resumo
By introducing a symmetry-reduction design strategy in adamantane derivatives, overcoming the inherent high symmetry of globular molecules that typically hinders long-range electrical ordering, we report a metal-free ferroelectric 2-adamantylammonium bromide (2-ADAB) with a high Curie temperature of 383 K and robust polarization switching.
palavras-chave
CRYSTALS
categoria
Chemistry
autores
Xu, WJ; Alikin, D; Fang, ZL; Romanyuk, K; Verissimo, L; Zelenovskii, P; Zhang, WX; Kholkin, A; Rocha, J
nossos autores
Andrei Kholkin
Investigador Jubilado
Denis Alikin
Investigador Auxiliar
João Rocha
Prof. Catedrático
Konstantin Nikolaevich Romanyuk
Investigador Júnior
Luís Veríssimo
Estudante de doutoramento
Pavel Zelenovskii
Investigador
Wei-Jian Xu
Investigador JúniorGrupos
G1 - Materiais Porosos e Nanossistemas
G2 - Materiais Fotónicos, Eletrónicos e Magnéticos
G3 - Materiais Eletroquímicos, Interfaces e Revestimentos
Projectos
CICECO - Aveiro Institute of Materials (UIDB/50011/2020)
CICECO - Aveiro Institute of Materials (UIDP/50011/2020)
Associated Laboratory CICECO-Aveiro Institute of Materials (LA/P/0006/2020)
agradecimentos
This work was supported by NSFC (22488101), Fundamental Research Funds for the Central Universities (23lgzy001). This work was also developed within the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020, UIDP/50011/2020 & LA/P/0006/2020, financed by national funds through the FCT/MEC. We acknowledge Dr Alexander Tkach and Prof. Paula M. Vilarinho for their assistance with the dielectric measurements. L. V. thanks FCT UI/BD/151050/2021. AK wishes to acknowledge the support of the HORIZON-WIDERA-2023-TALENTS-01 program within the project "Low-dimensional ferroelectrics for advanced electronic and biomedical devices"(FeLow-D) (Grant agreement number 101186499). DA acknowledges individual support by the 2023.09305.CEECIND/CP2840/CT0020 through contract (doi: 10.54499/2023.09305.CEECIND/CP2840/CT0020) through national funds provided by FCT-Fundacao para a Ciencia e a Tecnologia.