Independent control of low-energy resonant states and polaron states by the Zn-doping and the structural transition in La 2-xSr xCuO 4 and La 2-xBa xCuO 4 (x=0.11)

S. Sugai; T. Adachi; K. Sugiura; T. Takahashi; K. Obara; Y. Takayanagi; Yoji Koike

doi:10.1007/s10948-008-0421-1

Independent control of low-energy resonant states and polaron states by the Zn-doping and the structural transition in La _2-xSr _xCuO ₄ and La _2-xBa _xCuO ₄ (x=0.11)

S. Sugai, T. Adachi, K. Sugiura, T. Takahashi, K. Obara, Y. Takayanagi, Yoji Koike

工学研究科・応用物理学専攻

研究成果: Article › 査読

1 被引用数 (Scopus)

抄録

The superconductivity depression mechanisms at x≈1/8 in La _2-x Ba _x CuO ₄ and Zn substitution in La _2-x Sr _x CuO ₄ were investigated by Raman scattering. About 80% of low-energy electronic states are two-dimensional at x≈1/8 and form the Fermi arc around (π/2,π/2). The low-energy states are composed of the resonant peak relating to the insulator-metal transition and the polaron states of the B _3u phonons. Zn substitution depresses the resonant peak, while the LTT structure depresses the polaron states. The superconductivity is suppressed if one of them is reduced.

本文言語	English
ページ（範囲）	313-317
ページ数	5
ジャーナル	Journal of Superconductivity and Novel Magnetism
巻	22
号	3
DOI	https://doi.org/10.1007/s10948-008-0421-1
出版ステータス	Published - 2009 4月 1

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

文献へのアクセス

10.1007/s10948-008-0421-1

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フィンガープリント

「Independent control of low-energy resonant states and polaron states by the Zn-doping and the structural transition in La _2-xSr _xCuO ₄ and La _2-xBa _xCuO ₄ (x=0.11)」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル

Sugai, S., Adachi, T., Sugiura, K., Takahashi, T., Obara, K., Takayanagi, Y., & Koike, Y. (2009). Independent control of low-energy resonant states and polaron states by the Zn-doping and the structural transition in La _2-xSr _xCuO ₄ and La _2-xBa _xCuO ₄ (x=0.11). Journal of Superconductivity and Novel Magnetism, 22(3), 313-317. https://doi.org/10.1007/s10948-008-0421-1

Sugai, S, Adachi, T, Sugiura, K, Takahashi, T, Obara, K, Takayanagi, Y & Koike, Y 2009, 'Independent control of low-energy resonant states and polaron states by the Zn-doping and the structural transition in La _2-xSr _xCuO ₄ and La _2-xBa _xCuO ₄ (x=0.11)', Journal of Superconductivity and Novel Magnetism, vol. 22, no. 3, pp. 313-317. https://doi.org/10.1007/s10948-008-0421-1

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abstract = "The superconductivity depression mechanisms at x≈1/8 in La 2-x Ba x CuO 4 and Zn substitution in La 2-x Sr x CuO 4 were investigated by Raman scattering. About 80% of low-energy electronic states are two-dimensional at x≈1/8 and form the Fermi arc around (π/2,π/2). The low-energy states are composed of the resonant peak relating to the insulator-metal transition and the polaron states of the B 3u phonons. Zn substitution depresses the resonant peak, while the LTT structure depresses the polaron states. The superconductivity is suppressed if one of them is reduced.",

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author = "S. Sugai and T. Adachi and K. Sugiura and T. Takahashi and K. Obara and Y. Takayanagi and Yoji Koike",

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AU - Adachi, T.

AU - Sugiura, K.

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AU - Obara, K.

AU - Takayanagi, Y.

AU - Koike, Yoji

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