Spintronic Properties in Complex Perovskites: A Concordance Between Experiments and Ab-Initio Calculations

J. ROA-ROJAS; C.E. DELUQUE TORO; A.V. GIL REBAZA; X.A. VELÁSQUEZ MOYA; D.A. LANDÍNEZ TÉLLEZ

Research Topics in Bioactivity, Environment and Energy

Springer

Año: 2022; p. 183 - 207

Complex perovskite-type compounds constitute one of the most exciting families of materials due to the wide range of applications such as anode materials for solid oxide fuel cells, highly active catalysts in electrochemical energy conversion reactions, substrates for high-efficiency solar cells, piezoelectric or dielectric sensors, magnetoelectric and magnetoresistive devices, magnetic and spintronic semiconductors with uses in dynamic random access memories (DRAM) or non-ferroelectric random access memories (NVFRAM), hard disk read–write heads for high capacity storage of information in magnetic media and devices for electron current polarization, magnetic sensors, among others. In the present chapter we will focus on the study of the structural, magnetic, ferroelectric, semiconducting and thermophysical properties of complex perovskites with general formula A2BB´O6 where A are alkaline earth elements, rare earths or metals of large ionic radius and B and B’ are some transition metal elements. For this purpose, we present an exhaustive theoretical–experimental study of these compounds, reporting responses in measurements with different experimental techniques, correlated to ab-initio calculations in the framework of the Density Functional Theory and thermodynamic properties by means of Debye´s quasi-harmonic model. The obtained results reveal the applicability of various complex perovskites in the spintronics industry.