Strain-induced magnetic phase transition, magnetic anisotropy switching and bilayer antiferromagnetic skyrmions in van der Waals magnet CrTe 2

Strain tunable critical temperature and magnetic easy axis switching between in-plane and off-plane by biaxial strain in monolayer CrTe 2 . A bilayer AFM skyrmion lattice is induced by a magnetic field of 6.9 T at 100 K.