Orbital symmetry of Ba(Fe1-xCox)2As 2 superconductors probed with x-ray absorption spectroscopy

C. Parks Cheney; F. Bondino; T. A. Callcott; P. Vilmercati; D. Ederer; E. Magnano; M. Malvestuto; F. Parmigiani; A. S. Sefat; M. A. McGuire; R. Jin; B. C. Sales; D. Mandrus; D. J. Singh; J. W. Freeland; N. Mannella

doi:10.1103/PhysRevB.81.104518

Orbital symmetry of Ba(Fe_1-xCo_x)₂As ₂ superconductors probed with x-ray absorption spectroscopy

C. Parks Cheney, F. Bondino, T. A. Callcott, P. Vilmercati, D. Ederer, E. Magnano, M. Malvestuto, F. Parmigiani, A. S. Sefat, M. A. McGuire, R. Jin, B. C. Sales, D. Mandrus, D. J. Singh, J. W. Freeland, N. Mannella

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Abstract

The orbital symmetries of electron-doped iron-arsenide superconductors Ba(Fe_1-xCo_x)₂As₂ have been measured with x-ray absorption spectroscopy. The data reveal signatures of Fed electron itinerancy, weak electronic correlations, and a high degree of Fe-As hybridization related to the bonding topology of the Fe d_xz+yz states, which are found to contribute substantially at the Fermi level. The energies and detailed orbital character of Fe and As derived unoccupied s and d states are found to be in remarkably good agreement with the predictions of standard density-functional theory.

Original language	English
Article number	104518
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	81
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.81.104518
State	Published - Mar 18 2010

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Parks Cheney, C., Bondino, F., Callcott, T. A., Vilmercati, P., Ederer, D., Magnano, E., Malvestuto, M., Parmigiani, F., Sefat, A. S., McGuire, M. A., Jin, R., Sales, B. C., Mandrus, D., Singh, D. J., Freeland, J. W., & Mannella, N. (2010). Orbital symmetry of Ba(Fe_1-xCo_x)₂As ₂ superconductors probed with x-ray absorption spectroscopy. Physical Review B - Condensed Matter and Materials Physics, 81(10), Article 104518. https://doi.org/10.1103/PhysRevB.81.104518

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title = "Orbital symmetry of Ba(Fe1-xCox)2As 2 superconductors probed with x-ray absorption spectroscopy",

abstract = "The orbital symmetries of electron-doped iron-arsenide superconductors Ba(Fe1-xCox)2As2 have been measured with x-ray absorption spectroscopy. The data reveal signatures of Fed electron itinerancy, weak electronic correlations, and a high degree of Fe-As hybridization related to the bonding topology of the Fe dxz+yz states, which are found to contribute substantially at the Fermi level. The energies and detailed orbital character of Fe and As derived unoccupied s and d states are found to be in remarkably good agreement with the predictions of standard density-functional theory.",

author = "{Parks Cheney}, C. and F. Bondino and Callcott, {T. A.} and P. Vilmercati and D. Ederer and E. Magnano and M. Malvestuto and F. Parmigiani and Sefat, {A. S.} and McGuire, {M. A.} and R. Jin and Sales, {B. C.} and D. Mandrus and Singh, {D. J.} and Freeland, {J. W.} and N. Mannella",

year = "2010",

month = mar,

day = "18",

doi = "10.1103/PhysRevB.81.104518",

language = "English",

volume = "81",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

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Parks Cheney, C, Bondino, F, Callcott, TA, Vilmercati, P, Ederer, D, Magnano, E, Malvestuto, M, Parmigiani, F, Sefat, AS, McGuire, MA, Jin, R, Sales, BC, Mandrus, D, Singh, DJ, Freeland, JW & Mannella, N 2010, 'Orbital symmetry of Ba(Fe_1-xCo_x)₂As ₂ superconductors probed with x-ray absorption spectroscopy', Physical Review B - Condensed Matter and Materials Physics, vol. 81, no. 10, 104518. https://doi.org/10.1103/PhysRevB.81.104518

TY - JOUR

T1 - Orbital symmetry of Ba(Fe1-xCox)2As 2 superconductors probed with x-ray absorption spectroscopy

AU - Parks Cheney, C.

AU - Bondino, F.

AU - Callcott, T. A.

AU - Vilmercati, P.

AU - Ederer, D.

AU - Magnano, E.

AU - Malvestuto, M.

AU - Parmigiani, F.

AU - Sefat, A. S.

AU - McGuire, M. A.

AU - Jin, R.

AU - Sales, B. C.

AU - Mandrus, D.

AU - Singh, D. J.

AU - Freeland, J. W.

AU - Mannella, N.

PY - 2010/3/18

Y1 - 2010/3/18

N2 - The orbital symmetries of electron-doped iron-arsenide superconductors Ba(Fe1-xCox)2As2 have been measured with x-ray absorption spectroscopy. The data reveal signatures of Fed electron itinerancy, weak electronic correlations, and a high degree of Fe-As hybridization related to the bonding topology of the Fe dxz+yz states, which are found to contribute substantially at the Fermi level. The energies and detailed orbital character of Fe and As derived unoccupied s and d states are found to be in remarkably good agreement with the predictions of standard density-functional theory.

AB - The orbital symmetries of electron-doped iron-arsenide superconductors Ba(Fe1-xCox)2As2 have been measured with x-ray absorption spectroscopy. The data reveal signatures of Fed electron itinerancy, weak electronic correlations, and a high degree of Fe-As hybridization related to the bonding topology of the Fe dxz+yz states, which are found to contribute substantially at the Fermi level. The energies and detailed orbital character of Fe and As derived unoccupied s and d states are found to be in remarkably good agreement with the predictions of standard density-functional theory.

UR - http://www.scopus.com/inward/record.url?scp=77954946339&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.81.104518

DO - 10.1103/PhysRevB.81.104518

M3 - Article

AN - SCOPUS:77954946339

SN - 1098-0121

VL - 81

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 10

M1 - 104518

ER -

Orbital symmetry of Ba(Fe_1-xCo_x)₂As ₂ superconductors probed with x-ray absorption spectroscopy

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