Magnetic and electronic properties of h-BN nanosheets with nonmetal atoms adsorbed: a first-principles study
M. Luo+, H. H. Yin*, J. H. Chu*
+Department of Physics, Shanghai Polytechnic University, 201209 Shanghai, P.R. China
*School of Electronics and Information, Nantong University, 226019 Nantong, P.R. China
Abstract
Magnetic properties of the h-BN monolayer with nonmetal atoms are
studied by the first-principles methods. Different dopants (C, Cl, F, and O) and
doping sites are considered. Magnetic behavior is observed in the
two-dimensional (2D) BN system with C, Cl, and O atoms. On the other hand, the O
adsorbed system shows a more stable formed structure among above three magnetic
materials, we study the ferromagnetic (FM) interaction in 2D-BN system with two
O adatoms. Interestingly, as the increasing O-O distance, the interaction
between two O adatoms prefers to a long-range FM coupling. This phenomenon could
be well described by a simple Heisenberg model.