139La-NMR Study on La-based High-Tc Cuprates La2-xMxCuO4 (M=Sr, Ba) around x=0.115 under High Magnetic Field

Takayuki Goto, Kaichiro Chiba, Masakatsu Mori, Takao Suzuki, Katsutoshi Seki, Tetsuo Fukase

研究成果: Article査読

17 被引用数 (Scopus)

抄録

The effect of the external field on La-NMR spectra has been studied on La-based high-Tc cuprates La2-xSrxCuO4(x ≈ 0.115) and La2-xBaxCuO4(x=0.125), where the magnetic ordering in Cu-3d spin exists at low temperature. In the magnetically ordered state, the broadening in the resonance line was observed, reflecting the hyperfine field at the La-site contributed by the Cu-3d spins. By applying a high magnetic field of 15 T, this broadening in La2-xSrxCuO4 showed a significant shrink, which is interpreted as the spin-flop in the canted-spin system with the Dzyaloshinski-Moriya interaction. A model is proposed to explain both this spin-flop and the previously-reported anomalous field dependence of the structural instability in this system.

本文言語English
ページ(範囲)2870-2874
ページ数5
ジャーナルjournal of the physical society of japan
66
9
DOI
出版ステータスPublished - 1997 9
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy(all)

フィンガープリント 「<sup>139</sup>La-NMR Study on La-based High-T<sub>c</sub> Cuprates La<sub>2-x</sub>M<sub>x</sub>CuO<sub>4</sub> (M=Sr, Ba) around x=0.115 under High Magnetic Field」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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