Electronic structure, magnetic and optical properties of quaternary Fe2−x Co x MnAl Heusler alloys
Source abstract
Abstract
Full-potential linearized augmented plane-wave method is used to calculate electronic structure of L21-ordered Fe2MnAl Heusler alloy within WIEN2k code. Exchange correlation is treated using generalized gradient approximation which gives the nearest values to experimental results of lattice constant. On doping Co at Fe site in Fe2MnAl in the series Fe2−x Co x MnAl, nearly 100% spin polarization is realized for x = 0.5, 1 and 1.5 and half-metallic behavior is observed with band gap of ~0.5 eV in minority spin bands. Total magnetic moment increases linearly with increase in value of x and follows the Slater–Pauling curve. Trends of optical conductivity, real and imaginary parts of the dielectric function, reflectivity, energy loss, refractive index, absorption and extinction coefficient with increasing concentration of Co and with incident photon energy point to possible use in solar cell devices and as shielding materials for electromagnetic radiation extending from visible to far UV range.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Heusler alloys: electronic and magnetic properties · MXene and MAX Phase Materials · Advanced Welding Techniques Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (46)
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