- Abstract:
- We demonstrate that quantum-critical spin dynamics can be probed in high magnetic fields using muon-spin relaxation (μ+SR). Our model system is the strong-leg spin ladder bis(2,3-dimethylpyridinium) tetrabromocuprate (DIMPY). In the gapless Tomonaga-Luttinger liquid phase we observe finite-temperature scaling of the μ+SR 1/T1 relaxation rate which allows us to determine the Luttinger parameter K. We discuss the benefits and limitations of local probes compared with inelastic neutron scattering.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
- Version:
- Accepted manuscript
- Files:
-
-
(pdf, 338.8KB)
-
- Publisher copy:
- 10.1103/PhysRevB.95.020402
-
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- Publisher:
- American Physical Society Publisher's website
- Journal:
- Physical Review B Journal website
- Volume:
- 95
- Issue:
- 2
- Publication date:
- 2017-01-05
- Acceptance date:
- 2016-12-12
- DOI:
- ISSN:
-
2469-9969 and 2469-9950
- Pubs id:
-
pubs:675518
- URN:
-
uri:00a7a2cb-ab40-4833-a2d3-f356460fb8c1
- UUID:
-
uuid:00a7a2cb-ab40-4833-a2d3-f356460fb8c1
- Local pid:
- pubs:675518
- Keywords:
- Copyright holder:
- American Physical Society
- Copyright date:
- 2017
- Notes:
- © 2017 American Physical Society
Journal article
Quantum-critical spin dynamics in a Tomonaga-Luttinger liquid studied with muon-spin relaxation
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