Superconductivity in YBa2(Cu1-xAgx)3O7-δ oxide system

C. V. Tomy; A. M. Umarji; D. T. Adroja; S. K. Malik; Ram Prasad; N. C. Soni; Ashok Mohan; C. K. Gupta

doi:10.1016/0038-1098(87)90554-0

Superconductivity in YBa₂(Cu_1-xAg_x)₃O_7-δ oxide system

C. V. Tomy, A. M. Umarji, D. T. Adroja, S. K. Malik, Ram Prasad, N. C. Soni, Ashok Mohan, C. K. Gupta

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

17 Citations (Scopus)

Abstract

The oxide YBa₂Cu₃O_7-δ exhibits superconductivity in the liquid nitrogen temperature range. The Cu ion is in a mixed-valent state in this system and is thought to play a very important role in the occurrence of superconductivity. We have studied the effect of partial replacement of mixed-valent Cu by monovalent Ag on the superconductivity in this system. Although normal state magnetic susceptibility measurements indicate an increase in the Cu³⁺/Cu²⁺ ratio on Ag substitution, the superconducting transition temperature is observed to decreases. Creation of oxygen vacancies in the presence of Ag may be partly responsible for the reduction in T_c.

Original language	English
Pages (from-to)	889-891
Number of pages	3
Journal	Solid State Communications
Volume	64
Issue number	6
DOIs	https://doi.org/10.1016/0038-1098(87)90554-0
Publication status	Published - Nov 1987
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

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title = "Superconductivity in YBa2(Cu1-xAgx)3O7-δ oxide system",

abstract = "The oxide YBa2Cu3O7-δ exhibits superconductivity in the liquid nitrogen temperature range. The Cu ion is in a mixed-valent state in this system and is thought to play a very important role in the occurrence of superconductivity. We have studied the effect of partial replacement of mixed-valent Cu by monovalent Ag on the superconductivity in this system. Although normal state magnetic susceptibility measurements indicate an increase in the Cu3+/Cu2+ ratio on Ag substitution, the superconducting transition temperature is observed to decreases. Creation of oxygen vacancies in the presence of Ag may be partly responsible for the reduction in Tc.",

author = "Tomy, \{C. V.\} and Umarji, \{A. M.\} and Adroja, \{D. T.\} and Malik, \{S. K.\} and Ram Prasad and Soni, \{N. C.\} and Ashok Mohan and Gupta, \{C. K.\}",

year = "1987",

month = nov,

doi = "10.1016/0038-1098(87)90554-0",

language = "English",

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journal = "Solid State Communications",

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T1 - Superconductivity in YBa2(Cu1-xAgx)3O7-δ oxide system

AU - Tomy, C. V.

AU - Umarji, A. M.

AU - Adroja, D. T.

AU - Malik, S. K.

AU - Prasad, Ram

AU - Soni, N. C.

AU - Mohan, Ashok

AU - Gupta, C. K.

PY - 1987/11

Y1 - 1987/11

N2 - The oxide YBa2Cu3O7-δ exhibits superconductivity in the liquid nitrogen temperature range. The Cu ion is in a mixed-valent state in this system and is thought to play a very important role in the occurrence of superconductivity. We have studied the effect of partial replacement of mixed-valent Cu by monovalent Ag on the superconductivity in this system. Although normal state magnetic susceptibility measurements indicate an increase in the Cu3+/Cu2+ ratio on Ag substitution, the superconducting transition temperature is observed to decreases. Creation of oxygen vacancies in the presence of Ag may be partly responsible for the reduction in Tc.

AB - The oxide YBa2Cu3O7-δ exhibits superconductivity in the liquid nitrogen temperature range. The Cu ion is in a mixed-valent state in this system and is thought to play a very important role in the occurrence of superconductivity. We have studied the effect of partial replacement of mixed-valent Cu by monovalent Ag on the superconductivity in this system. Although normal state magnetic susceptibility measurements indicate an increase in the Cu3+/Cu2+ ratio on Ag substitution, the superconducting transition temperature is observed to decreases. Creation of oxygen vacancies in the presence of Ag may be partly responsible for the reduction in Tc.

UR - https://www.scopus.com/pages/publications/0023450770

U2 - 10.1016/0038-1098(87)90554-0

DO - 10.1016/0038-1098(87)90554-0

M3 - Article

AN - SCOPUS:0023450770

SN - 0038-1098

VL - 64

SP - 889

EP - 891

JO - Solid State Communications

JF - Solid State Communications

IS - 6

ER -

Superconductivity in YBa₂(Cu_1-xAg_x)₃O_7-δ oxide system

Abstract

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