139La-NMR study of spin-flop and spin structure in La2-xSrxCuO4(x ∼ 1/8)

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

研究成果: Article査読

5 被引用数 (Scopus)

抄録

The external field dependence of the hyperfine field at La-site has been studied on La2-xSrxCuO4(x=0.115) and La2-xBaxCuO4(x=0.125), where the magnetic ordering in Cu-3d spins exists at low temperature. In La1.885Sr0.115CuO4, a significant decrease in the resonance line width was observed above a field of Hc ≈ 7.5T, which is the direct evidence of the spin-flop in the canted-spin system with Dzyaloshinski-Moriya interaction. The spin-flop field Hc of 7.5T is slightly lower than that in La2CuO4(Hc ≈ 10T), reflecting the decrease of the tilting angle of the CuO6 octahedra by the substitution of Sr2+ ion for La-site.

本文言語English
ページ(範囲)479-483
ページ数5
ジャーナルJournal of Low Temperature Physics
117
3-4
DOI
出版ステータスPublished - 1999 1 1
外部発表はい

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 材料科学(全般)
  • 凝縮系物理学

フィンガープリント

「<sup>139</sup>La-NMR study of spin-flop and spin structure in La<sub>2-x</sub>Sr<sub>x</sub>CuO<sub>4</sub>(x ∼ 1/8)」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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