Heat-treatment effects on the Raman scattering spectra of NdBa 2Cu3O7-δ

N. Watanabe; R. Hareyama; T. Machi; S. Arai; N. Koshizuka; M. Murakami

doi:10.1016/S0921-4534(03)01234-6

Heat-treatment effects on the Raman scattering spectra of NdBa ₂Cu₃O_7-δ

N. Watanabe, R. Hareyama, T. Machi, S. Arai, N. Koshizuka, M. Murakami

Research output: Contribution to journal › Conference article › peer-review

Abstract

The polarized Raman spectra of NdBa₂Cu₃O _7-δ single crystals heated at ∼900 °C under various oxygen partial pressures (P_O2) have been investigated. It was found that the linewidth of Ba mode sharpens and the relative intensity of this mode is enhanced with increasing P_O2. These observations show that such a high-temperature heat-treatment changes the distribution of Nd-rich 123 clusters.

Original language	English
Pages (from-to)	175-180
Number of pages	6
Journal	Physica C: Superconductivity and its applications
Volume	392-396
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4534(03)01234-6
Publication status	Published - 2003 Oct
Externally published	Yes
Event	Proceedings of the 15th International Symposium on Superconduc - Yokohama, Japan Duration: 2002 Nov 11 → 2002 Nov 13

Keywords

NdBaCuO
Peak effect
Phonon spectrum
Raman scattering
Substitution effects

ASJC Scopus subject areas

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

Access to Document

10.1016/S0921-4534(03)01234-6

Cite this

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title = "Heat-treatment effects on the Raman scattering spectra of NdBa 2Cu3O7-δ",

abstract = "The polarized Raman spectra of NdBa2Cu3O 7-δ single crystals heated at ∼900 °C under various oxygen partial pressures (PO2) have been investigated. It was found that the linewidth of Ba mode sharpens and the relative intensity of this mode is enhanced with increasing PO2. These observations show that such a high-temperature heat-treatment changes the distribution of Nd-rich 123 clusters.",

keywords = "NdBaCuO, Peak effect, Phonon spectrum, Raman scattering, Substitution effects",

author = "N. Watanabe and R. Hareyama and T. Machi and S. Arai and N. Koshizuka and M. Murakami",

note = "Funding Information: We would like to thank Dr. N. Chikumoto for discussions and her careful reading. This work is supported by NEDO as Collaborative Research and development of Fundamental Technologies for Superconductivity Applications.; Proceedings of the 15th International Symposium on Superconduc ; Conference date: 11-11-2002 Through 13-11-2002",

year = "2003",

month = oct,

doi = "10.1016/S0921-4534(03)01234-6",

language = "English",

volume = "392-396",

pages = "175--180",

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

issn = "0921-4534",

publisher = "Elsevier",

number = "PART 1",

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TY - JOUR

T1 - Heat-treatment effects on the Raman scattering spectra of NdBa 2Cu3O7-δ

AU - Watanabe, N.

AU - Hareyama, R.

AU - Machi, T.

AU - Arai, S.

AU - Koshizuka, N.

AU - Murakami, M.

N1 - Funding Information: We would like to thank Dr. N. Chikumoto for discussions and her careful reading. This work is supported by NEDO as Collaborative Research and development of Fundamental Technologies for Superconductivity Applications.

PY - 2003/10

Y1 - 2003/10

N2 - The polarized Raman spectra of NdBa2Cu3O 7-δ single crystals heated at ∼900 °C under various oxygen partial pressures (PO2) have been investigated. It was found that the linewidth of Ba mode sharpens and the relative intensity of this mode is enhanced with increasing PO2. These observations show that such a high-temperature heat-treatment changes the distribution of Nd-rich 123 clusters.

AB - The polarized Raman spectra of NdBa2Cu3O 7-δ single crystals heated at ∼900 °C under various oxygen partial pressures (PO2) have been investigated. It was found that the linewidth of Ba mode sharpens and the relative intensity of this mode is enhanced with increasing PO2. These observations show that such a high-temperature heat-treatment changes the distribution of Nd-rich 123 clusters.

KW - NdBaCuO

KW - Peak effect

KW - Phonon spectrum

KW - Raman scattering

KW - Substitution effects

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DO - 10.1016/S0921-4534(03)01234-6

M3 - Conference article

AN - SCOPUS:0043286154

SN - 0921-4534

VL - 392-396

SP - 175

EP - 180

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

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