期刊
PHYSICAL REVIEW B
卷 95, 期 21, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.95.214201
关键词
-
资金
- Slovenian Research Agency [P1-0044]
- National Science Centre, Poland [2016/23/B/ST3/00647]
We show that electron-magnon interaction delocalizes the particle in a system with strong charge disorder. The analysis is based on results obtained for a single hole in the one-dimensional t - J model. Unless there exists a mechanism that localizes spin excitations, the charge carrier remains delocalized even for a very strong charge disorder and shows subdiffusive motion up to the longest accessible times. Moreover, upon inspection of the propagation times between neighboring sites as well as a careful finite-size scaling, we conjecture that the anomalous subdiffusive transport may be transient and should eventually evolve into a normal diffusive motion.
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