In-situ EPR study of room-temperature evolution of YBa2Cu3O6+x ceramics

A. I. Shames; B. Bandyopadhyay; S. D. Goren; H. Shaked; C. Korn

doi:10.1016/0921-4534(95)00410-6

In-situ EPR study of room-temperature evolution of YBa₂Cu₃O_6+x ceramics

A. I. Shames
, B. Bandyopadhyay
, S. D. Goren
, H. Shaked
, C. Korn

Department of Physics

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

4 Scopus citations

Abstract

Cu²⁺ EPR has been used to study the process of room-temperature annealing in powdered YBa₂Cu₃O_6+x (0 ≤ x ≤ 1) samples. The annealing and the consequent changes in the oxygen coordination of the Cu atoms in the basal plane do not affect the EPR signal. The results suggest that for both oxygen-deficient and oxygen-rich samples, the Cu²⁺ EPR signal can arise only from defects unrelated to chain ordering. Samples exposed to ambient atmosphere exhibit growth of the EPR signal with time. The nature of this signal is discussed.

Original language	English
Pages (from-to)	177-182
Number of pages	6
Journal	Physica C: Superconductivity and its Applications
Volume	252
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(95)00410-6
State	Published - 1 Oct 1995

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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10.1016/0921-4534(95)00410-6

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title = "In-situ EPR study of room-temperature evolution of YBa2Cu3O6+x ceramics",

abstract = "Cu2+ EPR has been used to study the process of room-temperature annealing in powdered YBa2Cu3O6+x (0 ≤ x ≤ 1) samples. The annealing and the consequent changes in the oxygen coordination of the Cu atoms in the basal plane do not affect the EPR signal. The results suggest that for both oxygen-deficient and oxygen-rich samples, the Cu2+ EPR signal can arise only from defects unrelated to chain ordering. Samples exposed to ambient atmosphere exhibit growth of the EPR signal with time. The nature of this signal is discussed.",

author = "Shames, \{A. I.\} and B. Bandyopadhyay and Goren, \{S. D.\} and H. Shaked and C. Korn",

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doi = "10.1016/0921-4534(95)00410-6",

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T1 - In-situ EPR study of room-temperature evolution of YBa2Cu3O6+x ceramics

AU - Shames, A. I.

AU - Bandyopadhyay, B.

AU - Goren, S. D.

AU - Shaked, H.

AU - Korn, C.

PY - 1995/10/1

Y1 - 1995/10/1

N2 - Cu2+ EPR has been used to study the process of room-temperature annealing in powdered YBa2Cu3O6+x (0 ≤ x ≤ 1) samples. The annealing and the consequent changes in the oxygen coordination of the Cu atoms in the basal plane do not affect the EPR signal. The results suggest that for both oxygen-deficient and oxygen-rich samples, the Cu2+ EPR signal can arise only from defects unrelated to chain ordering. Samples exposed to ambient atmosphere exhibit growth of the EPR signal with time. The nature of this signal is discussed.

AB - Cu2+ EPR has been used to study the process of room-temperature annealing in powdered YBa2Cu3O6+x (0 ≤ x ≤ 1) samples. The annealing and the consequent changes in the oxygen coordination of the Cu atoms in the basal plane do not affect the EPR signal. The results suggest that for both oxygen-deficient and oxygen-rich samples, the Cu2+ EPR signal can arise only from defects unrelated to chain ordering. Samples exposed to ambient atmosphere exhibit growth of the EPR signal with time. The nature of this signal is discussed.

UR - https://www.scopus.com/pages/publications/0029394572

U2 - 10.1016/0921-4534(95)00410-6

DO - 10.1016/0921-4534(95)00410-6

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AN - SCOPUS:0029394572

SN - 0921-4534

VL - 252

SP - 177

EP - 182

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 1-2

ER -

In-situ EPR study of room-temperature evolution of YBa₂Cu₃O_6+x ceramics

Abstract

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