Electronic structure and x-ray magnetic circular dichroism in ferroelectric <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>CaMnTi</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math>

We study the electronic and magnetic properties of ferroelectric {\mathrm{CaMnTi}}_{2}{\mathrm{O}}_{6}within density functional theory using the generalized gradient approximation (GGA) with the consideration of strong Coulomb correlations (\mathrm{GGA}+U)in the framework of the fully relativistic spin-polarized Dirac linear muffin-tin orbital band structure method. The x-ray absorption spectra (XAS) and x-ray magnetic circular dichroism...