Fabrication of transition metal (TM = Fe, Co) difluorides–carbon nanocomposite films by magnetron co-sputtered deposition of Fe/Co and Teflon targets

Autor: Kenta Nogawa, Yang Cao, Hiroshi Masumoto, Nobukiyo Kobayashi
Rok vydání: 2021
Předmět:
Zdroj: Applied Physics Express. 14:075502
ISSN: 1882-0786
1882-0778
DOI: 10.35848/1882-0786/ac07f0
Popis: We present a general synthesis of transition metal difluorides (TMF2)–carbon nanocomposite films by magnetron co-sputtering the Fe/Co and polytetrafluoroethylene (Teflon) targets. The composites consist of binary TMF2 (TM = Fe, Co) nanoparticles with a crystallite size of ∼8 nm immersed in a carbon matrix. The antiferromagnetic nature of TMF2 nanoparticles with the Néel temperature T N of 40 K (TM = Co) and 78 K (TM = Fe) is confirmed. The ability to create the sputter-deposited TMF2–carbon nanocomposites may not only allow for possible energy applications but also provide a platform for investigating the particulate disordered antiferromagnets.
Databáze: OpenAIRE