XANES and EXAFS studies on a new superconducting intercalation compound, AgIBi2Sr2CaCu2Oy

Choy Jin-Ho; Kim Dong-Kuk; Park Nam-Gyu; Kim Dong-Hoon; Hwang Seong-Ju; Hwang Sung-Ho; Hwi Hur Nam Hwi Hur

doi:10.1016/0921-4534(94)91736-1

XANES and EXAFS studies on a new superconducting intercalation compound, AgIBi₂Sr₂CaCu₂O_y

Choy Jin-Ho, Kim Dong-Kuk, Park Nam-Gyu, Kim Dong-Hoon, Hwang Seong-Ju, Hwang Sung-Ho, Hwi Hur Nam Hwi Hur

Department of Materials Science and Engineering

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

Abstract

A new superconducting intercalation compound, AgIBi₂Sr₂CaCu₂O_y, in which the basal spacing is increased by 7.352 Å, has been prepared from the mixture of polycrystalline Bi₂Sr₂CaCu₂O_y and Ag powder under iodine vapor at 190°C in an ambient atmosphere. The X-ray absorption studies on I L_I- and Ag K-edges indicate that there is no charge-transfer between the intercalated guest species, AgI and host layer. A slight T_c depression (ΔT_c∼13K) upon AgI intercalation is, therefore, probably due to the weakening of interlayer coupling, but the hole donation to the host upon oxygen intercalation may not be excluded.

Original language	English
Pages (from-to)	1023-1024
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	235-240
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4534(94)91736-1
Publication status	Published - 1994 Dec

All Science Journal Classification (ASJC) codes

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

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10.1016/0921-4534(94)91736-1

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title = "XANES and EXAFS studies on a new superconducting intercalation compound, AgIBi2Sr2CaCu2Oy",

abstract = "A new superconducting intercalation compound, AgIBi2Sr2CaCu2Oy, in which the basal spacing is increased by 7.352 {\AA}, has been prepared from the mixture of polycrystalline Bi2Sr2CaCu2Oy and Ag powder under iodine vapor at 190°C in an ambient atmosphere. The X-ray absorption studies on I LI- and Ag K-edges indicate that there is no charge-transfer between the intercalated guest species, AgI and host layer. A slight Tc depression (ΔTc∼13K) upon AgI intercalation is, therefore, probably due to the weakening of interlayer coupling, but the hole donation to the host upon oxygen intercalation may not be excluded.",

author = "Choy Jin-Ho and Kim Dong-Kuk and Park Nam-Gyu and Kim Dong-Hoon and Hwang Seong-Ju and Hwang Sung-Ho and {Nam Hwi Hur}, {Hwi Hur}",

year = "1994",

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doi = "10.1016/0921-4534(94)91736-1",

language = "English",

volume = "235-240",

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

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T1 - XANES and EXAFS studies on a new superconducting intercalation compound, AgIBi2Sr2CaCu2Oy

AU - Jin-Ho, Choy

AU - Dong-Kuk, Kim

AU - Nam-Gyu, Park

AU - Dong-Hoon, Kim

AU - Seong-Ju, Hwang

AU - Sung-Ho, Hwang

AU - Nam Hwi Hur, Hwi Hur

PY - 1994/12

Y1 - 1994/12

N2 - A new superconducting intercalation compound, AgIBi2Sr2CaCu2Oy, in which the basal spacing is increased by 7.352 Å, has been prepared from the mixture of polycrystalline Bi2Sr2CaCu2Oy and Ag powder under iodine vapor at 190°C in an ambient atmosphere. The X-ray absorption studies on I LI- and Ag K-edges indicate that there is no charge-transfer between the intercalated guest species, AgI and host layer. A slight Tc depression (ΔTc∼13K) upon AgI intercalation is, therefore, probably due to the weakening of interlayer coupling, but the hole donation to the host upon oxygen intercalation may not be excluded.

AB - A new superconducting intercalation compound, AgIBi2Sr2CaCu2Oy, in which the basal spacing is increased by 7.352 Å, has been prepared from the mixture of polycrystalline Bi2Sr2CaCu2Oy and Ag powder under iodine vapor at 190°C in an ambient atmosphere. The X-ray absorption studies on I LI- and Ag K-edges indicate that there is no charge-transfer between the intercalated guest species, AgI and host layer. A slight Tc depression (ΔTc∼13K) upon AgI intercalation is, therefore, probably due to the weakening of interlayer coupling, but the hole donation to the host upon oxygen intercalation may not be excluded.

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XANES and EXAFS studies on a new superconducting intercalation compound, AgIBi₂Sr₂CaCu₂O_y

Abstract

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