%0 Journal Article
%A Paulus, M. C.
%A Paulus, A.
%A Schleker, Peter Philipp Maria
%A Jakes, P.
%A Eichel, R.-A.
%A Heitjans, P.
%A Granwehr, J.
%T Experimental evidence for the relaxation coupling of all longitudinal 7Li magnetization orders in the superionic conductor Li10GeP2S12
%J Journal of magnetic resonance
%V 303
%@ 1090-7807
%C Amsterdam [u.a.]
%I Elsevier
%M FZJ-2019-02751
%P 57 - 66
%D 2019
%X This contribution addresses the experimental proof of the relaxation coupling of the 7Li (I = 3/2) longitudinal magnetization orders in the solid-state electrolyte Li10GeP2S12 (LGPS). This effect was theoretically described by Korb and Petit in 1988 but has not yet been shown experimentally. In a 2D-T1/spin-alignment echo (SAE) experiment, the inverse Laplace transformation of the spectral component over two time dimensions revealed the asymmetric course of the spin-lattice relaxation following from the coupling of all longitudinal orders. These observations were supported by Multi-quantum-filter experiments and by simulations of the 2D-T1/SAE experiment with a lithium spin system. Since the asymmetric relaxation effects are directly dependent on the velocities and degrees of freedom of ion motion they could be used especially in fast Li-ion conductors as a separation tool for environments with different mobility processes.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:31004985
%U <Go to ISI:>//WOS:000468146800007
%R 10.1016/j.jmr.2019.04.006
%U https://juser.fz-juelich.de/record/862435