Increased flux pinning in both pure and carbon-nanotube-embedded Bi-2212 superconductors

Sun Li Huang; M. R. Koblischka; K. Fossheim; T. W. Ebbesen; T. H. Johansen

doi:10.1016/S0921-4534(97)01231-8

Increased flux pinning in both pure and carbon-nanotube-embedded Bi-2212 superconductors

Sun Li Huang, M. R. Koblischka, K. Fossheim, T. W. Ebbesen, T. H. Johansen

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

8 Citations (Scopus)

Abstract

In this work, we have prepared both Bi₂Sr₂CaCu₂O_8+δ samples (Bi-2212) and Bi₂Sr₂CaCu₂O_8+δ samples with carbon nanotubes embedded (CNTE Bi-2212) by partial-melting processing. AC susceptibilty measurements show that the Bi-2212 samples as well as the CNTE Bi-2212 samples have a sharp transition at 94K and -86K, respectively. The pinning properties of these samples are studied by means of magneto-optical visualization of flux distribution up to 77K. The results indicate that our Bi-2212 samples have obviously enhanced pinning capacity, and in our CNTE Bi-2212 samples, the pinning is even stronger and the fields of flux entry are doubled at intermediate temperatures compared to those of our Bi-2212 samples.

Original language	English
Pages (from-to)	2279-2280
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	282
Issue number	PART 4
DOIs	https://doi.org/10.1016/S0921-4534(97)01231-8
Publication status	Published - 1997 Aug
Externally published	Yes

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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10.1016/S0921-4534(97)01231-8

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title = "Increased flux pinning in both pure and carbon-nanotube-embedded Bi-2212 superconductors",

abstract = "In this work, we have prepared both Bi2Sr2CaCu2O8+δ samples (Bi-2212) and Bi2Sr2CaCu2O8+δ samples with carbon nanotubes embedded (CNTE Bi-2212) by partial-melting processing. AC susceptibilty measurements show that the Bi-2212 samples as well as the CNTE Bi-2212 samples have a sharp transition at 94K and -86K, respectively. The pinning properties of these samples are studied by means of magneto-optical visualization of flux distribution up to 77K. The results indicate that our Bi-2212 samples have obviously enhanced pinning capacity, and in our CNTE Bi-2212 samples, the pinning is even stronger and the fields of flux entry are doubled at intermediate temperatures compared to those of our Bi-2212 samples.",

author = "Huang, {Sun Li} and Koblischka, {M. R.} and K. Fossheim and Ebbesen, {T. W.} and Johansen, {T. H.}",

note = "Funding Information: This work is financially Research Council of Norway.",

year = "1997",

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doi = "10.1016/S0921-4534(97)01231-8",

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T1 - Increased flux pinning in both pure and carbon-nanotube-embedded Bi-2212 superconductors

AU - Huang, Sun Li

AU - Koblischka, M. R.

AU - Fossheim, K.

AU - Ebbesen, T. W.

AU - Johansen, T. H.

N1 - Funding Information: This work is financially Research Council of Norway.

PY - 1997/8

Y1 - 1997/8

N2 - In this work, we have prepared both Bi2Sr2CaCu2O8+δ samples (Bi-2212) and Bi2Sr2CaCu2O8+δ samples with carbon nanotubes embedded (CNTE Bi-2212) by partial-melting processing. AC susceptibilty measurements show that the Bi-2212 samples as well as the CNTE Bi-2212 samples have a sharp transition at 94K and -86K, respectively. The pinning properties of these samples are studied by means of magneto-optical visualization of flux distribution up to 77K. The results indicate that our Bi-2212 samples have obviously enhanced pinning capacity, and in our CNTE Bi-2212 samples, the pinning is even stronger and the fields of flux entry are doubled at intermediate temperatures compared to those of our Bi-2212 samples.

AB - In this work, we have prepared both Bi2Sr2CaCu2O8+δ samples (Bi-2212) and Bi2Sr2CaCu2O8+δ samples with carbon nanotubes embedded (CNTE Bi-2212) by partial-melting processing. AC susceptibilty measurements show that the Bi-2212 samples as well as the CNTE Bi-2212 samples have a sharp transition at 94K and -86K, respectively. The pinning properties of these samples are studied by means of magneto-optical visualization of flux distribution up to 77K. The results indicate that our Bi-2212 samples have obviously enhanced pinning capacity, and in our CNTE Bi-2212 samples, the pinning is even stronger and the fields of flux entry are doubled at intermediate temperatures compared to those of our Bi-2212 samples.

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IS - PART 4

ER -

Increased flux pinning in both pure and carbon-nanotube-embedded Bi-2212 superconductors

Abstract

ASJC Scopus subject areas

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