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MA: Fachverband Magnetismus

MA 14: General Spintronics

MA 14.12: Vortrag

Montag, 16. März 2020, 18:00–18:15, HSZ 401

High-throughput screening for ferromagnetic intermetallics with giant anomalous Hall/Nernst conductivities — •Ilias Samathrakis, Teng Long, Harish Kumar Singh, and Hongbin Zhang — Theory of Magnetic Materials, TU Darmstadt, Darmstadt, Germany

Topological transport properties in magnetic materials, such as the anomalous Hall conductivity (AHC) and anomalous Nernst conductivity (ANC), are promising for future spintronic applications, as they are dissipationless. In this work, we performed first-principles calculations to evaluate the AHC and ANC in 1827 ferromagnetic compounds. This is achieved by using an in-house developed high-throughput scheme to construct the Wannier functions automatically. Our results signify AHC values larger than 2000 S/cm in several ferromagnetic compounds and giant ANC which can be further tuned to realize heat rectification. Detailed analysis on the symmetry and the electronic structure is performed in order to understand the origin of such abnormal AHC and ANC.