Tunable (δπ, δπ)-Type Antiferromagnetic Order in α-Fe(Te,Se) superconductors

Wei Bao; Y. Qiu; Q. Huang; M. A. Green; P. Zajdel; M. R. Fitzsimmons; M. Zhernenkov; S. Chang; Minghu Fang; B. Qian; E. K. Vehstedt; Jinhu Yang; H. M. Pham; L. Spinu; Z. Q. Mao

doi:10.1103/PhysRevLett.102.247001

Tunable (δπ, δπ)-Type Antiferromagnetic Order in α-Fe(Te,Se) superconductors

Wei Bao^*, Y. Qiu, Q. Huang, M. A. Green, P. Zajdel, M. R. Fitzsimmons, M. Zhernenkov, S. Chang, Minghu Fang, B. Qian, E. K. Vehstedt, Jinhu Yang, H. M. Pham, L. Spinu, Z. Q. Mao

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

622 Citations (Scopus)

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 Fe_1+yTe in this powder and single-crystal neutron diffraction study. The new antiferromagnetic order survives as a short-range one even in the highest T_C sample. An alternative to the prevailing nesting Fermi surface mechanism is required to understand the latest family of ferrous superconductors.

Original language	English
Article number	247001
Journal	Physical Review Letters
Volume	102
Issue number	24
Online published	17 Jun 2009
DOIs	https://doi.org/10.1103/PhysRevLett.102.247001
Publication status	Published - 19 Jun 2009
Externally published	Yes

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Bao, W., Qiu, Y., Huang, Q., Green, M. A., Zajdel, P., Fitzsimmons, M. R., Zhernenkov, M., Chang, S., Fang, M., Qian, B., Vehstedt, E. K., Yang, J., Pham, H. M., Spinu, L., & Mao, Z. Q. (2009). Tunable (δπ, δπ)-Type Antiferromagnetic Order in α-Fe(Te,Se) superconductors. Physical Review Letters, 102(24), Article 247001. https://doi.org/10.1103/PhysRevLett.102.247001

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title = "Tunable (δπ, δπ)-Type Antiferromagnetic Order in α-Fe(Te,Se) superconductors",

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.",

author = "Wei Bao and Y. Qiu and Q. Huang and Green, {M. A.} and P. Zajdel and Fitzsimmons, {M. R.} and M. Zhernenkov and S. Chang and Minghu Fang and B. Qian and Vehstedt, {E. K.} and Jinhu Yang and Pham, {H. M.} and L. Spinu and Mao, {Z. Q.}",

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doi = "10.1103/PhysRevLett.102.247001",

language = "English",

volume = "102",

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T1 - Tunable (δπ, δπ)-Type Antiferromagnetic Order in α-Fe(Te,Se) superconductors

AU - Bao, Wei

AU - Qiu, Y.

AU - Huang, Q.

AU - Green, M. A.

AU - Zajdel, P.

AU - Fitzsimmons, M. R.

AU - Zhernenkov, M.

AU - Chang, S.

AU - Fang, Minghu

AU - Qian, B.

AU - Vehstedt, E. K.

AU - Yang, Jinhu

AU - Pham, H. M.

AU - Spinu, L.

AU - Mao, Z. Q.

PY - 2009/6/19

Y1 - 2009/6/19

N2 - 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.

AB - 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.

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U2 - 10.1103/PhysRevLett.102.247001

DO - 10.1103/PhysRevLett.102.247001

M3 - RGC 21 - Publication in refereed journal

SN - 0031-9007

VL - 102

JO - Physical Review Letters

JF - Physical Review Letters

IS - 24

M1 - 247001

ER -

Tunable (δπ, δπ)-Type Antiferromagnetic Order in α-Fe(Te,Se) superconductors

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Tunable (δπ, δπ)-Type Antiferromagnetic Order in α-Fe(Te,Se) superconductors

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