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We explore possibilities of stabilizing a skyrmion (SkX) phase in thefrustrated antiferromagnetic (AF) Heisenberg model with DMI on a triangularlattice at ambient conditions. We show that by stacking multiple AF layers andcoupling them with strong ferromagnetic (F) interaction the SkX phase stabilitytemperature window can be extended by several times. The transition temperatureincrease is supported by the increasing number of layers and interlayerinteraction and thus room-temperature SkX phase could be achievable by propertailoring of the multilayer structure. Further, we demonstrate that in thesandwich heterostructure, obtained by inserting a stiff F layer in between twoAF layers, the required external magnetic field can be completely replaced bythe effective field imposed by the F layer. Thus, one can design aheterostructure with the SkX phase stabilized at relatively high temperaturesand zero field - the environment favorable for technological applications.

Towards skyrmion crystal stabilization in the antiferromagnetic triangular lattice at ambient conditions