Structure of the incommensurate phase ofRb2ZnCl4as determined byCl35nuclear quadrupole resonance

Abstract

${}_{}{}^{35}{}_{}{}^{}\mathrm{Cl}$ nuclear quadrupole resonance "lines" in the incommensurate phase of ${\mathrm{Rb}}_2$Zn${\mathrm{Cl}}_4$ were assigned as singularities in the quasicontinuous spectrum due to the frozen-in displacements. The plane-wave model describes suitably the microscopic structure down to $T_c+10\mathrm{}$ K, when narrow solitons become dominant.