Field-induced spin reorientation and low-temperature structural phase transition in La2-xSrxCuO4

T. Goto, Takao Suzuki, K. Chiba, T. Shinoda, M. Mori, T. Fukase

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The effect of the magnetic field on the crystal structural and the magnetic ordering at low temperatures of La2-xSrxCuO4 (x ∼ 1/8) has been studied using the ultrasonic and NMR measurements. An increase of the sound velocity Vs below Tud2 (∼ 10 K at H = 0) is drastically enhanced by applying the field, suggesting that the magnetic field promotes the structural phase transition to the tetragonal phase. A broadening of the resonance line of La-NMR in the magnetically ordered state below TN (∼ 35 K at x = 0.115) shows a significant shrink by applying a high magnetic field of 15 T, 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 field-dependent structural instability described above in this system.

Original languageEnglish
Pages (from-to)572-575
Number of pages4
JournalPhysica B: Condensed Matter
Volume246-247
Publication statusPublished - 1998 May 29
Externally publishedYes

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retraining
Phase transitions
Magnetic fields
magnetic fields
Nuclear magnetic resonance
nuclear magnetic resonance
Acoustic wave velocity
acoustic velocity
resonance lines
Temperature
Magnetization
ultrasonics
Ultrasonics
Crystals
crystals
interactions

Keywords

  • La-NMR
  • LaSrCuO
  • Spin-flop
  • Structural phase transition

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Field-induced spin reorientation and low-temperature structural phase transition in La2-xSrxCuO4. / Goto, T.; Suzuki, Takao; Chiba, K.; Shinoda, T.; Mori, M.; Fukase, T.

In: Physica B: Condensed Matter, Vol. 246-247, 29.05.1998, p. 572-575.

Research output: Contribution to journalArticle

Goto, T. ; Suzuki, Takao ; Chiba, K. ; Shinoda, T. ; Mori, M. ; Fukase, T. / Field-induced spin reorientation and low-temperature structural phase transition in La2-xSrxCuO4. In: Physica B: Condensed Matter. 1998 ; Vol. 246-247. pp. 572-575.
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