First-principles calculations of magnetic properties of germanene under strain. (3rd October 2019)

• Record Type: Journal Article
• Authors: Luo, Min; Xu, Yu-e
• Is Part Of: Ferroelectrics. Volume 550(2019)
• Page Start: 173
• Page End: 182
• Publication Date: 2019-10-03
• Subjects: Germanene -- DFT calculations -- nonmetal -- magnetism -- strain; Ferroelectricity -- Periodicals; Ferroelectric crystals -- Periodicals; 537
• DOI: 10.1080/00150193.2019.1652514
• Languages: English
• ISSNs: 0015-0193

Abstract

Abstract: Magnetic properties of germanene with five different nonmetal atoms have been analyzed and discussed by the DFT calculations. Magnetic moments could be induced by C, N, and O adatoms in the germanene. We further study the effect of strain on the magnetism in O-adsorbed germanene, and a tunable magnetism shows. The analysis of the PDOS shows that the p–p hybridization between O and Ge atoms is responsible for such magnetic behavior. Our results indicate that the magnetism induced by the O adatom is switchable depending on the strength of strain, which might show some potential applications in the nanoscale devices.