Dynamical stripe structure in La₂₋ₓSrₓCuO₄ observed by Raman scattering
Sugai, S. · Hayamizu, N.
Original · EN
The dynamical stripe structure relating to the "1/8 problem" was investigated in La₂₋ₓSrₓCuO₄ utilizing the high frequency response of Raman scattering. The split of the two-magnon peak due to the formation of the stripe structure was observed at whole Sr concentration region from x=0.035 to 0.25 at low temperatures. Especially clear split was observed at low carrier concentration region x=0.035 - 0.06 and at x 1/8. The onset temperatures of these stripe structures are as high as 300-350 K, which are much higher than the temperatures measured by slow response probes.
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