Two effects of iodine intercalation on Tc in Bi2Sr2Ca1-xYxCu2O8. Two-dimensionality and charge transfer

Akihiko Fujiwara; Yoji Koike; Keiichi Sasaki; Mitsunori Mochida; Takashi Noji; Yoshitami Saito

doi:10.1016/0921-4534(92)90050-M

Two effects of iodine intercalation on T_c in Bi₂Sr₂Ca_1-xY_xCu₂O₈. Two-dimensionality and charge transfer

Akihiko Fujiwara, Yoji Koike, Keiichi Sasaki, Mitsunori Mochida, Takashi Noji, Yoshitami Saito

ENG - Applied Physics

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

15 Citations (Scopus)

Abstract

Effects of the stage-1 iodine-intercalation on T_c have been investigated in Bi₂Sr₂Ca_1-xY_xCu₂O₈. The iodine intercalation produces two large effects; one is enhancement of the two-dimensionality due to expansion of the crystal along the c-axis, and the other is increase of conductive hole carriers due to charge transfer between intercalated iodine atoms and CuO₂ sheets in the host material. For the stage-1 iodine-intercalation compounds, it has been found that the former effect decreases T_c by about 10 K and that the latter effect shifts the x dependence of T_c to larger x values by about 0.05 because of the increase of conductive hole carriers by about 0.025 per CuO₂ unit. It has been concluded that the decrease in T_c through the I intercalation in Bi₂Sr₂CaCu₂O₈ is due to both effects.

Original language	English
Pages (from-to)	411-418
Number of pages	8
Journal	Physica C: Superconductivity and its applications
Volume	203
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4534(92)90050-M
Publication status	Published - 1992 Dec 10

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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Two effects of iodine intercalation on T_c in Bi₂Sr₂Ca_1-xY_xCu₂O₈. Two-dimensionality and charge transfer. / Fujiwara, Akihiko; Koike, Yoji; Sasaki, Keiichi; Mochida, Mitsunori; Noji, Takashi; Saito, Yoshitami.

In: Physica C: Superconductivity and its applications, Vol. 203, No. 3-4, 10.12.1992, p. 411-418.

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

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abstract = "Effects of the stage-1 iodine-intercalation on Tc have been investigated in Bi2Sr2Ca1-xYxCu2O8. The iodine intercalation produces two large effects; one is enhancement of the two-dimensionality due to expansion of the crystal along the c-axis, and the other is increase of conductive hole carriers due to charge transfer between intercalated iodine atoms and CuO2 sheets in the host material. For the stage-1 iodine-intercalation compounds, it has been found that the former effect decreases Tc by about 10 K and that the latter effect shifts the x dependence of Tc to larger x values by about 0.05 because of the increase of conductive hole carriers by about 0.025 per CuO2 unit. It has been concluded that the decrease in Tc through the I intercalation in Bi2Sr2CaCu2O8 is due to both effects.",

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AU - Fujiwara, Akihiko

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AU - Mochida, Mitsunori

AU - Noji, Takashi

AU - Saito, Yoshitami

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N2 - Effects of the stage-1 iodine-intercalation on Tc have been investigated in Bi2Sr2Ca1-xYxCu2O8. The iodine intercalation produces two large effects; one is enhancement of the two-dimensionality due to expansion of the crystal along the c-axis, and the other is increase of conductive hole carriers due to charge transfer between intercalated iodine atoms and CuO2 sheets in the host material. For the stage-1 iodine-intercalation compounds, it has been found that the former effect decreases Tc by about 10 K and that the latter effect shifts the x dependence of Tc to larger x values by about 0.05 because of the increase of conductive hole carriers by about 0.025 per CuO2 unit. It has been concluded that the decrease in Tc through the I intercalation in Bi2Sr2CaCu2O8 is due to both effects.

AB - Effects of the stage-1 iodine-intercalation on Tc have been investigated in Bi2Sr2Ca1-xYxCu2O8. The iodine intercalation produces two large effects; one is enhancement of the two-dimensionality due to expansion of the crystal along the c-axis, and the other is increase of conductive hole carriers due to charge transfer between intercalated iodine atoms and CuO2 sheets in the host material. For the stage-1 iodine-intercalation compounds, it has been found that the former effect decreases Tc by about 10 K and that the latter effect shifts the x dependence of Tc to larger x values by about 0.05 because of the increase of conductive hole carriers by about 0.025 per CuO2 unit. It has been concluded that the decrease in Tc through the I intercalation in Bi2Sr2CaCu2O8 is due to both effects.

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