Friedel-like oscillations from interstitial Iron in superconducting Fe1+yTe0.62Se0.38

V. Thampy; J. Kang; J. A. Rodriguez-Rivera; W. Bao; A. T. Savici; J. Hu; T. J. Liu; B. Qian; D. Fobes; Z. Q. Mao; C. B. Fu; W. C. Chen; Q. Ye; R. W. Erwin; T. R. Gentile; Z. Tesanovic; C. Broholm

doi:10.1103/PhysRevLett.108.107002

Friedel-like oscillations from interstitial Iron in superconducting Fe_1+yTe_0.62Se_0.38

V. Thampy, J. Kang, J. A. Rodriguez-Rivera, W. Bao, A. T. Savici, J. Hu, T. J. Liu, B. Qian, D. Fobes, Z. Q. Mao, C. B. Fu, W. C. Chen, Q. Ye, R. W. Erwin, T. R. Gentile, Z. Tesanovic, C. Broholm

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

53 Citations (Scopus)

Abstract

Using polarized and unpolarized neutron scattering, we show that interstitial Fe in superconducting Fe _1+y Te _1-x Se _x induces a magnetic Friedel-like oscillation that diffracts at Q=(120) and involves >50 neighboring Fe sites. The interstitial >2μ_B moment is surrounded by compensating ferromagnetic four-spin clusters that may seed double stripe ordering in Fe_1+y Te. A semimetallic five-band model with (½ ½) Fermi surface nesting and fourfold symmetric superexchange between interstitial Fe and two in-plane nearest neighbors largely accounts for the observed diffraction.

Original language	English
Article number	107002
Journal	Physical Review Letters
Volume	108
Issue number	10
Online published	7 Mar 2012
DOIs	https://doi.org/10.1103/PhysRevLett.108.107002
Publication status	Published - 9 Mar 2012
Externally published	Yes

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Thampy, V., Kang, J., Rodriguez-Rivera, J. A., Bao, W., Savici, A. T., Hu, J., Liu, T. J., Qian, B., Fobes, D., Mao, Z. Q., Fu, C. B., Chen, W. C., Ye, Q., Erwin, R. W., Gentile, T. R., Tesanovic, Z., & Broholm, C. (2012). Friedel-like oscillations from interstitial Iron in superconducting Fe_1+yTe_0.62Se_0.38. Physical Review Letters, 108(10), Article 107002. https://doi.org/10.1103/PhysRevLett.108.107002

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title = "Friedel-like oscillations from interstitial Iron in superconducting Fe1+yTe0.62Se0.38",

abstract = "Using polarized and unpolarized neutron scattering, we show that interstitial Fe in superconducting Fe 1+y Te 1-x Se x induces a magnetic Friedel-like oscillation that diffracts at Q=(120) and involves >50 neighboring Fe sites. The interstitial >2μB moment is surrounded by compensating ferromagnetic four-spin clusters that may seed double stripe ordering in Fe1+y Te. A semimetallic five-band model with (½ ½) Fermi surface nesting and fourfold symmetric superexchange between interstitial Fe and two in-plane nearest neighbors largely accounts for the observed diffraction. ",

author = "V. Thampy and J. Kang and Rodriguez-Rivera, {J. A.} and W. Bao and Savici, {A. T.} and J. Hu and Liu, {T. J.} and B. Qian and D. Fobes and Mao, {Z. Q.} and Fu, {C. B.} and Chen, {W. C.} and Q. Ye and Erwin, {R. W.} and Gentile, {T. R.} and Z. Tesanovic and C. Broholm",

year = "2012",

month = mar,

day = "9",

doi = "10.1103/PhysRevLett.108.107002",

language = "English",

volume = "108",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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}

Thampy, V, Kang, J, Rodriguez-Rivera, JA, Bao, W, Savici, AT, Hu, J, Liu, TJ, Qian, B, Fobes, D, Mao, ZQ, Fu, CB, Chen, WC, Ye, Q, Erwin, RW, Gentile, TR, Tesanovic, Z & Broholm, C 2012, 'Friedel-like oscillations from interstitial Iron in superconducting Fe_1+yTe_0.62Se_0.38', Physical Review Letters, vol. 108, no. 10, 107002. https://doi.org/10.1103/PhysRevLett.108.107002

TY - JOUR

T1 - Friedel-like oscillations from interstitial Iron in superconducting Fe1+yTe0.62Se0.38

AU - Thampy, V.

AU - Kang, J.

AU - Rodriguez-Rivera, J. A.

AU - Bao, W.

AU - Savici, A. T.

AU - Hu, J.

AU - Liu, T. J.

AU - Qian, B.

AU - Fobes, D.

AU - Mao, Z. Q.

AU - Fu, C. B.

AU - Chen, W. C.

AU - Ye, Q.

AU - Erwin, R. W.

AU - Gentile, T. R.

AU - Tesanovic, Z.

AU - Broholm, C.

PY - 2012/3/9

Y1 - 2012/3/9

N2 - Using polarized and unpolarized neutron scattering, we show that interstitial Fe in superconducting Fe 1+y Te 1-x Se x induces a magnetic Friedel-like oscillation that diffracts at Q=(120) and involves >50 neighboring Fe sites. The interstitial >2μB moment is surrounded by compensating ferromagnetic four-spin clusters that may seed double stripe ordering in Fe1+y Te. A semimetallic five-band model with (½ ½) Fermi surface nesting and fourfold symmetric superexchange between interstitial Fe and two in-plane nearest neighbors largely accounts for the observed diffraction.

AB - Using polarized and unpolarized neutron scattering, we show that interstitial Fe in superconducting Fe 1+y Te 1-x Se x induces a magnetic Friedel-like oscillation that diffracts at Q=(120) and involves >50 neighboring Fe sites. The interstitial >2μB moment is surrounded by compensating ferromagnetic four-spin clusters that may seed double stripe ordering in Fe1+y Te. A semimetallic five-band model with (½ ½) Fermi surface nesting and fourfold symmetric superexchange between interstitial Fe and two in-plane nearest neighbors largely accounts for the observed diffraction.

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U2 - 10.1103/PhysRevLett.108.107002

DO - 10.1103/PhysRevLett.108.107002

M3 - RGC 21 - Publication in refereed journal

SN - 0031-9007

VL - 108

JO - Physical Review Letters

JF - Physical Review Letters

IS - 10

M1 - 107002

ER -