Open AccessSwitching Dielectric Constant Near Room Temperature in a Molecular Crystal
Author(s) -
Shao XiuDan,
Zhang Xi,
Shi Chao,
Yao YeFeng,
Zhang Wen
Publication year - 2015
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201500029
Subject(s) - dielectric , condensed matter physics , ionic bonding , dipole , spin crossover , materials science , chemical physics , phase transition , high κ dielectric , spin transition , chemistry , ion , optoelectronics , organic chemistry , physics
The organic salt bis(2‐chloroethyl)amine hydrochloride shows a sharp switching of its dielectric constant at 320 K. The switching property originates from the dynamic changes of the (2‐chloroethyl)ammonium cation between frozen and motional states, corresponding to a structural phase transition.