Link between Magnetic and Dielectric Properties in Magnetite |
| Z. Švindrycha, b, A. Youssefb and Z. Janůa
aInstitute of Physics of the AS CR, v.v.i, Na Slovance 2, 182 21 Prague, Czech Republic bCharles University in Prague, Faculty of Mathematics and Physics, V Holešovičkách 2, 180 00 Prague, Czech Republic |
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| We have measured temperature dependence of magnetic and dielectric properties in high quality stoichiometric single-crystals of magnetite (Fe3O4). At low temperatures, below the Verwey transition, both ac susceptibility and ac permittivity reveal similar relaxation processes. We discuss these effects in connection with domain structure and variable range hopping mechanism of electrical conductivity. |
| DOI: 10.12693/APhysPolA.118.940 PACS numbers: 71.30.+h, 75.60.-d, 75.85.+t |