A new superconductor with 1222 structure (Cu1 - XMx)Sr2(Y1 - yCey)2Cu2Oδ(M = Ti, V, Cr, Fe, Co, Ga, Ge, Mo, Ce, W and Re)

M. Tamura; M. Sato; T. Den; J. Akimitsu

doi:10.1016/S0921-4534(98)00216-0

A new superconductor with 1222 structure (Cu_{1 - X}M_x)Sr₂(Y_{1 - y}Ce_y)₂Cu₂Oδ(M = Ti, V, Cr, Fe, Co, Ga, Ge, Mo, Ce, W and Re)

M. Tamura, M. Sato, T. Den, J. Akimitsu

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

8 Citations (Scopus)

Abstract

We systematically synthesized (Cu, M)-1222 cuprates, (Cu_{1 - x}M_x)Sr₂(Y_{1 - y}Ce_y)₂Cu₂O_δ (M = Ti, V, Cr, Fe, Co, Ga, Ge, Mo, Ce, W and Re), and succeeded for the first time in synthesizing new 1222 compounds with M = Ti, V, Cr, Co, Ge, W and Re. All samples except for the compound with Fe show superconductivity, giving the highest T_c ∼ 43 K for annealed M = Re sample ((Cu_0.85M_0.15)Sr₂(Y_0.75Ce _0.25)₂Cu₂O_δ). We compared the T_c's with the crystal structures and investigated the difference between annealed and as-sintered samples. We point out here that T_c is related to the valencies of the M-elements and the O-Cu-O angle in the CuO₂ planes.

Original language	English
Pages (from-to)	1-10
Number of pages	10
Journal	Physica C: Superconductivity and its applications
Volume	303
Issue number	1-2
DOIs	https://doi.org/10.1016/S0921-4534(98)00216-0
Publication status	Published - Jul 10 1998
Externally published	Yes

Keywords

Cu 1222 structure
Cuprates
Superconductor

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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title = "A new superconductor with 1222 structure (Cu1 - XMx)Sr2(Y1 - yCey)2Cu2Oδ(M = Ti, V, Cr, Fe, Co, Ga, Ge, Mo, Ce, W and Re)",

abstract = "We systematically synthesized (Cu, M)-1222 cuprates, (Cu1 - xMx)Sr2(Y1 - yCey)2Cu2Oδ (M = Ti, V, Cr, Fe, Co, Ga, Ge, Mo, Ce, W and Re), and succeeded for the first time in synthesizing new 1222 compounds with M = Ti, V, Cr, Co, Ge, W and Re. All samples except for the compound with Fe show superconductivity, giving the highest Tc ∼ 43 K for annealed M = Re sample ((Cu0.85M0.15)Sr2(Y0.75Ce 0.25)2Cu2Oδ). We compared the Tc's with the crystal structures and investigated the difference between annealed and as-sintered samples. We point out here that Tc is related to the valencies of the M-elements and the O-Cu-O angle in the CuO2 planes.",

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author = "M. Tamura and M. Sato and T. Den and J. Akimitsu",

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T1 - A new superconductor with 1222 structure (Cu1 - XMx)Sr2(Y1 - yCey)2Cu2Oδ(M = Ti, V, Cr, Fe, Co, Ga, Ge, Mo, Ce, W and Re)

AU - Tamura, M.

AU - Sato, M.

AU - Den, T.

AU - Akimitsu, J.

PY - 1998/7/10

Y1 - 1998/7/10

N2 - We systematically synthesized (Cu, M)-1222 cuprates, (Cu1 - xMx)Sr2(Y1 - yCey)2Cu2Oδ (M = Ti, V, Cr, Fe, Co, Ga, Ge, Mo, Ce, W and Re), and succeeded for the first time in synthesizing new 1222 compounds with M = Ti, V, Cr, Co, Ge, W and Re. All samples except for the compound with Fe show superconductivity, giving the highest Tc ∼ 43 K for annealed M = Re sample ((Cu0.85M0.15)Sr2(Y0.75Ce 0.25)2Cu2Oδ). We compared the Tc's with the crystal structures and investigated the difference between annealed and as-sintered samples. We point out here that Tc is related to the valencies of the M-elements and the O-Cu-O angle in the CuO2 planes.

AB - We systematically synthesized (Cu, M)-1222 cuprates, (Cu1 - xMx)Sr2(Y1 - yCey)2Cu2Oδ (M = Ti, V, Cr, Fe, Co, Ga, Ge, Mo, Ce, W and Re), and succeeded for the first time in synthesizing new 1222 compounds with M = Ti, V, Cr, Co, Ge, W and Re. All samples except for the compound with Fe show superconductivity, giving the highest Tc ∼ 43 K for annealed M = Re sample ((Cu0.85M0.15)Sr2(Y0.75Ce 0.25)2Cu2Oδ). We compared the Tc's with the crystal structures and investigated the difference between annealed and as-sintered samples. We point out here that Tc is related to the valencies of the M-elements and the O-Cu-O angle in the CuO2 planes.

KW - Cu 1222 structure

KW - Cuprates

KW - Superconductor

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