English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Higgs mode and its decay in a two-dimensional antiferromagnet

Jain, A., Krautloher, M., Porras, J., Ryu, G. H., Chen, D. P., Abernathy, D. L., et al. (2017). Higgs mode and its decay in a two-dimensional antiferromagnet. Nature Physics, 13(7), 633-637. doi:10.1038/NPHYS4077.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-AF5D-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-AF60-C
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Jain, A.1, Author
Krautloher, M.1, Author
Porras, J.1, Author
Ryu, G. H.2, Author              
Chen, D. P.1, Author
Abernathy, D. L.1, Author
Park, J. T.1, Author
Ivanov, A.1, Author
Chaloupka, J.1, Author
Khaliullin, G.1, Author
Keimer, B.1, Author
Kim, B. J.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              

Content

show
hide
Free keywords: -
 Abstract: Condensed-matter analogues of the Higgs boson in particle physics allow insights into its behaviour in different symmetries and dimensionalities(1). Evidence for the Higgs mode has been reported in a number of different settings, including ultracold atomic gases(2), disordered superconductors(3), and dimerized quantum magnets(4). However, decay processes of the Higgsmode(which are eminently important in particlephysics) have not yet been studied in condensed matter due to the lack of a suitable material system coupled to a direct experimental probe. A quantitative understanding of these processes is particularly important for low-dimensional systems, where the Higgs mode decays rapidly and has remained elusive to most experimental probes. Here, we discover and study the Higgs mode in a two-dimensional antiferromagnet using spin-polarized inelastic neutron scattering. Our spin-wave spectra of Ca2RuO4 directly reveal a well-defined, dispersive Higgs mode, which quickly decays into transverse Goldstone modes at the antiferromagnetic ordering wavevector. Through a complete mapping of the transverse modes in the reciprocal space, we uniquely specify the minimal model Hamiltonian and describe the decay process. We thus establish a novel condensed-matter platform for research on the dynamics of the Higgs mode.

Details

show
hide
Language(s): eng - English
 Dates: 2017-03-272017-03-27
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000404629900008
DOI: 10.1038/NPHYS4077
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Nature Physics
  Other : Nat. Phys.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: London : Nature Pub. Group
Pages: - Volume / Issue: 13 (7) Sequence Number: - Start / End Page: 633 - 637 Identifier: ISSN: 1745-2473
CoNE: /journals/resource/1000000000025850