Solitons in Polyacetylene Produced and Probed by Positive Muons
Abstract
Positive muons were injected into both trans- and cis-(CH)x as well as (CD)x. A marked difference was found in the field dependence of the muon spin-relaxation functions between cis- and trans-polyacetylene. A quantitative explanation was obtained by considering the unpaired electron produced by a muon: It is localized at the nearby carbons in cis-polyacetylene forming a radical state; on the other hand, in trans-polyacetylene, it becomes highly mobile and takes a one-dimensional solitonlike motion as clearly indicated by the inverse-root field dependence found for the relaxation rates.
- Publication:
-
Physical Review Letters
- Pub Date:
- October 1984
- DOI:
- 10.1103/PhysRevLett.53.1763
- Bibcode:
- 1984PhRvL..53.1763N
- Keywords:
-
- Muons;
- Polyacetylene;
- Solitary Waves;
- Spin-Lattice Relaxation;
- Thin Films;
- Isomers;
- Particle Production;
- Relaxation Time;
- Solid State Physics;
- Solid-State Physics;
- 76.90.+d;
- 61.40.Km;
- 76.80.+y;
- Other topics in magnetic resonances and relaxations;
- Mossbauer effect;
- other gamma-ray spectroscopy