Effects of metal substitution on superconductivity and crystal structure of HgBa2CuO4+δ

W. Z. Hu, Ayako Yamamoto, M. Izumi, S. Tajima

研究成果: Article

2 引用 (Scopus)

抄録

High-Tc superconducting oxides with nominal compositions of HgBa2Cu1-xMxO4+δ (M=Fe, Co, Ni, Zn and Mg, x=0-0.03) were prepared, and crystal structure and substitution effects on superconducting properties were studied using X-ray powder diffraction, susceptibility and resistivity. Almost all single-phase samples were obtained for M=Fe, Co, Zn and Mg, while impurities such as Ni3Ba3O8 were detected for M=Ni. A significant decrease in Tc and an increase in lattice parameter a for the samples with Zn and Mg indicated that these metals were successfully substituted for Cu. On the other hand, there was no remarkable change in Tc for the sample with Fe and Co, which suggests a possibility of substitution for Hg. Zn- and Mg-substitution effects on superconductivity were discussed from the viewpoint of structural change, in comparison with the cases of La2-xSrxCuO4 and YBa2Cu3O6+δ.

元の言語English
ページ(範囲)141-148
ページ数8
ジャーナルPhysica C: Superconductivity and its Applications
356
発行部数1-2
DOI
出版物ステータスPublished - 2001 1 7
外部発表Yes

Fingerprint

Superconductivity
Substitution reactions
superconductivity
Crystal structure
Metals
substitutes
crystal structure
metals
X ray powder diffraction
Oxides
Lattice constants
lattice parameters
Impurities
magnetic permeability
impurities
electrical resistivity
oxides
Chemical analysis
diffraction
x rays

ASJC Scopus subject areas

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

これを引用

Effects of metal substitution on superconductivity and crystal structure of HgBa2CuO4+δ . / Hu, W. Z.; Yamamoto, Ayako; Izumi, M.; Tajima, S.

:: Physica C: Superconductivity and its Applications, 巻 356, 番号 1-2, 07.01.2001, p. 141-148.

研究成果: Article

@article{1a8f30415a8c42f48c9c0c19ed8b4cc6,
title = "Effects of metal substitution on superconductivity and crystal structure of HgBa2CuO4+δ",
abstract = "High-Tc superconducting oxides with nominal compositions of HgBa2Cu1-xMxO4+δ (M=Fe, Co, Ni, Zn and Mg, x=0-0.03) were prepared, and crystal structure and substitution effects on superconducting properties were studied using X-ray powder diffraction, susceptibility and resistivity. Almost all single-phase samples were obtained for M=Fe, Co, Zn and Mg, while impurities such as Ni3Ba3O8 were detected for M=Ni. A significant decrease in Tc and an increase in lattice parameter a for the samples with Zn and Mg indicated that these metals were successfully substituted for Cu. On the other hand, there was no remarkable change in Tc for the sample with Fe and Co, which suggests a possibility of substitution for Hg. Zn- and Mg-substitution effects on superconductivity were discussed from the viewpoint of structural change, in comparison with the cases of La2-xSrxCuO4 and YBa2Cu3O6+δ.",
keywords = "Crystal structure, Hg-1201, Mg-substitution, Superconductivity, Zn-substitution",
author = "Hu, {W. Z.} and Ayako Yamamoto and M. Izumi and S. Tajima",
year = "2001",
month = "1",
day = "7",
doi = "10.1016/S0921-4534(01)00131-9",
language = "English",
volume = "356",
pages = "141--148",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "1-2",

}

TY - JOUR

T1 - Effects of metal substitution on superconductivity and crystal structure of HgBa2CuO4+δ

AU - Hu, W. Z.

AU - Yamamoto, Ayako

AU - Izumi, M.

AU - Tajima, S.

PY - 2001/1/7

Y1 - 2001/1/7

N2 - High-Tc superconducting oxides with nominal compositions of HgBa2Cu1-xMxO4+δ (M=Fe, Co, Ni, Zn and Mg, x=0-0.03) were prepared, and crystal structure and substitution effects on superconducting properties were studied using X-ray powder diffraction, susceptibility and resistivity. Almost all single-phase samples were obtained for M=Fe, Co, Zn and Mg, while impurities such as Ni3Ba3O8 were detected for M=Ni. A significant decrease in Tc and an increase in lattice parameter a for the samples with Zn and Mg indicated that these metals were successfully substituted for Cu. On the other hand, there was no remarkable change in Tc for the sample with Fe and Co, which suggests a possibility of substitution for Hg. Zn- and Mg-substitution effects on superconductivity were discussed from the viewpoint of structural change, in comparison with the cases of La2-xSrxCuO4 and YBa2Cu3O6+δ.

AB - High-Tc superconducting oxides with nominal compositions of HgBa2Cu1-xMxO4+δ (M=Fe, Co, Ni, Zn and Mg, x=0-0.03) were prepared, and crystal structure and substitution effects on superconducting properties were studied using X-ray powder diffraction, susceptibility and resistivity. Almost all single-phase samples were obtained for M=Fe, Co, Zn and Mg, while impurities such as Ni3Ba3O8 were detected for M=Ni. A significant decrease in Tc and an increase in lattice parameter a for the samples with Zn and Mg indicated that these metals were successfully substituted for Cu. On the other hand, there was no remarkable change in Tc for the sample with Fe and Co, which suggests a possibility of substitution for Hg. Zn- and Mg-substitution effects on superconductivity were discussed from the viewpoint of structural change, in comparison with the cases of La2-xSrxCuO4 and YBa2Cu3O6+δ.

KW - Crystal structure

KW - Hg-1201

KW - Mg-substitution

KW - Superconductivity

KW - Zn-substitution

UR - http://www.scopus.com/inward/record.url?scp=0035819253&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035819253&partnerID=8YFLogxK

U2 - 10.1016/S0921-4534(01)00131-9

DO - 10.1016/S0921-4534(01)00131-9

M3 - Article

AN - SCOPUS:0035819253

VL - 356

SP - 141

EP - 148

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - 1-2

ER -