期刊
PHYSICAL REVIEW LETTERS
卷 110, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.086103
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资金
- U.S. Department of Energy [DE-FG02-85ER45222]
- EPSRC
- Engineering and Physical Sciences Research Council [EP/E004962/1] Funding Source: researchfish
- EPSRC [EP/E004962/1] Funding Source: UKRI
We report measurements of the acoustic and optical phason dispersion curves associated with the lattice of partial dislocations on the reconstructed (111) surface of gold. Our measurements of these low energy (<0.5 meV) weakly dispersive modes have been enabled by the very high resolution of the novel helium spin-echo technique. The results presented here constitute the first measurement of the phason dispersion of misfit dislocations, and possibly of excitations associated with any type of crystalline dislocations. DOI: 10.1103/PhysRevLett.110.086103
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