Elastische Neutronenstreuexperimente von Tranquada et al. In der statischen Streifenphase ist die Supraleitung reduziert. Serie bei 60 - 80 K stattfindet. System mit gleichem Sr-Gehalt. Neutronendaten von Tranquada et al.
Superconductivity is reduced in the static stripe phase.
The temperature dependence of the spontaneous muon precession frequency and of the longitudinal and transverse damping rates have been deduced from the spectra. The magnetic phase diagram of the Eu-doped series, which is presumed to be typical for the LTT phase, is established in this work. At present, it is not clear whether the magnetic moment of the Nd ions increases the onset temperature of spin stripe order in comparison to the Eu-doped system. Below 10 K, the interaction of the Nd moments with the Cu spins induces an increase of the muon spin precession frequency as well as of the longitudinal and transverse damping rates. This can be explained by a reorientation of the copper spins in agreement with neutron data of Tranquada et al.