Consequences of broken translational symmetry in FeSe x Te 1 - X

L. Moreschini, P. H. Lin, C. H. Lin, W. Ku, D. Innocenti, Y. J. Chang, A. L. Walter, K. S. Kim, V. Brouet, K. W. Yeh, M. K. Wu, E. Rotenberg, A. Bostwick, M. Grioni

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We investigate the consequences of broken translational symmetry in the superconductor FeSexTe1-x using angle-resolved photoemission spectroscopy. We find that the intensity does not follow the periodicity dictated by the crystal structure, owing to the form of the perturbing potential and the symmetries of the Fe d orbitals. Their interplay leads to substantial differences in the orbital character and spectral features observed at nominally equivalent locations in the reciprocal space. Such differences cannot be accounted for by the usual dipole matrix element effects and are due instead to the structure factor, which must be explicitly considered whenever more than one atom is present in the unit cell.

Original languageEnglish
Article number087602
JournalPhysical Review Letters
Volume112
Issue number8
DOIs
Publication statusPublished - 2014 Feb 25

Fingerprint

orbitals
symmetry
periodic variations
photoelectric emission
dipoles
crystal structure
matrices
cells
spectroscopy
atoms

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Moreschini, L., Lin, P. H., Lin, C. H., Ku, W., Innocenti, D., Chang, Y. J., ... Grioni, M. (2014). Consequences of broken translational symmetry in FeSe x Te 1 - X. Physical Review Letters, 112(8), [087602]. https://doi.org/10.1103/PhysRevLett.112.087602
Moreschini, L. ; Lin, P. H. ; Lin, C. H. ; Ku, W. ; Innocenti, D. ; Chang, Y. J. ; Walter, A. L. ; Kim, K. S. ; Brouet, V. ; Yeh, K. W. ; Wu, M. K. ; Rotenberg, E. ; Bostwick, A. ; Grioni, M. / Consequences of broken translational symmetry in FeSe x Te 1 - X. In: Physical Review Letters. 2014 ; Vol. 112, No. 8.
@article{aa1f2a82cd3d4557aa8a9b797d61f9b1,
title = "Consequences of broken translational symmetry in FeSe x Te 1 - X",
abstract = "We investigate the consequences of broken translational symmetry in the superconductor FeSexTe1-x using angle-resolved photoemission spectroscopy. We find that the intensity does not follow the periodicity dictated by the crystal structure, owing to the form of the perturbing potential and the symmetries of the Fe d orbitals. Their interplay leads to substantial differences in the orbital character and spectral features observed at nominally equivalent locations in the reciprocal space. Such differences cannot be accounted for by the usual dipole matrix element effects and are due instead to the structure factor, which must be explicitly considered whenever more than one atom is present in the unit cell.",
author = "L. Moreschini and Lin, {P. H.} and Lin, {C. H.} and W. Ku and D. Innocenti and Chang, {Y. J.} and Walter, {A. L.} and Kim, {K. S.} and V. Brouet and Yeh, {K. W.} and Wu, {M. K.} and E. Rotenberg and A. Bostwick and M. Grioni",
year = "2014",
month = "2",
day = "25",
doi = "10.1103/PhysRevLett.112.087602",
language = "English",
volume = "112",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "8",

}

Moreschini, L, Lin, PH, Lin, CH, Ku, W, Innocenti, D, Chang, YJ, Walter, AL, Kim, KS, Brouet, V, Yeh, KW, Wu, MK, Rotenberg, E, Bostwick, A & Grioni, M 2014, 'Consequences of broken translational symmetry in FeSe x Te 1 - X', Physical Review Letters, vol. 112, no. 8, 087602. https://doi.org/10.1103/PhysRevLett.112.087602

Consequences of broken translational symmetry in FeSe x Te 1 - X. / Moreschini, L.; Lin, P. H.; Lin, C. H.; Ku, W.; Innocenti, D.; Chang, Y. J.; Walter, A. L.; Kim, K. S.; Brouet, V.; Yeh, K. W.; Wu, M. K.; Rotenberg, E.; Bostwick, A.; Grioni, M.

In: Physical Review Letters, Vol. 112, No. 8, 087602, 25.02.2014.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Consequences of broken translational symmetry in FeSe x Te 1 - X

AU - Moreschini, L.

AU - Lin, P. H.

AU - Lin, C. H.

AU - Ku, W.

AU - Innocenti, D.

AU - Chang, Y. J.

AU - Walter, A. L.

AU - Kim, K. S.

AU - Brouet, V.

AU - Yeh, K. W.

AU - Wu, M. K.

AU - Rotenberg, E.

AU - Bostwick, A.

AU - Grioni, M.

PY - 2014/2/25

Y1 - 2014/2/25

N2 - We investigate the consequences of broken translational symmetry in the superconductor FeSexTe1-x using angle-resolved photoemission spectroscopy. We find that the intensity does not follow the periodicity dictated by the crystal structure, owing to the form of the perturbing potential and the symmetries of the Fe d orbitals. Their interplay leads to substantial differences in the orbital character and spectral features observed at nominally equivalent locations in the reciprocal space. Such differences cannot be accounted for by the usual dipole matrix element effects and are due instead to the structure factor, which must be explicitly considered whenever more than one atom is present in the unit cell.

AB - We investigate the consequences of broken translational symmetry in the superconductor FeSexTe1-x using angle-resolved photoemission spectroscopy. We find that the intensity does not follow the periodicity dictated by the crystal structure, owing to the form of the perturbing potential and the symmetries of the Fe d orbitals. Their interplay leads to substantial differences in the orbital character and spectral features observed at nominally equivalent locations in the reciprocal space. Such differences cannot be accounted for by the usual dipole matrix element effects and are due instead to the structure factor, which must be explicitly considered whenever more than one atom is present in the unit cell.

UR - http://www.scopus.com/inward/record.url?scp=84894667281&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84894667281&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.112.087602

DO - 10.1103/PhysRevLett.112.087602

M3 - Article

AN - SCOPUS:84894667281

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 8

M1 - 087602

ER -

Moreschini L, Lin PH, Lin CH, Ku W, Innocenti D, Chang YJ et al. Consequences of broken translational symmetry in FeSe x Te 1 - X. Physical Review Letters. 2014 Feb 25;112(8). 087602. https://doi.org/10.1103/PhysRevLett.112.087602