title: Inhomogeneous low frequency spin dynamics in La(1.65)Eu(0.2)Sr(0.15)CuO(4).
abstract: We report Cu and La nuclear magnetic resonance measurements in the title compound that reveal an inhomogeneous glassy behavior of the spin dynamics. A low temperature peak in the La spin lattice relaxation rate and the "wipeout" of Cu intensity both arise from these slow electronic spin fluctuations that reveal a distribution of activation energies. Inhomogeneous slowing of spin fluctuations appears to be a general feature of doped lanthanum cuprate.
authors.affiliation: Condensed Matter and Thermal Physics, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: N J
authors.initials: NJ
authors.lastname: Curro
authors.forename: P C
authors.initials: PC
authors.lastname: Hammel
authors.forename: B J
authors.initials: BJ
authors.lastname: Suh
authors.forename: M
authors.initials: M
authors.lastname: Hücker
authors.forename: B
authors.initials: B
authors.lastname: Büchner
authors.forename: U
authors.initials: U
authors.lastname: Ammerahl
authors.forename: A
authors.initials: A
authors.lastname: Revcolevschi