_applied sciences_  
_Article_  
Tuning Magnetic and Semiconducting Properties of Cr-Doped CaTiO\({}_{3}\) Perovskites for Advanced Spintronic Applications  
[PERSON] 1, [PERSON] 1,*, [PERSON] 2,3, [PERSON] 4,* and [PERSON] 2,3(c)  
[PERSON], C.  
and magnetic moments, which are essential for tailoring material properties to specific applications. [PERSON] et al. [7] examined the electronic and optical behavior of lanthanum-doped CaTiO\({}_{3}\). Their findings showed that doping significantly affects the material's band structure and optical properties, further illustrating the broad impact of doping on perovskite materials. [PERSON] [8] explored the half-metallic ferromagnetism and transport properties of zinc chalcogenides, which are relevant for understanding similar effects in Cr-doped perovskites. [PERSON] et al. [11] used first-principles calculations to study the electronic, structural, optical, thermoelectric, and elastic properties of CeXO\({}_{3}\) (X = Ti, V, Cr) perovskites, revealing significant effects of doping on these properties. [PERSON] et al. [12] investigated the electronic structure and high magnetic properties of (Cr, Co)-codoped 4H-SiC using first-principles calculations. This study revealed high magnetic moments and the potential for spintronic applications, emphasizing the role of co-doping in enhancing material properties. [PERSON] et al. [13] examined the effect of Cr substitution on the structure and electrical properties of BiFeO\({}_{3}\) ceramics, finding significant changes in resistivity and dielectric properties with Cr doping. [PERSON] et al. [14] focused on the structural, electronic, and magnetic properties of double perovskite Pb\({}_{2}\)CrMO\({}_{6}\) (M = Mo, W, Re) using a first-principles investigation, highlighting the potential of the materials for spintronics due to their high Curie temperatures and magnetic properties. Further studies have explored the role of Cr doping in various materials. [PERSON] et al. [15] investigated the physical properties of XRh\({}_{3}\) inverse perovskites from first principles, showing how transition metal doping can modify electronic and magnetic behaviors. [PERSON] et al. [16] conducted high-pressure studies on the electronic and mechanical properties of FeBO\({}_{3}\) ceramics doped with Ti, Mn, and Cr, revealing changes in band structure and magnetic properties under different pressure conditions. In 2018, [PERSON] et al. [17] used first principles to study ferromagnetism in transition-metal-doped perovskites, emphasizing the role of dopants in enhancing magnetic properties. In 2022, [PERSON] [9] investigated the impact of 3d transition metals on praseodymium perovskites, highlighting the changes in electronic and magnetic properties with different dopants. Moreover, in 2021, [PERSON] [18] studied the structural and electrical properties of YMnO\({}_{3}\), focusing on the effects of Mn doping. In 2016, [PERSON] et al. [19] performed an ab initio study on the structural, elastic, electronic, and optical properties of double perovskite oxides Sr\({}_{2}\)AlXO\({}_{6}\) (X = Ta, Nb, V). Their research predicted a direct bandgap for Sr\({}_{2}\)AlXO\({}_{6}\) (X = Ta, Nb) and an indirect bandgap for Sr\({}_{2}\)AlVO\({}_{6}\), showcasing how the electronic properties of double perovskites can be tuned through compositional changes. Recently, in 2024, [PERSON] et al. [3] conducted first-principles investigations and Monte Carlo simulations of Ti- and Cr-doped perovskites, providing detailed insights into the effects of doping on electronic and magnetic properties. This study underscores the importance of combining theoretical methods to achieve a comprehensive understanding of material behavior under various conditions. Several other studies [20; 21; 22; 23] have explored the structural, thermal, elastic, electronic, thermodynamic, and magnetic properties of doped perovskites.