Structural and electrical characterizations of single tetragonal FeSe on Si substrate

(0 0 l)-Oriented FeSe thin films were successfully fabricated by metal organic chemical vapor deposition on Si substrate with large thermal mismatch. X-ray diffraction and X-ray photoelectron spectroscopy measurements indicate that the films are of single tetragonal phase FeSe. Hysteresis loop indicates that the FeSe structure is ferromagnetic at room temperature with coercive force of 260 Oe. The FeSe films show p-type conduction with carrier concentration of 10 21 cm −3, and the anomalous Hall effect was discussed.