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

Research output: Contribution to journalArticle

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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.

LanguageEnglish
Pages479-483
Number of pages5
JournalJournal of Low Temperature Physics
Volume117
Issue number3-4
StatePublished - 1999
Externally publishedYes

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Linewidth
Magnetization
Substitution reactions
Nuclear magnetic resonance
Ions
nuclear magnetic resonance
Temperature
resonance lines
substitutes
ions
interactions

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Chiba, K., Goto, T., Mori, M., Suzuki, T., Seki, K., & Fukase, T. (1999). 139La-NMR study of spin-flop and spin structure in La2-xSrxCuO4(x ∼ 1/8). Journal of Low Temperature Physics, 117(3-4), 479-483.

139La-NMR study of spin-flop and spin structure in La2-xSrxCuO4(x ∼ 1/8). / Chiba, Kaichiro; Goto, Takayuki; Mori, Masakatsu; Suzuki, Takao; Seki, Katsutoshi; Fukase, Tetsuo.

In: Journal of Low Temperature Physics, Vol. 117, No. 3-4, 1999, p. 479-483.

Research output: Contribution to journalArticle

Chiba, K, Goto, T, Mori, M, Suzuki, T, Seki, K & Fukase, T 1999, '139La-NMR study of spin-flop and spin structure in La2-xSrxCuO4(x ∼ 1/8)' Journal of Low Temperature Physics, vol. 117, no. 3-4, pp. 479-483.
Chiba, Kaichiro ; Goto, Takayuki ; Mori, Masakatsu ; Suzuki, Takao ; Seki, Katsutoshi ; Fukase, Tetsuo. / 139La-NMR study of spin-flop and spin structure in La2-xSrxCuO4(x ∼ 1/8). In: Journal of Low Temperature Physics. 1999 ; Vol. 117, No. 3-4. pp. 479-483
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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.

AB - 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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