Mobility of Ion Carriers in Piezoelectric Li2B4O7 Crystals
| Autor: | V. V. Grebenev, N. I. Sorokin, Yu. V. Pisarevskii, V. A. Lomonov |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Solid-state physics Analytical chemistry Lattice (group) chemistry.chemical_element Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Dielectric spectroscopy Crystal chemistry Vacancy defect 0103 physical sciences Ionic conductivity Lithium 010306 general physics Single crystal |
| Zdroj: | Physics of the Solid State. 62:436-439 |
| ISSN: | 1090-6460 1063-7834 |
| DOI: | 10.1134/s1063783420030233 |
| Popis: | Impedance measurements of a Li2B4O7 single crystal with Ag electrodes have been performed in the frequency range of 1–3 × 107 Hz at room temperature. A Li2B4O7 crystal (sp. gr. I41cd, Z = 8) has been oriented along the c crystallographic axis. Contributions from the crystal bulk and the crystal/electrode interface are distinguished from the impedance hodograph of the Ag|Li2B4O7|Ag system. The structural mechanism of lithium-ion transport in Li2B4O7 crystals is discussed. Through conduction σdc = 2.3 × 10–9 S/cm, carrier (vacancy $$V_{{{\text{Li}}}}^{ - }$$) mobility μmob = 6 × 10–10 cm2/(s V), and their concentration nmob = 2.4 × 1019 cm–3 (0.14% on the amount of lithium in the lattice) are calculated based on the electrical and structural data. |
| Databáze: | OpenAIRE |
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