title: Room temperature organic magnets derived from sp3functionalized graphene.
abstract: Materials based on metallic elements that have d orbitals and exhibit room temperature magnetism have been known for centuries and applied in a huge range of technologies. Development of room temperature carbon magnets containing exclusively sp orbitals is viewed as great challenge in chemistry, physics, spintronics and materials science. Here we describe a series of room temperature organic magnets prepared by a simple and controllable route based on the substitution of fluorine atoms in fluorographene with hydroxyl groups. Depending on the chemical composition (an F/OH ratio) and sp3coverage, these new graphene derivatives show room temperature antiferromagnetic ordering, which has never been observed for any sp-based materials. Such 2D magnets undergo a transition to a ferromagnetic state at low temperatures, showing an extraordinarily high magnetic moment. The developed theoretical model addresses the origin of the room temperature magnetism in terms of sp2-conjugated diradical motifs embedded in an sp3matrix and superexchange interactions via -OH functionalization.
authors.affiliation: Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, Slechtitelu 27, Olomouc 783 71, Czech Republic.
authors.forename: Jiří
authors.initials: J
authors.lastname: Tuček
authors.affiliation: Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, Slechtitelu 27, Olomouc 783 71, Czech Republic.
authors.forename: Kateřina
authors.initials: K
authors.lastname: Holá
authors.affiliation: Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, Slechtitelu 27, Olomouc 783 71, Czech Republic.|Physics Department, University of Ioannina, Ioannina 45110, Greece.
authors.forename: Athanasios B
authors.initials: AB
authors.lastname: Bourlinos
authors.affiliation: Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, Slechtitelu 27, Olomouc 783 71, Czech Republic.
authors.forename: Piotr
authors.initials: P
authors.lastname: Błoński
authors.affiliation: Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, Slechtitelu 27, Olomouc 783 71, Czech Republic.
authors.forename: Aristides
authors.initials: A
authors.lastname: Bakandritsos
authors.affiliation: Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, Slechtitelu 27, Olomouc 783 71, Czech Republic.
authors.forename: Juri
authors.initials: J
authors.lastname: Ugolotti
authors.affiliation: Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, Slechtitelu 27, Olomouc 783 71, Czech Republic.
authors.forename: Matúš
authors.initials: M
authors.lastname: Dubecký
authors.affiliation: Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, Slechtitelu 27, Olomouc 783 71, Czech Republic.
authors.forename: František
authors.initials: F
authors.lastname: Karlický
authors.affiliation: Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, Slechtitelu 27, Olomouc 783 71, Czech Republic.
authors.forename: Václav
authors.initials: V
authors.lastname: Ranc
authors.affiliation: Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, Slechtitelu 27, Olomouc 783 71, Czech Republic.
authors.forename: Klára
authors.initials: K
authors.lastname: Čépe
authors.affiliation: Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, Slechtitelu 27, Olomouc 783 71, Czech Republic.
authors.forename: Michal
authors.identifier: 0000-0002-1066-5677
authors.initials: M
authors.lastname: Otyepka
authors.affiliation: Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, Slechtitelu 27, Olomouc 783 71, Czech Republic.
authors.forename: Radek
authors.initials: R
authors.lastname: Zbořil