Neutron scattering study of spin dynamics in superconducting (Tl,Rb)2Fe4Se5

Songxue Chi; Feng Ye; Wei Bao; Minghu Fang; H. D. Wang; C. H. Dong; A. T. Savici; G. E. Granroth; M. B. Stone; R. S. Fishman

doi:10.1103/PhysRevB.87.100501

Author(s)

Songxue Chi
Feng Ye
Minghu Fang
H. D. Wang
C. H. Dong
A. T. Savici
G. E. Granroth
M. B. Stone
R. S. Fishman

Detail(s)

Original language	English
Article number	100501
Journal / Publication	Physical Review B - Condensed Matter and Materials Physics
Volume	87
Issue number	10
Publication status	Published - 1 Mar 2013
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1103/PhysRevB.87.100501 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84874918791&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(6a9b5a79-ddf6-471e-ad10-824dafe5a7fc).html

Abstract

We observed in superconducting (Tl,Rb)₂Fe₄Se₅ spin-wave branches that span an energy range from 6.5 to 209 meV. Spin dynamics are successfully described by a Heisenberg localized spin model whose dominant in-plane interactions include only the nearest (J ₁ and J ₁′) and next nearest neighbor (J ₂ and J ₂′) exchange terms within and between the tetramer spin blocks, respectively. These experimentally determined exchange constants would crucially constrain the theoretical viewpoints on magnetism and superconductivity in the Fe-based materials.

Citation Format(s)

[ RIS ] [ BibTeX ]

Neutron scattering study of spin dynamics in superconducting (Tl,Rb)₂Fe₄Se₅. / Chi, Songxue; Ye, Feng; Bao, Wei et al.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 87, No. 10, 100501, 01.03.2013.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Chi, S, Ye, F, Bao, W, Fang, M, Wang, HD, Dong, CH, Savici, AT, Granroth, GE, Stone, MB & Fishman, RS 2013, 'Neutron scattering study of spin dynamics in superconducting (Tl,Rb)₂Fe₄Se₅', Physical Review B - Condensed Matter and Materials Physics, vol. 87, no. 10, 100501. https://doi.org/10.1103/PhysRevB.87.100501

Chi, S., Ye, F., Bao, W., Fang, M., Wang, H. D., Dong, C. H., Savici, A. T., Granroth, G. E., Stone, M. B., & Fishman, R. S. (2013). Neutron scattering study of spin dynamics in superconducting (Tl,Rb)₂Fe₄Se₅. Physical Review B - Condensed Matter and Materials Physics, 87(10), [100501]. https://doi.org/10.1103/PhysRevB.87.100501

Chi S, Ye F, Bao W, Fang M, Wang HD, Dong CH et al. Neutron scattering study of spin dynamics in superconducting (Tl,Rb)₂Fe₄Se₅. Physical Review B - Condensed Matter and Materials Physics. 2013 Mar 1;87(10):100501. doi: 10.1103/PhysRevB.87.100501

Chi, Songxue ; Ye, Feng ; Bao, Wei et al. / Neutron scattering study of spin dynamics in superconducting (Tl,Rb)₂Fe₄Se₅. In: Physical Review B - Condensed Matter and Materials Physics. 2013 ; Vol. 87, No. 10.