A tetragonal phase Mn2B2 sheet: a stable room temperature ferromagnet with sizable magnetic anisotropy

Abdullahi Y. Z., DEMİR VATANSEVER Z., AKTÜRK E., AKINCI Ü., AKTÜRK O. Ü.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, cilt.22, sa.19, ss.10893-10899, 2020 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 22 Sayı: 19
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1039/d0cp00503g
  • Dergi Adı: PHYSICAL CHEMISTRY CHEMICAL PHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chimica, Communication Abstracts, EMBASE, INSPEC, MEDLINE
  • Sayfa Sayıları: ss.10893-10899
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Exploring the magnetic properties of two-dimensional (2D) metal boride (MBene) sheets for spin-based electronics is gaining importance for developing electronic devices. Through combined first-principles calculations and Monte Carlo simulations, we present a new tetragonal Mn2B2 (tetra-Mn2B2) sheet. The tetra-Mn2B2 sheet shows metallic ferromagnetism (2.65 mu(B) per Mn atom) with excellent stability. Moreover, it is demonstrated that the tetra-Mn2B2 sheet holds promise for experimental synthesis within an acceptable range from the results of stability tests of tetra-Mn2B2. We also find that the magnetic anisotropy (MAE) of the 2D tetra-Mn2B2 sheet is significantly increased under an electric field. The Curie temperature (T-C) of the tetra-Mn2B2 sheet is calculated as 406 K. This 2D tetra-Mn2B2 with a high Curie temperature can serve as a promising candidate for future magnetoelectronics applications.