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PUBLICATIONS

Raman Scattering Study of High-Frequency Continuum Enhancement in La1.475Nd0.4Sr0.125CuO4

Published

Author(s)

B Nachumi, N Ichikawa, Y Nakamura, S Uchida

Abstract

We investigate the temperature and polarization dependences of the Raman scattering intensity in a single crystal sample of La1.475Nd0.4Sr0.125CuO4which is known to exhibit antiphase stripe magnetic/charge order below T = 30 K.While the signature of charge ordering in the phonon spectrum is weak at best, the electronic continuum at higher frequencies (Raman shift > 1000 cm-1) shows atwo-component enhancement which increases with decreasing temperature.This enhancement is interpreted as the signature of Raman scattering fromrelatively slow fluctuations of the stripe phase for temperatures 200 K to 10 K.
Citation
Physical Review B (Condensed Matter and Materials Physics)
Pub Type
Journals

Keywords

cuprate, Raman, stripe order

Citation

Nachumi, B. , Ichikawa, N. , Nakamura, Y. and Uchida, S. (2008), Raman Scattering Study of High-Frequency Continuum Enhancement in La<sub>1.475</sub>Nd<sub>0.4</sub>Sr<sub>0.125</sub>CuO<sub>4</sub>, Physical Review B (Condensed Matter and Materials Physics) (Accessed December 26, 2024)

Issues

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Created October 16, 2008