Abstract
We report 13 C NMR spectra of a quasi-one-dimensional quarter-filled organic material (TMTTF) 2 AsF 6 , which undergoes charge ordering (T CO = 102 K) and spin-Peierls phase transitions (T SP = 14 K). We found that the doubly split NMR lines originating from charge ordering again merge into one line at T SP . This shows redistribution of charge densities or suppression of charge ordering across the spin-Peierls transition.
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