Zn-neighbor Cu NQR in Zn-substituted YBa2Cu3O7-δ and YBa2Cu4O8

Y. Itoh, T. Machi, C. Kasai, S. Adachi, N. Watanabe, N. Koshizuka, M. Murakami

研究成果: Article査読

35 被引用数 (Scopus)

抄録

We studied local electronic states near. Zn in optimally doped YBa2(Cu1-xZnx) 3O7-δ and underdoped YBa2(Cu1-xZnx)4O8 via satellite signals of plane-site Cu(2) nuclear quadrupole resonance (NQR) spectra. From the relative intensity of Cu NQR spectra, the satellite signals are assigned to Zn-neighbor Cu NQR lines. The Cu nuclear spin-lattice relaxation time of the satellite signal is shorter than that of the main signal, which indicates that the magnetic correlation is locally enhanced near Zn both for the underdoped and the optimally doped systems. The pure YBa2Cu4O8 is a stoichiometric, homogenous, underdoped electronic system; nevertheless, the Zn-induced inhomogeneous magnetic response in the CuO2 plane is more marked than that of the optimally doped YBa2Cu3O7-δ.

本文言語English
論文番号064516
ページ(範囲)645161-645168
ページ数8
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
67
6
出版ステータスPublished - 2003 2 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

フィンガープリント

「Zn-neighbor Cu NQR in Zn-substituted YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub> and YBa<sub>2</sub>Cu<sub>4</sub>O<sub>8</sub>」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。

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