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Communication Dans Un Congrès Année : 2019

Local structure and dynamics of an icosahedral quasicrystal and its 1/1 approximant from Solid-State NMR

Christophe Odin
Jean-Claude Ameline
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Bertrand Toudic

Résumé

In contrast to X-rays/Coherent neutron techniques that mainly measure space-time correlation functions of all atoms in the reciprocal space, solid-state NMR is a local probe that is very sensitive to short-ranged structural patterns and dynamics, with atomic selectivity. Moreover, it is recognized that both techniques are complementary to understand structure and dynamics at different time-scales. Both benefit from Large Scale Facilities (synchrotron, high field NMR, neutron reactors …) allowing unprecedented space-time resolution. In this presentation, we discuss how solid-state NMR experiments can shed light on structural organization, instabilities and dynamics in complex molecular systems. In particular, 45Sc solid state NMR experiments on the 1/1 approximant Zn6Sc and quasicrystal ZnScAg at different fields and temperatures are reported, and discussed in complementarity to available structural studies.
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Dates et versions

hal-02401720 , version 1 (10-12-2019)

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  • HAL Id : hal-02401720 , version 1

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Christophe Odin, Jean-Claude Ameline, An-Pang Tsai, Bertrand Toudic. Local structure and dynamics of an icosahedral quasicrystal and its 1/1 approximant from Solid-State NMR. Interdisciplinary Symposium for Quasicrystals and Strongly Correlated Electron Systems, Jun 2019, Sendai, Japan. ⟨hal-02401720⟩
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