title: Switchable long-range double layer force observed in a protic ionic liquid.
abstract: A repulsive double layer force has been measured for ethylammonium nitrate (EAN) at 373 K and 393 K, which is absent at lower temperatures. This temperature-tuneable change in behaviour is the opposite of recent observations which challenge traditional views of ionicity. This finding thus widens the debate about the very nature of ionic liquids.
authors.affiliation: Surface and Corrosion Science, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden. mark@kth.se.
authors.forename: N
authors.identifier: 0000-0003-2773-3573
authors.initials: N
authors.lastname: Hjalmarsson
authors.affiliation: Priority Research Centre for Advanced Fluids and Interfaces, The University of Newcastle, Callaghan, NSW 2308, Australia.
authors.forename: R
authors.identifier: 0000-0001-8781-7854
authors.initials: R
authors.lastname: Atkin
authors.affiliation: Surface and Corrosion Science, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden. mark@kth.se and Chemistry, Materials and Surfaces, SP Technical Research Institute Sweden, SE-11428 Stockholm, Sweden.
authors.forename: M W
authors.initials: MW
authors.lastname: Rutland