  Magnetite epitaxial thin films have been prepared by pulsed laser deposition
at 340 C on MgO and Si substrates. One key result is that the thin film
properties are almost identical to the properties of bulk material. For 40 - 50
nm thick films, the saturation magnetization and conductivity are respectively
453 emu/cm^3 and 225 1/(Ohm cm) at room temperature. The Verwey transition is
at 117 K. The Hall effect indicates an electron concentration corresponding to
0.22 electrons per formula unit at room temperature. Normal and anomalous Hall
effect both have a negative sign.
