Bi-collinear antiferromagnetic order in the tetragonal $α$-FeTe

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dc.creatorMa, Fengjie
dc.creatorJi, Wei
dc.creatorHu, Jiangping
dc.creatorLU, Zhong-Yi
dc.creatorXiang, Tao
dc.date2008-09-29
dc.date.accessioned2026-07-07T13:10:43Z
dc.date.available2026-07-07T13:10:43Z
dc.descriptionBy the first-principles electronic structure calculations, we find that the ground state of PbO-type tetragonal $α$-FeTe is in a bi-collinear antiferromagnetic state, in which the Fe local moments ($\sim2.5μ_B$) are ordered ferromagnetically along a diagonal direction and antiferromagnetically along the other diagonal direction on the Fe square lattice. This bi-collinear order results from the interplay among the nearest, next nearest, and next next nearest neighbor superexchange interactions $J_1$, $J_2$, and $J_3$, mediated by Te $5p$-band. In contrast, the ground state of $α$-FeSe is in the collinear antiferromagnetic order, similar as in LaFeAsO and BaFe$_2$As$_2$.
dc.description5 pages and 5 figures
dc.identifierhttps://arxiv.org/abs/0809.4732
dc.identifierhttp://arxiv.org/abs/0809.4732
dc.identifierPhys. Rev. Lett. 102, 177003 (2009)
dc.identifierdoi:10.1103/PhysRevLett.102.177003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/229080
dc.subjectMaterials Science
dc.subjectSuperconductivity
dc.titleBi-collinear antiferromagnetic order in the tetragonal $α$-FeTe
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