From (π,0) magnetic order to superconductivity with (π,π) magnetic resonance in Fe1.02 Te1-x Sex

T. J. Liu; J. Hu; B. Qian; D. Fobes; Z. Q. Mao; W. Bao; M. Reehuis; S. A.J. Kimber; K. ProkeŠ; S. Matas; D. N. Argyriou; A. Hiess; A. Rotaru; H. Pham; L. Spinu; Y. Qiu; V. Thampy; A. T. Savici; J. A. Rodriguez; C. Broholm

doi:10.1038/nmat2800

From (π,0) magnetic order to superconductivity with (π,π) magnetic resonance in Fe_1.02 Te_1-x Se_x

T. J. Liu, J. Hu, B. Qian, D. Fobes, Z. Q. Mao, W. Bao, M. Reehuis, S. A.J. Kimber, K. ProkeŠ, S. Matas, D. N. Argyriou, A. Hiess, A. Rotaru, H. Pham, L. Spinu, Y. Qiu, V. Thampy, A. T. Savici, J. A. Rodriguez, C. Broholm

Direct Geometry

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Abstract

The iron chalcogenide Fe 1+y (Te 1-x Se x) is structurally the simplest of the Fe-based superconductors. Although the Fermi surface is similar to iron pnictides, the parent compoundFe 1+y Te exhibits antiferromagnetic order with an in-plane magnetic wave vector (π,0) (ref. 6). This contrasts the pnictide parent compounds where the magnetic order has an in-plane magnetic wave vector (π,π) that connects hole and electron parts of the Fermi surface. Despite these differences, both the pnictide and chalcogenide Fe superconductors exhibit a superconducting spin resonance around (π,π) (ref. 9, 10, 11). A central question in this burgeoning field is therefore how (π,π) superconductivity can emerge from a (π,0) magnetic instability. Here, we report that the magnetic soft mode evolving from the (π,0)-type magnetic long-range order is associated with weak charge carrier localization. Bulk superconductivity occurs as magnetic correlations at (π,0) are suppressed and the mode at (π, π) becomes dominant for x>0.29. Our results suggest a common magnetic origin for superconductivity in iron chalcogenide and pnictide superconductors.

Original language	English
Pages (from-to)	716-720
Number of pages	5
Journal	Nature Materials
Volume	9
Issue number	9
DOIs	https://doi.org/10.1038/nmat2800
State	Published - Sep 2010

Funding

Funders	Funder number
Directorate for Mathematical and Physical Sciences	0454672, 0645305

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Liu, T. J., Hu, J., Qian, B., Fobes, D., Mao, Z. Q., Bao, W., Reehuis, M., Kimber, S. A. J., ProkeŠ, K., Matas, S., Argyriou, D. N., Hiess, A., Rotaru, A., Pham, H., Spinu, L., Qiu, Y., Thampy, V., Savici, A. T., Rodriguez, J. A., & Broholm, C. (2010). From (π,0) magnetic order to superconductivity with (π,π) magnetic resonance in Fe_1.02 Te_1-x Se_x. Nature Materials, 9(9), 716-720. https://doi.org/10.1038/nmat2800

@article{f0ce006c6bc4400c9430d37287ecf2a0,

title = "From (π,0) magnetic order to superconductivity with (π,π) magnetic resonance in Fe1.02 Te1-x Sex",

abstract = "The iron chalcogenide Fe 1+y (Te 1-x Se x) is structurally the simplest of the Fe-based superconductors. Although the Fermi surface is similar to iron pnictides, the parent compoundFe 1+y Te exhibits antiferromagnetic order with an in-plane magnetic wave vector (π,0) (ref. 6). This contrasts the pnictide parent compounds where the magnetic order has an in-plane magnetic wave vector (π,π) that connects hole and electron parts of the Fermi surface. Despite these differences, both the pnictide and chalcogenide Fe superconductors exhibit a superconducting spin resonance around (π,π) (ref. 9, 10, 11). A central question in this burgeoning field is therefore how (π,π) superconductivity can emerge from a (π,0) magnetic instability. Here, we report that the magnetic soft mode evolving from the (π,0)-type magnetic long-range order is associated with weak charge carrier localization. Bulk superconductivity occurs as magnetic correlations at (π,0) are suppressed and the mode at (π, π) becomes dominant for x>0.29. Our results suggest a common magnetic origin for superconductivity in iron chalcogenide and pnictide superconductors.",

