Zn- or Ca-substitution effects on Raman scattering in NdBa2Cu3O7

N. Watanabe; I. Kato; T. Machi; S. Shibata; N. Koshizuka; M. Murakami

doi:10.1016/S0921-4534(02)01439-9

Zn- or Ca-substitution effects on Raman scattering in NdBa₂Cu₃O₇

N. Watanabe, I. Kato, T. Machi, S. Shibata, N. Koshizuka, M. Murakami

研究成果: Article › 査読

3 被引用数 (Scopus)

抄録

The polarized Raman spectra of Zn or Ca doped NdBa₂Cu₃O_7-δ single crystals have been investigated. It was found that the linewidth of Ba mode in Zn doped Nd 1:2:3 is broader than those in pure Nd 1:2:3. This result suggests that the Nd substitution on Ba sites occurred in Zn doped Nd 1:2:3. In x(zz)x̄ geometry the relative intensity of the O(4) mode in Zn doped Nd 1:2:3 is smaller than those in pure or Ca doped Nd 1:2:3. The difference between Zn doped and Ca doped Nd 1:2:3 in the relative intensity of the O(4) mode may be produced by the disordering in the CuO₂ plane.

本文言語	English
ページ（範囲）	337-340
ページ数	4
ジャーナル	Physica C: Superconductivity and its applications
巻	378-381
号	PART 1
DOI	https://doi.org/10.1016/S0921-4534(02)01439-9
出版ステータス	Published - 2002 10月 1
外部発表	はい

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
エネルギー工学および電力技術
電子工学および電気工学

文献へのアクセス

10.1016/S0921-4534(02)01439-9

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引用スタイル

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title = "Zn- or Ca-substitution effects on Raman scattering in NdBa2Cu3O7",

abstract = "The polarized Raman spectra of Zn or Ca doped NdBa2Cu3O7-δ single crystals have been investigated. It was found that the linewidth of Ba mode in Zn doped Nd 1:2:3 is broader than those in pure Nd 1:2:3. This result suggests that the Nd substitution on Ba sites occurred in Zn doped Nd 1:2:3. In x(zz){\=x} geometry the relative intensity of the O(4) mode in Zn doped Nd 1:2:3 is smaller than those in pure or Ca doped Nd 1:2:3. The difference between Zn doped and Ca doped Nd 1:2:3 in the relative intensity of the O(4) mode may be produced by the disordering in the CuO2 plane.",

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

author = "N. Watanabe and I. Kato and T. Machi and S. Shibata and N. Koshizuka and M. Murakami",

note = "Funding Information: This work is supported by NEDO as Collaborative Research and development of Fundamental Technologies for Superconductivity Applications.",

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T1 - Zn- or Ca-substitution effects on Raman scattering in NdBa2Cu3O7

AU - Watanabe, N.

AU - Kato, I.

AU - Machi, T.

AU - Shibata, S.

AU - Koshizuka, N.

AU - Murakami, M.

N1 - Funding Information: This work is supported by NEDO as Collaborative Research and development of Fundamental Technologies for Superconductivity Applications.

PY - 2002/10/1

Y1 - 2002/10/1

N2 - The polarized Raman spectra of Zn or Ca doped NdBa2Cu3O7-δ single crystals have been investigated. It was found that the linewidth of Ba mode in Zn doped Nd 1:2:3 is broader than those in pure Nd 1:2:3. This result suggests that the Nd substitution on Ba sites occurred in Zn doped Nd 1:2:3. In x(zz)x̄ geometry the relative intensity of the O(4) mode in Zn doped Nd 1:2:3 is smaller than those in pure or Ca doped Nd 1:2:3. The difference between Zn doped and Ca doped Nd 1:2:3 in the relative intensity of the O(4) mode may be produced by the disordering in the CuO2 plane.

AB - The polarized Raman spectra of Zn or Ca doped NdBa2Cu3O7-δ single crystals have been investigated. It was found that the linewidth of Ba mode in Zn doped Nd 1:2:3 is broader than those in pure Nd 1:2:3. This result suggests that the Nd substitution on Ba sites occurred in Zn doped Nd 1:2:3. In x(zz)x̄ geometry the relative intensity of the O(4) mode in Zn doped Nd 1:2:3 is smaller than those in pure or Ca doped Nd 1:2:3. The difference between Zn doped and Ca doped Nd 1:2:3 in the relative intensity of the O(4) mode may be produced by the disordering in the CuO2 plane.

KW - NdBaCuO

KW - Peak effect

KW - Phonon spectrum

KW - Raman scattering

KW - Substitution effects

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