1 research outputs found
Turning Nonmagnetic Two-Dimensional Molybdenum Disulfides into Room-Temperature Ferromagnets by the Synergistic Effect of Lattice Stretching and Charge Injection
Exploring two-dimensional (2D) room-temperature
magnetic materials
in the field of 2D spintronics remains a formidable challenge. The
vast array of nonmagnetic 2D materials provides abundant resources
for exploration, but the strategy to convert them into intrinsic room-temperature
magnets remains elusive. To address this challenge, we present a general
strategy based on surface halogenation for the transition from nonmagnetism
to intrinsic room-temperature ferromagnetism in 2D MoS2 based on first-principles calculations. The derived 2D halogenated
MoS2 are half-semimetals with a high Curie temperature
(TC) of 430–589 K and excellent
stability. In-depth mechanistic studies revealed that this marvelous
nonmagnetism-to-ferromagnetism transition originates from the modulation
of the splitting as well as the occupation of the Mo d orbitals by
the synergy of lattice stretching and charge injection induced by
the surface halogenation. This work establishes a promising route
for exploring 2D room-temperature magnetic materials from the abundant
pool of 2D nonmagnetic counterparts