Deuteron NMR investigations of glass and phase transitions in (KI)1-x(ND4I)x mixed crystals

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dc.contributor.authorBöhmer, Roland
dc.contributor.authorWinterlich, M.
dc.contributor.authorTitze, A.
dc.contributor.authorHinze, G.
dc.date.accessioned2008-06-13T11:27:48Z
dc.date.available2008-06-13T11:27:48Z
dc.date.issued1998
dc.description.abstractPowdered potassium ammonium iodide mixed crystals with ammonium concentrations of 20% and 70% have been studied using deuteron NMR techniques. For the less doped sample the deuteron line starts to broaden and the spin-lattice relaxation time T1 becomes nonexponential below about 20 K. These observations indicate the breakdown of ergodicity and the onset of orientational glass freezing. At the lowest temperatures T1 reaches a plateau value. For the 70% sample a relatively abrupt onset of two-phase behavior at T<35 K is inferred from measurements of the spin-spin and spin-lattice relaxation times. These observations are taken to indicate an order-disorder transition to a crystalline phase which exhibits dynamically distinguishable lattice sites.en
dc.identifier.citationWinterlich, M.; Titze, A.; Hinze, G.; Böhmer, R.: Deuteron NMR investigations of glass and phase transitions in (KI)1-x(ND4I)x mixed crystals. In: Physical Review B Jg. 57(1998), 14158-14163, 10.1103/PhysRevB.57.14158.de
dc.identifier.doi10.1103/PhysRevB.57.14158
dc.identifier.urihttp://hdl.handle.net/2003/25567
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-2764
dc.identifier.urlhttp://dx.doi.org/10.1103/PhysRevB.57.14158
dc.language.isoende
dc.publisherThe American Physical Societyen
dc.rights©1998 The American Physical Societyen
dc.subject.ddc530
dc.titleDeuteron NMR investigations of glass and phase transitions in (KI)1-x(ND4I)x mixed crystalsen
dc.typeTextde
dc.type.publicationtypearticlede
dcterms.accessRightsrestricted

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