Discovery of magnetism arising from p orbitals, opened a new field in the area of magnetism. Binary ionic compounds such as CaN are among these novel magnetic systems, which exhibit half metallic property in the hypothetical zinc-blende and rock-salt structures, hence may be promising materials for Spintronic . After a brief review of p magnetism in these binary ionic compounds, we discuss the FPLAPW method implemented in the FLEUR code and used for this project. In this method crystal space is divided into three regio atomic spheres, interstitial and vacuum regions and the full potential is used in all regions. Then we discus basic and practical aspects of noncolinear magnetism including the required techniques for calculation of exchange parameters, magnon spectra, and Curie temperature. In the section three, we calculate the ground state properties of CaN and CaP in the rock-salt and zinc-blende structures. Using the energy curves in terms of volume, the structural properties of these alloys are extracted. It is seen that CaN in both rock-salt and zinc-blende structures exhibits half metallic ferromagnetism while CaP in the rock-salt structure is a nonmagnetic metal. In the section four, the magnon spectrum, exchange parameters, and Curie temperature of bulk CaN and CaP in the rock-salt and zinc-blende structures are calculated. In order to determine the Curie temperature of the systems, we use mean field (MFA) and random phase (RPA) approximations. It is predicted that CaN in the zinc-blende structure has a Curie temperature considerably higher than the room temperature. In the fifth section, we calculate the magnetic properties and magnon spectrum of CaN and CaP monolayers and CaN-CaP Superlattice in the rock-salt structure and compare the results with bulk properties.