Journal article

### Quasiparticle Breakdown and Spin Hamiltonian of the Frustrated Quantum Pyrochlore $Yb_{2}Ti_{2}O_{7}$ in a Magnetic Field

Abstract:

The frustrated pyrochlore magnet $Yb_{2}Ti_{2}O_{7}$ has the remarkable property that it orders magnetically but has no propagating magnons over wide regions of the Brillouin zone. Here we use inelastic neutron scattering to follow how the spectrum evolves in cubic-axis magnetic fields. At high fields we observe, in addition to dispersive magnons, a two-magnon continuum, which grows in intensity upon reducing the field and overlaps with the one-magnon states at intermediate fields leading to ...

Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

### Access Document

Files:
• (pdf, 7.9MB)
Publisher copy:
10.1103/physrevlett.119.057203

### Authors

More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Condensed Matter Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Condensed Matter Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Condensed Matter Physics
Role:
Author
University of Oxford More from this funder
Natural Sciences and Engineering Research Council of Canada More from this funder
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review Letters Journal website
Volume:
119
Issue:
5
Pages:
057203
Publication date:
2017-08-01
Acceptance date:
2017-06-02
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Pubs id:
pubs:687147
URN:
uri:3dc24e81-d7b3-48c0-9fcd-24788d1dd6da
UUID:
uuid:3dc24e81-d7b3-48c0-9fcd-24788d1dd6da
Local pid:
pubs:687147
Paper number:
5
Language:
English
Keywords: