Surface species of the nematic mixture E7 obtained by electrochemical insertion of Li+ ions Mihaela Baibarac, Irina Zgura, Constantin Paul Ganea and Ligia Frunza Eur. Phys. J. E, 46 4 (2023) 26 Published online: 08 April 2023 DOI: 10.1140/epje/s10189-023-00280-z