Electronic structure and transport properties of the Heusler compound Co2TiAl

Graf, Tanja; Fecher, Gerhard H.; Barth, Joachim; Winterlik, Jürgen; Felser, Claudia

doi:10.1088/0022-3727/42/8/084003

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Electronic structure and transport properties of the Heusler compound Co₂TiAl

MPS-Authors

There are no MPG-Authors in the publication available

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Graf, T., Fecher, G. H., Barth, J., Winterlik, J., & Felser, C. (2009). Electronic structure and transport properties of the Heusler compound Co₂TiAl. Journal of Physics D: Applied Physics, 42(8): 084003, pp. 1-11. doi:10.1088/0022-3727/42/8/084003.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0018-9991-E

Abstract

The properties of the Heusler compound Co2TiAl were investigated in detail by experimental techniques and theoretical methods. X-ray diffraction measurements indicate that as-cast samples of the compound exhibit the L2(1) structure with a small amount of B2-type disorder. This leads to a reduced saturation magnetization per formula unit of 0.747 mu(B). The Curie temperature is approximately 120 K. The transport properties are influenced by the change in the electronic structure at the Curie temperature, as revealed experimentally by conductivity, thermal transport and specific heat measurements. Different theoretical models based on ab initio calculations of the electronic structure are used to explain the experimental observations.