Raman scattering of the charge-spin stripes in La1.67Sr0.33NiO4

K. Yamamoto, T. Katsufuji, T. Tanabe, Y. Tokura

研究成果: Article査読

64 被引用数 (Scopus)

抄録

Raman scattering spectra have been investigated for a single crystal of La1.67Sr0.33NiO4 which shows stripe ordering of charge (Tc = 230 K) and spin (Ts = 180 K. Upon the charge ordering, the activated phonon peaks grow with the evolution of the charge modulation amplitude, while the electronic Raman continuum of the metallic state abruptly disappears. The two broad peaks with the B1g symmetry arising from the two-magnon excitations emerge immediately below Tc, indicating the evolution of the two-dimensional antiferromagnetic spin correlation in the charge-ordered state even above Ts.

本文言語English
ページ(範囲)1493-1496
ページ数4
ジャーナルPhysical Review Letters
80
7
DOI
出版ステータスPublished - 1998 2月 16
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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