Quantum anomalous Hall and valley quantum anomalous Hall effects in two-dimensional <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mi>d</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math> orbital <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>X</mml:mi><mml:mi>Y</mml:mi></mml:mrow></mml:math> monolayers

We propose a new family of the d0 orbital XY (X = K, Rb, Cs; Y N, P, As, Sb, Bi) monolayers with abundant and novel topology valley properties. The KN, RbN, RbP, RbAs, CsP, CsAs, CsSb possess remarkable quantum anomalous Hall effect (QAHE). monolayer also exhibits extraordinary QAHE giant splitting. Moreover, topological properties can be effciently tuned by in-plane strain, owing to strain-induced band inversion between px;y pz orbitals. Our findings suggest that good candidates for promising applications in spintronics multifunctional topological-based devices.