Issue |
Europhys. Lett.
Volume 59, Number 1, July 2002
|
|
---|---|---|
Page(s) | 128 - 134 | |
Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
DOI | https://doi.org/10.1209/epl/i2002-00167-2 | |
Published online | 01 June 2002 |
Fingerprints of charge ordering in anelastic spectra
of underdoped
National Laboratory of Solid State Microstructures and Physics Department
Nanjing University - Nanjing 210093, PRC
Received:
4
February
2002
Accepted:
1
April
2002
We carefully investigate the anelastic spectra of LaSrxCuO4
from 90 to 300 K at kHz range. Two internal friction peaks
are observed near 130 and 160 K, respectively, whose amplitudes demonstrate
crossovers around the insulating-superconducting phase boundary
. The 160 K peak is of phase-like transition character and originates
from the localization of diagonal charge stripes by LTO lattice and the
resultant lattice adjustment. The origin of the 130 K relaxation is
discussed in the framework of structural inhomogeneity as a combined result
of charge inhomogeneity and electron-phonon coupling.
PACS: 74.25.Ld – Mechanical and acoustical properties, elasticity, and ultrasonic attenuation / 63.20.Kr – Phonon-electron and phonon-phonon interactions / 74.72.Dn – La-based cuprates
© EDP Sciences, 2002
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.