Low-Energy Spin Fluctuations in La2−xSrxCu1−yZnyO4 (x=0.14, y=0.012)

Masaaki Matsuda; R. J. Birgeneau; H. Chou; Yasuo Endoh; M. A. Kastner; Hironao Kojima; Kiyoshi Kuroda; G. Shirane; Isao Tanaka; Kazuyoshi Yamada

doi:10.1143/JPSJ.62.443

Low-Energy Spin Fluctuations in La_2−xSr_xCu_1−yZn_yO₄ (x=0.14, y=0.012)

Masaaki Matsuda, R. J. Birgeneau, H. Chou, Yasuo Endoh, M. A. Kastner, Hironao Kojima, Kiyoshi Kuroda, G. Shirane, Isao Tanaka, Kazuyoshi Yamada

著者情報

Masaaki Matsuda
Department of Physics, Tohoku University
R. J. Birgeneau
Department of Physics, Massachusetts Institute of Technology
H. Chou
Department of Physics, Brookhaven National Laboratory
Yasuo Endoh
Department of Physics, Tohoku University
M. A. Kastner
Department of Physics, Massachusetts Institute of Technology
Hironao Kojima
Institute of Inorganic Synthesis, Faculty of Engineering, Yamanashi University
Kiyoshi Kuroda
Department of Physics, Tohoku University
G. Shirane
Department of Physics, Brookhaven National Laboratory
Isao Tanaka
Institute of Inorganic Synthesis, Faculty of Engineering, Yamanashi University
Kazuyoshi Yamada
Department of Physics, Tohoku University

キーワード: high-T_C oxide superconductor, impurity effect, neutron scattering, spin dynamics

ジャーナル認証あり

1993 年 62 巻 2 号 p. 443-446

DOI https://doi.org/10.1143/JPSJ.62.443

詳細

抄録

Neutron scattering experiments have been performed to study the dynamic spin properties of single-crystal La_1.86Sr_0.14Cu_0.988Zn_0.012O₄ (T_C=16 K). The width of S(Q, ω) in momentum space decreases at low ω and at low temperatures. The intensity at low energies at the incommensurate peak position (π(1−δ), π) shows a broad maximum as a function of temperature around the superconducting transition temperature T_C. This behavior is qualitatively similar to that observed by Thurston et al. in La_1.85Sr_0.15CuO₄ (T_C=33 K).

責任著者(Corresponding author)

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