QUASI-ELASTIC NEUTRON-SCATTERING STUDY OF PROTON DIFFUSION IN SRCE0.95YB0.05H0.02O2.985

Authors
HEMPELMANN R KARMONIK C MATZKE T CAPPADONIA M STIMMING U SPRINGER T ADAMS MA
Citation
R. Hempelmann et al., QUASI-ELASTIC NEUTRON-SCATTERING STUDY OF PROTON DIFFUSION IN SRCE0.95YB0.05H0.02O2.985, Solid state ionics, 77, 1995, pp. 152-156
Citations number
7
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical
Journal title
Solid state ionics → ACNP
ISSN journal
01672738
Volume
77
Year of publication
1995
Pages
152 - 156
Database
ISI
SICI code
0167-2738(1995)77:<152:QNSOPD>2.0.ZU;2-A
Abstract
By means of quasielastic neutron scattering (QENS) we have studied pro ton diffusion in SrCe0.95Yb0.05H0.02O2.985 on microscopic scales in sp ace and time. The diffusion process consists of a sequence of free dif fusion and trapping/escape events. The resulting diffusion coefficient agrees with the diffusion coefficient determined by impedance spectro scopy measurements which were performed on the same sample batch.