Observation of the flux line lattice and crystal defects in Bi-Sr-Ca-Cu-O single crystals

K. Furusawa; Y. Zhao; N. Chikumoto; K. Kishio; T. Nagatomo; M. Murakami

doi:10.1016/S0921-4534(03)01230-9

Observation of the flux line lattice and crystal defects in Bi-Sr-Ca-Cu-O single crystals

K. Furusawa, Y. Zhao, N. Chikumoto, K. Kishio, T. Nagatomo, M. Murakami

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

3 Citations (Scopus)

Abstract

We have observed flux line lattice (FLL) structure in two different types of Bi₂Sr₂CaCu₂O_8+δ (Bi-2212) single crystals with different pinning by using a Bitter decoration technique. We have also observed the microstructure and analyzed local chemical composition with wave dispersive spectroscopic analyses. In a low J_c sample, we found two types of line defects, one with Ca-rich and the other with Ca-deficient. These defects extended almost parallel to the growth direction, which caused a distortion in the FLL structure. In contrast, no such defects were observed in the matrix in a high-J_c sample, and a relatively ordered FLL was observed.

Original language	English
Pages (from-to)	353-358
Number of pages	6
Journal	Physica C: Superconductivity and its applications
Volume	392-396
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4534(03)01230-9
Publication status	Published - 2003 Oct 1
Externally published	Yes
Event	Proceedings of the 15th International Symposium on Superconduc - Yokohama, Japan Duration: 2002 Nov 11 → 2002 Nov 13

Keywords

Bi-2212
Bitter decoration technique
Line defect
Magneto-optical imaging

ASJC Scopus subject areas

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

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Cite this

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title = "Observation of the flux line lattice and crystal defects in Bi-Sr-Ca-Cu-O single crystals",

abstract = "We have observed flux line lattice (FLL) structure in two different types of Bi2Sr2CaCu2O8+δ (Bi-2212) single crystals with different pinning by using a Bitter decoration technique. We have also observed the microstructure and analyzed local chemical composition with wave dispersive spectroscopic analyses. In a low Jc sample, we found two types of line defects, one with Ca-rich and the other with Ca-deficient. These defects extended almost parallel to the growth direction, which caused a distortion in the FLL structure. In contrast, no such defects were observed in the matrix in a high-Jc sample, and a relatively ordered FLL was observed.",

keywords = "Bi-2212, Bitter decoration technique, Line defect, Magneto-optical imaging",

author = "K. Furusawa and Y. Zhao and N. Chikumoto and K. Kishio and T. Nagatomo and M. Murakami",

year = "2003",

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doi = "10.1016/S0921-4534(03)01230-9",

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note = "Proceedings of the 15th International Symposium on Superconduc ; Conference date: 11-11-2002 Through 13-11-2002",

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TY - JOUR

T1 - Observation of the flux line lattice and crystal defects in Bi-Sr-Ca-Cu-O single crystals

AU - Furusawa, K.

AU - Zhao, Y.

AU - Chikumoto, N.

AU - Kishio, K.

AU - Nagatomo, T.

AU - Murakami, M.

PY - 2003/10/1

Y1 - 2003/10/1

N2 - We have observed flux line lattice (FLL) structure in two different types of Bi2Sr2CaCu2O8+δ (Bi-2212) single crystals with different pinning by using a Bitter decoration technique. We have also observed the microstructure and analyzed local chemical composition with wave dispersive spectroscopic analyses. In a low Jc sample, we found two types of line defects, one with Ca-rich and the other with Ca-deficient. These defects extended almost parallel to the growth direction, which caused a distortion in the FLL structure. In contrast, no such defects were observed in the matrix in a high-Jc sample, and a relatively ordered FLL was observed.

AB - We have observed flux line lattice (FLL) structure in two different types of Bi2Sr2CaCu2O8+δ (Bi-2212) single crystals with different pinning by using a Bitter decoration technique. We have also observed the microstructure and analyzed local chemical composition with wave dispersive spectroscopic analyses. In a low Jc sample, we found two types of line defects, one with Ca-rich and the other with Ca-deficient. These defects extended almost parallel to the growth direction, which caused a distortion in the FLL structure. In contrast, no such defects were observed in the matrix in a high-Jc sample, and a relatively ordered FLL was observed.

KW - Bi-2212

KW - Bitter decoration technique

KW - Line defect

KW - Magneto-optical imaging

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DO - 10.1016/S0921-4534(03)01230-9

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SP - 353

EP - 358

JO - Physica C: Superconductivity and its Applications

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SN - 0921-4534

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