Abstract
Using a double-probe spreading resistance measurement technique combined with a layer-by-layer analysis, temperature dependences of electroconductivity of polycrystalline lithium pentaferrite (LPF), which is produced via a ceramic-production technological process, are investigated. It is shown that the electroconductivity activation energy of LPF is controlled by the height of grain-boundary potential barrier due to different degrees of grain boundary and grain bulk oxidation. A relationship is established between the value of the electroconductivity activation energy of LPF and the processes of its oxygen exchange with the surrounding medium during thermal annealing.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. P. Surzhikov, A. M. Pritulov, S. A. Ghyngazov, and E. N. Lisenko, Promising Materials [in Russian], No. 6, 90–94 (1999).
B. E. Levin, Yu. D. Tretiakov, and L. M. Tretyuk, Physico-Chemical Principles of Production of Ferrites, Their Properties and Application [in Russian], Moscow, Metallurgiya (1979).
L. P. Pavlov, Methods of Measuring Parameters of Semiconductor Materials [in Russian] Vyssh. Shkola., Moscow (1987).
P. B. Braun, Nature, 170, 1123–1124 (1952).
A. A. Vashman, Functional Inorganic Compounds [in Russian], Energoatomizdat (1996).
A. P. Surzhikov, V. V. Peshev, A. M. Pritulov, and S. A. Gyngazov, Russ. Phys. J., No. 5, 490 (1999).
Author information
Authors and Affiliations
Additional information
__________
Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 5, pp.48–51, May, 2006.
Rights and permissions
About this article
Cite this article
Surzhikov, A.P., Frangulyan, T.S., Ghyngazov, S.A. et al. Investigation of electroconductivity of lithium pentaferrite. Russ Phys J 49, 506–510 (2006). https://doi.org/10.1007/s11182-006-0133-6
Received:
Issue Date:
DOI: https://doi.org/10.1007/s11182-006-0133-6