author = "Liu, {T. J.} and J. Hu and B. Qian and D. Fobes and Mao, {Z. Q.} and W. Bao and M. Reehuis and Kimber, {S. A.J.} and K. Proke{\v S} and S. Matas and Argyriou, {D. N.} and A. Hiess and A. Rotaru and H. Pham and L. Spinu and Y. Qiu and V. Thampy and Savici, {A. T.} and Rodriguez, {J. A.} and C. Broholm",

year = "2010",

month = sep,

doi = "10.1038/nmat2800",

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pages = "716--720",

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Liu, TJ, Hu, J, Qian, B, Fobes, D, Mao, ZQ, Bao, W, Reehuis, M, Kimber, SAJ, ProkeŠ, K, Matas, S, Argyriou, DN, Hiess, A, Rotaru, A, Pham, H, Spinu, L, Qiu, Y, Thampy, V, Savici, AT, Rodriguez, JA & Broholm, C 2010, 'From (π,0) magnetic order to superconductivity with (π,π) magnetic resonance in Fe_1.02 Te_1-x Se_x', Nature Materials, vol. 9, no. 9, pp. 716-720. https://doi.org/10.1038/nmat2800

TY - JOUR

T1 - From (π,0) magnetic order to superconductivity with (π,π) magnetic resonance in Fe1.02 Te1-x Sex

AU - Liu, T. J.

AU - Hu, J.

AU - Qian, B.

AU - Fobes, D.

AU - Mao, Z. Q.

AU - Bao, W.

AU - Reehuis, M.

AU - Kimber, S. A.J.

AU - ProkeŠ, K.

AU - Matas, S.

AU - Argyriou, D. N.

AU - Hiess, A.

AU - Rotaru, A.

AU - Pham, H.

AU - Spinu, L.

AU - Qiu, Y.

AU - Thampy, V.

AU - Savici, A. T.

AU - Rodriguez, J. A.

AU - Broholm, C.

PY - 2010/9

Y1 - 2010/9

N2 - The iron chalcogenide Fe 1+y (Te 1-x Se x) is structurally the simplest of the Fe-based superconductors. Although the Fermi surface is similar to iron pnictides, the parent compoundFe 1+y Te exhibits antiferromagnetic order with an in-plane magnetic wave vector (π,0) (ref. 6). This contrasts the pnictide parent compounds where the magnetic order has an in-plane magnetic wave vector (π,π) that connects hole and electron parts of the Fermi surface. Despite these differences, both the pnictide and chalcogenide Fe superconductors exhibit a superconducting spin resonance around (π,π) (ref. 9, 10, 11). A central question in this burgeoning field is therefore how (π,π) superconductivity can emerge from a (π,0) magnetic instability. Here, we report that the magnetic soft mode evolving from the (π,0)-type magnetic long-range order is associated with weak charge carrier localization. Bulk superconductivity occurs as magnetic correlations at (π,0) are suppressed and the mode at (π, π) becomes dominant for x>0.29. Our results suggest a common magnetic origin for superconductivity in iron chalcogenide and pnictide superconductors.

AB - The iron chalcogenide Fe 1+y (Te 1-x Se x) is structurally the simplest of the Fe-based superconductors. Although the Fermi surface is similar to iron pnictides, the parent compoundFe 1+y Te exhibits antiferromagnetic order with an in-plane magnetic wave vector (π,0) (ref. 6). This contrasts the pnictide parent compounds where the magnetic order has an in-plane magnetic wave vector (π,π) that connects hole and electron parts of the Fermi surface. Despite these differences, both the pnictide and chalcogenide Fe superconductors exhibit a superconducting spin resonance around (π,π) (ref. 9, 10, 11). A central question in this burgeoning field is therefore how (π,π) superconductivity can emerge from a (π,0) magnetic instability. Here, we report that the magnetic soft mode evolving from the (π,0)-type magnetic long-range order is associated with weak charge carrier localization. Bulk superconductivity occurs as magnetic correlations at (π,0) are suppressed and the mode at (π, π) becomes dominant for x>0.29. Our results suggest a common magnetic origin for superconductivity in iron chalcogenide and pnictide superconductors.

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DO - 10.1038/nmat2800

M3 - Article

AN - SCOPUS:77956061616

SN - 1476-1122

VL - 9

SP - 716

EP - 720

JO - Nature Materials

JF - Nature Materials

IS - 9

ER -

From (π,0) magnetic order to superconductivity with (π,π) magnetic resonance in Fe_1.02 Te_1-x Se_x

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