Journal
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
Volume 134, Issue -, Pages 324-332Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpcs.2019.05.036
Keywords
Transition metal dihalides; Monolayers; DFT; Hubbard correction; Band structure
Funding
- Ministry of Education and Science of the Russian Federation, Russia [16.1455.2017/PCh]
- Russian Foundation for Basic Research (RFBR), Russia [16-32-60003 mol_a_dk]
- Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science [18-43-243011]
- RFBR [16-32-60003 mol_a_dk]
- Foundation for Assistance to Small Innovative Enterprises (FASIE), Russia [0033639]
- National Research Foundation of Republic of Korea [NRF-2017R1A2B4004440]
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Electronic structure and magnetic properties of the family of first-row transition metal dihalides (TMHal(2), TM = V, Cr, Mn, Fe, Co, Ni; H = Br, I) monolayers were studied by means of density functional theory. Strong electron correlations were taken into account by implementing Hubbard U correction in a simplified scheme proposed by Dudarev et al. (U-eff). U-eff correction essentially affects electronic structure of TMHal(2) widening the band gap and witnessing their highly spin-polarized nature. Two different ligand orientations namely, H and T configurations of monolayers were considered. Unlike others, FeHal(2) monolayers tend to form H structure when U-eff correction is included.
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