Prediction of monolayer FeP4 with intrinsic half-metal ferrimagnetism above room temperature

A Janus CrSSe monolayer with interesting ferromagnetism

“…Studies have shown that the higher the J value, the greater the T C value. 80 Therefore, as shown in Fig. 3b, the estimated T C is up to 790 K, which is much higher than room-temperature and those of most reported 2D Cr-based ferromagnets, such as CrI 3 (45 K), 3 Cr 2 Te 3 (280 K), 18 Cr 3 Se 4 (370 K), 22 and 1T-CrSSe (272 K).…”

Prediction of a two-dimensional high Curie temperature Weyl nodal line kagome semimetal

“…The MC simulation results based on the anisotropic Heisenberg model can estimate the T C of most experimentally validated 2D magnets. 71–75 Note that the MC simulations based on the Heisenberg model are applicable only to magnetic systems with high localized spin moments, such as magnetic semiconductors and insulators. For magnetic semimetals, their spins may be itinerant within a certain range, and thus the MC simulations can be used as a first-level estimate of the T C .…”

Ferromagnetism above room temperature in Janus Fe2X (X = S, Se) monolayers

“…5,16 In particular, TM-rich monolayers stabilized by quantum confinement effects are beneficial for the enhancement of local magnetic moment and magnetic coupling, which are the favorable factors for high-temperature ferromagnets. 17 Iron (Fe), as a representative magnetic TM element, also exhibits promising potential for 2D high-temperature magnetic materials, [18][19][20][21] especially for Fe-based chalcogenides. 22 In detail, the prepared tetragonal/hexagonal FeTe monolayer demonstrates antiferromagnetism/ferromagnetism with a T C ranging from 170 to 220 K. 23,24 Hexagonal FeS 2 , FeSe 2 , and FeTe 2 monolayers are predicted to have intrinsic ferromagnetism with outstanding stability.…”