Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1798284 | Journal of Magnetism and Magnetic Materials | 2016 | 6 Pages |
Abstract
A magneto-orbital coupling mechanism is proposed to account for the weak energy gap at the Fermi energy in the (Ï,0) ordered SDW state of a realistic three-orbital model for iron pnictides involving dxz, dyz, and dxy Fe orbitals. The orbital mixing terms between the dxy and dxz/dyz orbitals, which are important in reproducing the orbital composition of the elliptical electron pockets at (±Ï,0) and (0,±Ï), are shown to play a key role in the energy gap formation in the SDW state.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Sayandip Ghosh, Nimisha Raghuvanshi, Avinash Singh,