Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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)

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 April 20, 2024)
Created October 16, 2008