A first-principles study of magnetic properties of Zn0.94Mg0.01Mn0.050

Duru I., Özuğurlu E., Arda L.

Materials Research Express, cilt.6, sa.12, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 6 Sayı: 12
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1088/2053-1591/ab63f6
  • Dergi Adı: Materials Research Express
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Directory of Open Access Journals, Civil Engineering Abstracts
  • Anahtar Kelimeler: Mg/Mn-doped ZnO, first-principles study, density functional theory, GGA plus PBE, Monte Carlo methods, room temperature ferromagnetism, ROOM-TEMPERATURE FERROMAGNETISM, P-TYPE ZNO, ELECTRONIC-STRUCTURE, OPTICAL-PROPERTIES, ELECTRICAL-PROPERTIES, EXCHANGE INTERACTIONS, ZINC-OXIDE, BAND-GAP, NANOPARTICLES, MN
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

©2020 IOP Publishing Ltd.The structural and magnetic properties ofMg/Mn-doped ZnO were investigated by the firstprinciples study and Monte Carlo methods (MCs). Applying magnetic force theorem (MFT) and using Kohn-Sham orbitals in the GGA-PBE scheme, the exchange coupling parameters (J) were calculated to figure out the magnetic interactions between atomic sites. Mn-Mg volume clustered (C1) ferromagnetic (FM) state was preferred; herewith, the calculated magnetic moment ofMnwas 4.19μB andMghas the highest moment value when clustered withMnions. NearestMnions interacted antiferromagnetic (AFM) despite the increasing distance lead them to be in FM. However,AFM/FM wasoriginated from the p-d hybridization, superexchange interaction and direct exchange between distantMnions. In addition, the Curie temperature (Tc) was calculated as 311K using averaged magnetization and magnetic susceptibility via MC.