Mechanistic study of the effect of Ca–Sn co-doping on the microwave dielectric properties and magnetic properties of YIG

Dielectric and gyromagnetic structure modulations of Zn–Sn codoped yttrium–iron–garnet based on the density‐generalized functional theory and P–V–L bond theory

“…The P – V – L complex chemical bonding theory was applied to study the microwave dielectric properties of Ca–Zn codoped YIG; when Ca 2+ is added, the relative permittivity is highly correlated with the average ionicity of the bond. In addition, the theory calculation results can effectively explain the effect of doping on the dielectric properties of YIG 18 . The microwave magnetic and electrical properties of YIG are closely related to its electronic and crystal structures, and the first‐principle calculations based on molecular dynamics can help simulate the changes of electronic and crystal structures caused by doping ions, thus helping to study the mechanism of enhancing the microwave properties of the material 19 …”

“…In addition, the theory calculation results can effectively explain the effect of doping on the dielectric properties of YIG. 18 The microwave magnetic and electrical properties of YIG are closely related to its electronic and crystal structures, and the first-principle calculations based on molecular dynamics can help simulate the changes of electronic and crystal structures caused by doping ions, thus helping to study the mechanism of enhancing the microwave properties of the material. 19 To meet the demand for miniaturization of microwave devices, it becomes important to improve the dielectric constant of YIG and maintain low microwave dielectric and magnetic losses.…”