Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1621529 | Journal of Alloys and Compounds | 2009 | 6 Pages |
Abstract
The temperature dependencies of the magnetic susceptibility χχ and its anisotropy Δχ=χ‖−χ⊥ were measured for the hexagonal single crystalline TB2 compounds (T=ScT=Sc, Ti, Zr, Hf, V and Cr) in the temperature range 4.2–300 K. It was found that Δχ varies strongly and nonmonotonously with the filling of the hybridized d-band, being almost temperature independent and the largest for the diborides of group 4 metals. Ab initio calculations of the electronic structure and susceptibility of the diborides provide evidence that magnetic anisotropy originates from competing Van Vleck paramagnetism and the orbital diamagnetism of conduction electrons.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
G.E. Grechnev, A.V. Fedorchenko, A.V. Logosha, A.S. Panfilov, I.V. Svechkarev, V.B. Filippov, A.B. Lyashchenko, A.V. Evdokimova,