dc.contributor.author | Badyal, Yaspal S. | eng |
dc.contributor.author | Bafile, Ubaldo | eng |
dc.contributor.author | Miyazaki, Kunimasa | eng |
dc.contributor.author | Schepper, Ignatz de | eng |
dc.contributor.author | Montfrooij, Wouter | eng |
dc.date.issued | 2003 | eng |
dc.description.abstract | We present inelastic neutron scattering measurements on liquid mercury at room temperature for wave numbers q in the range 0.3 <q<7.0Å-1. We find that the energy half width of the incoherent part of the dynamic structure factor S(q,E) is determined by a self-diffusion process. The half width of the coherent part of S(q,E) shows the characteristic behavior expected for a cage diffusion process. We also show that the response function at small wave numbers exhibits a quasielastic mode with a time scale characteristic of cage diffusion, however, its intensity is larger by an order of magnitude than what would be expected for cage diffusion. We speculate on a scenario in which the intensity of the cage diffusion mode at small wave numbers is amplified through a valence fluctuation mechanism. | eng |
dc.description.sponsorship | The experiments at ISIS were supported by the
Netherlands Organization for Scientific Research (NWO), and part of this work was supported by grants from the Japan Society for the Promotion of Science (JSPS). | eng |
dc.identifier.citation | Phys. Rev. E 68, 061208 (2003) [7 pages] | eng |
dc.identifier.issn | 1539-3755 | eng |
dc.identifier.uri | http://hdl.handle.net/10355/7211 | eng |
dc.language | English | eng |
dc.publisher | American Physical Society | eng |
dc.relation.ispartofcollection | University of Missouri--Columbia. College of Arts and Sciences. Department of Physics and Astronomy. Physics and Astronomy publications | eng |
dc.source.uri | http://pre.aps.org/pdf/PRE/v68/i6/e061208 | eng |
dc.subject | diffusion and thermal diffusion | eng |
dc.subject | transport processes | eng |
dc.subject | liquid metals and alloys | eng |
dc.subject | inelastic neutron scattering | eng |
dc.subject.lcsh | Liquid metals | eng |
dc.subject.lcsh | Neutrons -- Scattering | eng |
dc.subject.lcsh | Mercury | eng |
dc.title | Cage diffusion in liquid mercury | eng |
dc.type | Article | eng |