Berlin 2024 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 32: Spin Phenomena in Semiconductors

HL 32.5: Vortrag

Mittwoch, 20. März 2024, 16:00–16:15, EW 015

Magnetic transparent conductors for spintronics — •Pino D'Amico¹, Alessandra Catellani¹, Alice Ruini², Stefano Curtarolo³, Marco Fornari⁴, Marco Buongiorno Nardelli⁵, and Arrigo Calzolari¹ — ¹Istituto Nanoscienze CNR-NANO-S3, I-4115 Modena, Italy — ²Dipartimento FIM Universitá di Modena e Reggio Emilia, I-41125 Modena, Italy — ³Department of Materials Science and Engineering, Duke University, Durham, NC 27708, USA — ⁴Department of Physics, Central Michigan University, Mt. Pleasant, MI 48859 — ⁵Department of Physics, University of North Texas, Denton, TX 76203, USA

Transparent Conductors (TCs) exhibit optical transparency and electron conductivity, and are essential for many opto-electronic and photo-voltaic devices. The most common TCs are electron-doped oxides, which have few limitations when transition metals are used as dopants. Non-oxides TCs have the potential of extending the class of materials to the magnetic realm, bypass technological bottlenecks, and bring TCs to the field of spintronics. In this contribution we propose new functional materials that combine transparency and conductivity with magnetic spin polarization that can be used for spintronic applications, such as spin filters. By using high-throughput first-principles techniques, we identified a large number of potential TCs, including non-oxides materials. Our results indicate that proper doping with transition metals introduces a finite magnetization that can provide spin filtering up to 90% in the electrical conductivity, still maintaining a transparency greater than 90%.

Keywords: Transparent conductors; Magnetic materials; High-throughput simulations; DFT; Spintronics