6533b833fe1ef96bd129c1f7
RESEARCH PRODUCT
The glass transition in (KI)0.5(ND4I)0.5 mixed crystals as studied by deuteron spin-lattice relaxation
Roland BöhmerF. FujaraGerald Hinzesubject
chemistry.chemical_classificationCondensed matter physicsSpin–lattice relaxationResonanceGeneral ChemistryCondensed Matter Physics530Exponential functionMagnetizationNuclear magnetic resonanceDeuteriumchemistryMaterials ChemistryGlass transitionInorganic compoundOrientational glassdescription
Abstract Nuclear spin resonance has been used to study the deuteron magnetization recovery in (KI)0.5(ND4I)0.5 mixed crystals. At high temperatures the spin-lattice-relaxation is exponential. For T ⪅ 45 K deviations from this simple behaviour occur, signalling the onset of spatial inhomogeneities due to the formation of an orientational glass. The results demonstrate that the transition of (KI)0.5(ND4I)0.5 into the glassy state is driven by the freezing of random bonds.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1993-04-01 |