Realizing altermagnetism in two-dimensional metal–organic framework semiconductors with electric-field-controlled anisotropic spin current

Ground state altermagnetism in two-dimensional metal–organic framework semiconductors M(pyz) 2 (M = Ca and Sr, pyz = pyrazine) protected by 2 4/ 1 m 1 m 2 m spin point group, together with topological properties and in-plane anisotropic spin current.