Electronic structure of fully epitaxial Co2TiSn thin films

Meinert M, Schmalhorst J-M, Wulfmeier H, Reiss G, Arenholz E, Graf T, Felser C (2011)
Physical Review B 83(6): 064412.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
In this article we report on the properties of thin films of the full Heusler compound Co2TiSn prepared by DC magnetron co-sputtering. Fully epitaxial, stoichiometric films were obtained by deposition on MgO (001) substrates at substrate temperatures above 600{\deg}C. The films are well ordered in the L21 structure, and the Curie temperature exceeds slightly the bulk value. They show a significant, isotropic magnetoresistance and the resistivity becomes strongly anomalous in the paramagnetic state. The films are weakly ferrimagnetic, with nearly 1 \mu_B on the Co atoms, and a small antiparallel Ti moment, in agreement with theoretical expectations. From comparison of x-ray absorption spectra on the Co L3/L2 edges, including circular and linear magnetic dichroism, with ab initio calculations of the x-ray absorption and circular dichroism spectra we infer that the electronic structure of Co2TiSn has essentially non-localized character. Spectral features that have not been explained in detail before, are explained here in terms of the final state band structure.
Erscheinungsjahr
2011
Zeitschriftentitel
Physical Review B
Band
83
Ausgabe
6
Art.-Nr.
064412
ISSN
1098-0121
eISSN
1550-235X
Page URI
https://pub.uni-bielefeld.de/record/2003150

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Meinert M, Schmalhorst J-M, Wulfmeier H, et al. Electronic structure of fully epitaxial Co2TiSn thin films. Physical Review B. 2011;83(6): 064412.
Meinert, M., Schmalhorst, J. - M., Wulfmeier, H., Reiss, G., Arenholz, E., Graf, T., & Felser, C. (2011). Electronic structure of fully epitaxial Co2TiSn thin films. Physical Review B, 83(6), 064412. doi:10.1103/PhysRevB.83.064412
Meinert, M., Schmalhorst, J. - M., Wulfmeier, H., Reiss, G., Arenholz, E., Graf, T., and Felser, C. (2011). Electronic structure of fully epitaxial Co2TiSn thin films. Physical Review B 83:064412.
Meinert, M., et al., 2011. Electronic structure of fully epitaxial Co2TiSn thin films. Physical Review B, 83(6): 064412.
M. Meinert, et al., “Electronic structure of fully epitaxial Co2TiSn thin films”, Physical Review B, vol. 83, 2011, : 064412.
Meinert, M., Schmalhorst, J.-M., Wulfmeier, H., Reiss, G., Arenholz, E., Graf, T., Felser, C.: Electronic structure of fully epitaxial Co2TiSn thin films. Physical Review B. 83, : 064412 (2011).
Meinert, Markus, Schmalhorst, Jan-Michael, Wulfmeier, Hendrik, Reiss, Günter, Arenholz, Elke, Graf, Tanja, and Felser, Claudia. “Electronic structure of fully epitaxial Co2TiSn thin films”. Physical Review B 83.6 (2011): 064412.

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