Orientation control and thermoelectric properties of FeSb2 films

Ye Sun (1) , Eryun Zhang (2, 3) , Simon Johnsen (1) , Michael Sillassen (2, 3) , Peijie Sun (4) , Frank Steglich (4) , Jørgen Bøttiger (3, 2) , Bo Brummerstedt Iversen (1)

1 Department of Chemistry and iNANO
2 iNANO - Interdisciplinary Nanoscience Center
3 Department of Physics and Astronomy [Aarhus]
4 CPfS - Max-Planck-Institut für Chemische Physik fester Stoffe

FeSb 2 has a high potential for technological applications due to its colossal thermoelectric power, giant carrier mobility and large magnetoresistance. Previously growth of <101>-textured FeSb 2 films on quartz (0001) substrates have been reported. Here magnetron sputtering is used to obtain <002>-textured FeSb 2 films by employing a pre-deposited FeSb 2 thin film layer as template. The in-plane thermoelectric properties of FeSb 2 films with different orientations were studied and compared. The anisotropy of FeSb 2 is shown to have an important effect on the transport properties of FeSb 2 films. Orientation control of the FeSb 2 films could be significant for their property optimization and thus highlight their application potential.

Mots clés: Physical Sciences

Domaines: Planète et Univers [physics]

Ye Sun, Eryun Zhang, Simon Johnsen, Michael Sillassen, Peijie Sun, et al.. Orientation control and thermoelectric properties of FeSb2 films. Journal of Physics D: Applied Physics, 2010, 43 (20), pp.205402. ⟨10.1088/0022-3727/43/20/205402⟩. ⟨hal-00569610⟩