with sub-micron holes, which are distributed as a triangular lattice. Both measurements show matching effects in multiples of the matching field calculated from the lattice spacing of the defect array. The maximum field in which the matching effect is observed is larger than the field of the vortex-lattice melting transition in samples without artificial defects. The results suggest the existence of a kind of vortex liquid phase which has an in-plane order.

Original language	English
Pages (from-to)	113-117
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	426-431
Issue number	I
DOIs	https://doi.org/10.1016/j.physc.2005.02.139
Publication status	Published - Oct 1 2005
Externally published	Yes
Event	Proceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity - Duration: Nov 23 2004 → Nov 25 2004

Keywords

Artificial periodic defects
BiSr CaCuO
FIB
Matching effect

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/j.physc.2005.02.139

Cite this

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title = "Matching effect of vortex lattice in Bi2Sr2CaCu 2O8+y with artificial periodic defects",

abstract = "To study the influence of artificial periodic pinning centers on the vortex matter in high-Tc superconductors, we have measured the local magnetization and the electrical resistance of Bi2Sr 2CaCu2O8+y single crystals with sub-micron holes, which are distributed as a triangular lattice. Both measurements show matching effects in multiples of the matching field calculated from the lattice spacing of the defect array. The maximum field in which the matching effect is observed is larger than the field of the vortex-lattice melting transition in samples without artificial defects. The results suggest the existence of a kind of vortex liquid phase which has an in-plane order.",

keywords = "Artificial periodic defects, BiSr CaCuO, FIB, Matching effect",

author = "S. Ooi and T. Mochiku and S. Yu and Sadki, {E. S.} and K. Hirata",

note = "Funding Information: A part of this work was conducted in AIST Nano-Processing Facility, supported by “Nanotechnology Support Project” of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan.; Proceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity ; Conference date: 23-11-2004 Through 25-11-2004",

year = "2005",

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doi = "10.1016/j.physc.2005.02.139",

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

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TY - JOUR

T1 - Matching effect of vortex lattice in Bi2Sr2CaCu 2O8+y with artificial periodic defects

AU - Ooi, S.

AU - Mochiku, T.

AU - Yu, S.

AU - Sadki, E. S.

AU - Hirata, K.

N1 - Funding Information: A part of this work was conducted in AIST Nano-Processing Facility, supported by “Nanotechnology Support Project” of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan.

PY - 2005/10/1

Y1 - 2005/10/1

N2 - To study the influence of artificial periodic pinning centers on the vortex matter in high-Tc superconductors, we have measured the local magnetization and the electrical resistance of Bi2Sr 2CaCu2O8+y single crystals with sub-micron holes, which are distributed as a triangular lattice. Both measurements show matching effects in multiples of the matching field calculated from the lattice spacing of the defect array. The maximum field in which the matching effect is observed is larger than the field of the vortex-lattice melting transition in samples without artificial defects. The results suggest the existence of a kind of vortex liquid phase which has an in-plane order.

AB - To study the influence of artificial periodic pinning centers on the vortex matter in high-Tc superconductors, we have measured the local magnetization and the electrical resistance of Bi2Sr 2CaCu2O8+y single crystals with sub-micron holes, which are distributed as a triangular lattice. Both measurements show matching effects in multiples of the matching field calculated from the lattice spacing of the defect array. The maximum field in which the matching effect is observed is larger than the field of the vortex-lattice melting transition in samples without artificial defects. The results suggest the existence of a kind of vortex liquid phase which has an in-plane order.

KW - Artificial periodic defects

KW - BiSr CaCuO

KW - FIB

KW - Matching effect

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