title: Electrical magnetochiral anisotropy in a bulk chiral molecular conductor.
abstract: So far, no effect of chirality on the electrical properties of bulk chiral conductors has been observed. Introduction of chiral information in tetrathiafulvalene precursors represents a powerful strategy towards the preparation of crystalline materials in which the combination of chirality and conducting properties might allow the observation of the electrical magnetochiral anisotropy effect. Here we report the synthesis by electrocrystallization of both enantiomers of a bulk chiral organic conductor based on an enantiopure tetrathiafulvalene derivative. The enantiomeric salts crystallize in enantiomorphic hexagonal space groups. Single crystal resistivity measurements show metallic behaviour for the enantiopure salts down to 40 K, in agreement with band structure calculations. We describe here the first experimental evidence of electrical magnetochiral anisotropy in these crystals, confirming the chiral character of charge transport in our molecular materials.
authors.affiliation: 1] UMR 6200, CNRS, Laboratoire MOLTECH-Anjou, UFR Sciences, Université d'Angers, Bât. K, 2 Boulevard Lavoisier, 49045 Angers, France [2] UPR3228 CNRS/INSA/UJF/UPS, Laboratoire National des Champs Magnétiques Intenses, 31400 Toulouse and 38042 Grenoble, France.
authors.forename: Flavia
authors.initials: F
authors.lastname: Pop
authors.affiliation: Laboratoire de Physique des Solides, UMR 8502, Université Paris-Sud, Bât. 510, 91405 Orsay, France.
authors.forename: Pascale
authors.initials: P
authors.lastname: Auban-Senzier
authors.affiliation: Campus Universitari de Bellaterra, Institut de Ciència de Materials de Barcelona (CSIC), 08193 Cerdanyola del Vallès, Catalonia, Spain.
authors.forename: Enric
authors.initials: E
authors.lastname: Canadell
authors.affiliation: UPR3228 CNRS/INSA/UJF/UPS, Laboratoire National des Champs Magnétiques Intenses, 31400 Toulouse and 38042 Grenoble, France.
authors.forename: Geert L J A
authors.initials: GL
authors.lastname: Rikken
authors.affiliation: UMR 6200, CNRS, Laboratoire MOLTECH-Anjou, UFR Sciences, Université d'Angers, Bât. K, 2 Boulevard Lavoisier, 49045 Angers, France.
authors.forename: Narcis
authors.initials: N
authors.lastname: Avarvari