Iodine and bromine intercalation into the Bi-2222 phase of Bi2Sr2(Gd0.82Ce0.18)2Cu2O10+σ

Yoji Koike; Toshikatsu Hisaki; Keiichi Sasaki; Akihiko Fujiwara; Takashi Noji; Yoshitami Saito

doi:10.1016/0921-4534(94)90601-7

Iodine and bromine intercalation into the Bi-2222 phase of Bi₂Sr₂(Gd_0.82Ce_0.18)₂Cu₂O_10+σ

Yoji Koike, Toshikatsu Hisaki, Keiichi Sasaki, Akihiko Fujiwara, Takashi Noji, Yoshitami Saito

ENG - Applied Physics

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

3 Citations (Scopus)

Abstract

We have succeeded in synthesizing a new intercalation compound Bi₂Sr₂(Gd_0.82Ce_0.18)₂Cu₂O_10+δI with stage-1 structure. The increase in spacing between the BiO-BiO double layers through the iodine intercalation is 3.7 Å. The electrical resistivity and superconductivity have been investigated for iodine-intercalated samples of Bi₂Sr₂(Gd_0.82Ce_0.18)₂Cu₂O_10+δI_x with 0≦x≦1 and bromine-intercalated ones of Bi₂Sr₂(Gd_0.82Ce_0.18)₂Cu₂O_10+δBr_x with 0≦x{less-than or approximate}0.2. It has been found that non- superconducting assintered samples of Bi₂Sr₂(Gd_0.82Ce_0.18)₂Cu₂O_10+δ become superconducting at low temperatures below about 20 K through the light bromine intercalation. This suggests that the role of annealing under high pressures of oxygen in the appearance of superconductivity for the Bi-2222 phase is to supply the CuO₂ sheets with enough hole carriers.

Original language	English
Pages (from-to)	31-37
Number of pages	7
Journal	Physica C: Superconductivity and its applications
Volume	224
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(94)90601-7
Publication status	Published - 1994 Apr 20

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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Iodine and bromine intercalation into the Bi-2222 phase of Bi₂Sr₂(Gd_0.82Ce_0.18)₂Cu₂O_10+σ . / Koike, Yoji; Hisaki, Toshikatsu; Sasaki, Keiichi; Fujiwara, Akihiko; Noji, Takashi; Saito, Yoshitami.

In: Physica C: Superconductivity and its applications, Vol. 224, No. 1-2, 20.04.1994, p. 31-37.

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

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title = "Iodine and bromine intercalation into the Bi-2222 phase of Bi2Sr2(Gd0.82Ce0.18)2Cu2O10+σ ",

abstract = "We have succeeded in synthesizing a new intercalation compound Bi2Sr2(Gd0.82Ce0.18)2Cu2O10+δI with stage-1 structure. The increase in spacing between the BiO-BiO double layers through the iodine intercalation is 3.7 {\AA}. The electrical resistivity and superconductivity have been investigated for iodine-intercalated samples of Bi2Sr2(Gd0.82Ce0.18)2Cu2O10+δIx with 0≦x≦1 and bromine-intercalated ones of Bi2Sr2(Gd0.82Ce0.18)2Cu2O10+δBrx with 0≦x{less-than or approximate}0.2. It has been found that non- superconducting assintered samples of Bi2Sr2(Gd0.82Ce0.18)2Cu2O10+δ become superconducting at low temperatures below about 20 K through the light bromine intercalation. This suggests that the role of annealing under high pressures of oxygen in the appearance of superconductivity for the Bi-2222 phase is to supply the CuO2 sheets with enough hole carriers.",

author = "Yoji Koike and Toshikatsu Hisaki and Keiichi Sasaki and Akihiko Fujiwara and Takashi Noji and Yoshitami Saito",

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N2 - We have succeeded in synthesizing a new intercalation compound Bi2Sr2(Gd0.82Ce0.18)2Cu2O10+δI with stage-1 structure. The increase in spacing between the BiO-BiO double layers through the iodine intercalation is 3.7 Å. The electrical resistivity and superconductivity have been investigated for iodine-intercalated samples of Bi2Sr2(Gd0.82Ce0.18)2Cu2O10+δIx with 0≦x≦1 and bromine-intercalated ones of Bi2Sr2(Gd0.82Ce0.18)2Cu2O10+δBrx with 0≦x{less-than or approximate}0.2. It has been found that non- superconducting assintered samples of Bi2Sr2(Gd0.82Ce0.18)2Cu2O10+δ become superconducting at low temperatures below about 20 K through the light bromine intercalation. This suggests that the role of annealing under high pressures of oxygen in the appearance of superconductivity for the Bi-2222 phase is to supply the CuO2 sheets with enough hole carriers.

AB - We have succeeded in synthesizing a new intercalation compound Bi2Sr2(Gd0.82Ce0.18)2Cu2O10+δI with stage-1 structure. The increase in spacing between the BiO-BiO double layers through the iodine intercalation is 3.7 Å. The electrical resistivity and superconductivity have been investigated for iodine-intercalated samples of Bi2Sr2(Gd0.82Ce0.18)2Cu2O10+δIx with 0≦x≦1 and bromine-intercalated ones of Bi2Sr2(Gd0.82Ce0.18)2Cu2O10+δBrx with 0≦x{less-than or approximate}0.2. It has been found that non- superconducting assintered samples of Bi2Sr2(Gd0.82Ce0.18)2Cu2O10+δ become superconducting at low temperatures below about 20 K through the light bromine intercalation. This suggests that the role of annealing under high pressures of oxygen in the appearance of superconductivity for the Bi-2222 phase is to supply the CuO2 sheets with enough hole carriers.

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