Exploring soft magnetism in amorphous carbon synthesized from biomass

Fahmi Astuti, Vera Laviara Maghfirohtuzzoimah, Novita Sari, Deril Ristiani, Retno Asih, Malik Anjelh Baqiya, Takayuki Kawamata, Takashi Noji, Hidetaka Sato, Masatsune Kato, Dita Puspita Sari, Isao Watanabe, Darminto