Home
page
Other articles
in this issue
|
Hyper-Rayleigh Scattering Characterization of the Movement
of Lithium Ions in Li2B4O7 Crystals
1Vdovin A.V., 1Moiseyenko V.N., 2Burak
Ya.V.
1Physical Department, Dnipropetrovsk
National University, 13 Naukova Str., UA-49050, Dnipropetrovsk, Ukraine
2Institute of Physical Optics, 23 Dragomanov
Str., UA-79005 L’viv, Ukraine
download full version
The integral intensity of hyper-Rayleigh scattering from the bulk of
nominally pure ionic conducting Li2B4O7 crystals is studied as a function
of temperature in the range where a break in the temperature dependence
of ionic conductivity expressed in the coordinates ln (s33T)
= f (1/T) is observed. Characteristics of jump-diffusive movement of lithium
ions are determined. The movement activation energy for the temperatures
T> 400 K is estimated from the temperature dependences of hyper-Reyleigh
scattering intensity. Its value Eam = 0.46 eV is close to that
obtained from the measurements of temperature dependence of the ionic conductivity.
Key words: hyper-Rayleigh light scattering, ionic conductivity,
movement activation energy
PACS: 78.35+c
doi 10.3116/16091833/4/1/38/2003 |
|
References
1. Maeda M, Tachi H, Honda K, Suzuki I, 1994. Jpn J. Appl. Phys. 33:
1965-1969.
doi:10.1143/JJAP.33.1965
http://dx.doi.org/10.1143/JJAP.33.1965
2. Aliev AE, Burak YaV, Lyseyko IT, 1990. Izv. AN. Neorg. Mater. 26:
1991-1993.
3. Vogt H, 1990. Phys. Rev. B 41: 1184-1193
doi:10.1103/PhysRevB.41.1184
http://dx.doi.org/10.1103/PhysRevB.41.1184
4. Button DP, Mason LS, Muller HL, Uhlmann DR, 1983. Solid State Ionics
9&10: 585-592.
5. Physics of Superionic Conductors /M.B. Salamon, ed./ Topics Current
Phys., vol.15, Springer, Berlin – Heidelberg – New York, 1979.
6. Light scattering in solids III. Recent results /Edited by M. Cardona
and G. Güntherodt/ Springer- Verlag Berlin-Heidelberg-New York, 1982.
7. Dieteriech W, Fulde P, Peschel I, 1980. Adv. Phys. 29: 527.
doi:10.1080/00018738000101406
http://dx.doi.org/10.1080/00018738000101406 |