Tuning electronic and magnetic properties of single-layer PN phases by point defects

Benam Z. H., Arkin H., Akturk E.

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, cilt.125, ss.80-89, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 125
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1016/j.jpcs.2018.10.006
  • Dergi Adı: JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.80-89
  • Anahtar Kelimeler: Blue and black phases of phosphorus nitrogene, Point defected geometries, Electronic properties, Density functional theory, LATTICE THERMAL-CONDUCTIVITY, ARSENIC-PHOSPHORUS, DIRECT BANDGAP, MONOLAYER, BLACK, SEMICONDUCTORS, MOBILITY, ADATOMS, SHEETS, RANGE
  • Ankara Üniversitesi Adresli: Evet

Özet

Based on first-principles density functional calculations, we investigate how electronic and magnetic properties of single-layer phases of phosphorus nitrogene (PN) are tuned by point defects. We found that the band gaps of buckled and asymmetric washboard phases of PN decrease with the point defects. The asymmetric washboard phase of PN is found to be narrow band gap semiconductor through vacancy defects. Additionally, our results show that while bare phosphorus nitrogene phases are nonmagnetic semiconductor, they attain net magnetic moments upon decoration with vacancy defects. In this respect, we believe that functionalization of phase of PN with point defects can be utilized as spin valves.