Tunable (δπ, δπ)-Type Antiferromagnetic Order in α-Fe(Te,Se) superconductors
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Article number | 247001 |
| Journal / Publication | Physical Review Letters |
| Volume | 102 |
| Issue number | 24 |
| Online published | 17 Jun 2009 |
| Publication status | Published - 19 Jun 2009 |
| Externally published | Yes |
Link(s)
Abstract
The new α-Fe(Te,Se) superconductors share the common iron building block and ferminology with the LaFeAsO and BaFe2As2 families of superconductors. In contrast with the predicted commensurate spin-density-wave order at the nesting wave vector (π, 0), a completely different magnetic order with a composition tunable propagation vector (δπ, δπ) was determined for the parent compound Fe1+yTe in this powder and single-crystal neutron diffraction study. The new antiferromagnetic order survives as a short-range one even in the highest TC sample. An alternative to the prevailing nesting Fermi surface mechanism is required to understand the latest family of ferrous superconductors.
Citation Format(s)
Tunable (δπ, δπ)-Type Antiferromagnetic Order in α-Fe(Te,Se) superconductors. / Bao, Wei; Qiu, Y.; Huang, Q. et al.
In: Physical Review Letters, Vol. 102, No. 24, 247001, 19.06.2009.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
