Electronic chirality in the metallic ferromagnet Fe1/3TaS2

Authors

S. Fan, The University of Tennessee, Knoxville
I. Manuel, University of North Florida
Amal Al-Wahish, The University of Tennessee, Knoxville
K. R. O'Neal, The University of Tennessee, Knoxville
K. A. Smith, The University of Tennessee, Knoxville
C. J. Won, Pohang University of Science and Technology
J. W. Kim, Rutgers Center for Emergent Materials
S. W. Cheong, Pohang University of Science and Technology
J. T. Haraldsen, University of North FloridaFollow
J. L. Musfeldt, The University of Tennessee, Knoxville

Document Type

Article

Publication Date

11-13-2017

Abstract

We bring together optical spectroscopy and first-principles calculations to reveal the electronic properties of the chiral ferromagnet Fe1/3TaS2. Signatures of chirality are superimposed upon a complex free-carrier response that emanates from both Ta and Fe bands. These include a honeycomb charge density pattern in the Fe layer and a hole → electron pocket crossover at the K point, low-energy excitations between spin split bands that cross the Fermi surface, and clustered rather than well-separated on-site and charge-transfer excitations. These findings advance the understanding of intercalation and symmetry breaking on the fundamental excitations in metallic chalcogenides.

Publication Title

Physical Review B

Volume

96

Issue

20

Digital Object Identifier (DOI)

10.1103/PhysRevB.96.205119

ISSN

24699950

E-ISSN

24699969

Citation Information

Fan, Manuel, I., al-Wahish, A., O’Neal, K. R., Smith, K. A., Won, C. J., Kim, J. W., Cheong, S.-W., Haraldsen, J. T., & Musfeldt, J. L. (2017). Electronic chirality in the metallic ferromagnet Fe1/3TaS2. Physical Review. B, 96(20). https://doi.org/10.1103/PhysRevB.96.205119