Volume 70, Number 2, April 2005
|Page(s)||232 - 236|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||30 March 2005|
Possible stripe fluctuations in yx at room temperature observed by NQR spectroscopy
National Laboratory of Solid State Microstructures, Department of Physics Nanjing University - Nanjing 210093, PRC
Accepted: 3 March 2005
nuclear quadrupole resonance (NQR) studies at room temperature were reported on six -doped x samples. The NQR spectrum for has a different line shape compared with those from the other samples, which is similar to the case of the insulating . This may suggest that the stripe fluctuations at such a special and doping fall into the frequency window of NQR. The spectra of the other five samples were analysed by pairs of and Gaussians at A and B sites. The full width of half-maxim (FWHM) for at B sites is anomalously large for , which was considered to be related to the stripe fluctuations.
PACS: 74.25.Nf – Response to electromagnetic fields (nuclear magnetic resonance, surface impedance, etc.) / 74.72.Dn – La-based cuprates
© EDP Sciences, 2005
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