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

doi:10.1023/a:1022558809087

¹³⁹La-NMR study of spin-flop and spin structure in La_2-xSr_xCuO₄(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 La_2-xSr_xCuO₄(x=0.115) and La_2-xBa_xCuO₄(x=0.125), where the magnetic ordering in Cu-3d spins exists at low temperature. In La_1.885Sr_0.115CuO₄, 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 H_c of 7.5T is slightly lower than that in La₂CuO₄(H_c ≈ 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
巻	117
号	3-4
DOI	https://doi.org/10.1023/a:1022558809087
出版ステータス	Published - 1999 1月 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

文献へのアクセス

10.1023/a:1022558809087

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引用スタイル

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

abstract = "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.",

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AU - Chiba, Kaichiro

AU - Goto, Takayuki

AU - Mori, Masakatsu

AU - Suzuki, Takao

AU - Seki, Katsutoshi

AU - Fukase, Tetsuo

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N2 - 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.

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