journal article·2022-08-23

Ferromagnetic Cobalt Disulfide: A CVD Pathway Toward High-Quality and Phase-Pure Thin Films

Jan-Lucas Wree, Jean-Pierre Glauber, David Zanders, Detlef Rogalla, Malte Becher, Matthew B. E. Griffiths, Andreas Ostendorf, Seán T. Barry, Andreas Ney, Anjana Devi

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Abstract

Pyrite-type cobalt disulfide (CoS2), which is one among other stable cobalt sulfide phases, exhibits interesting electronic and magnetic properties. Herein, we demonstrate a tailored metalorganic chemical vapor deposition (MOCVD) pathway for the growth of high-quality ferromagnetic CoS2 thin films. The influence of CVD process parameters on growth and quality of the films was investigated by complementary analyses. Superconducting quantum interference device (SQUID) measurements confirmed the existence of pure CoS2 with a magnetic moment of 0.85 μB and a Curie temperature of 128(5) K. Our findings could pave the way for large-area CoS2 to be used for different technological applications.
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Research context

OpenAlex topics: ZnO doping and properties · Electronic and Structural Properties of Oxides · Copper-based nanomaterials and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Inorganic Materials Chemistry, Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany

Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6

RUBION, Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany

Chair of Applied Laser Technologies, Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany

Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Altenberger Strasse 69, Linz 4040, Austria

Funding

Deutscher Akademischer Austauschdienst · Fonds der Chemischen Industrie · Stiftung der Deutschen Wirtschaft

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