Slater ice rules and H-bond dynamics in KDP-type systems

We report on the first observation of the dynamics of correlated hydrogen switching among the six Slater D2PO4 configurations, induced by unpaired D3PO4 and DPO4 Takagi group diffusion in a deuteron glass Rb0.5(ND4)0.5D2PO4. The results obtained by two-dimensional (2D) 31P exchange NMR prove the val...

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Veröffentlicht in:Physical review letters 2002-05, Vol.88 (19), p.195501-195501, Article 195501
Hauptverfasser: Kind, Raymond, Cereghetti, Paola Maria, Jeitziner, Christian Anton, Zalar, Bostjan, Dolinsek, Janez, Blinc, Robert
Format: Artikel
Sprache:eng
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Zusammenfassung:We report on the first observation of the dynamics of correlated hydrogen switching among the six Slater D2PO4 configurations, induced by unpaired D3PO4 and DPO4 Takagi group diffusion in a deuteron glass Rb0.5(ND4)0.5D2PO4. The results obtained by two-dimensional (2D) 31P exchange NMR prove the validity of the Slater-Takagi ice rules and allow for the direct determination of the correlation time for the unpaired Takagi group visits to a given D2PO4 group.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.88.195501