[Wien] Anisotropy of Co

[Pavel Novak]

Dear Sherif Yehia,

in noncubic magnetic systems there is indeed additional contribution to
magnetocrystalline anisotropy that corresponds to clasical dipolar
interaction of given atomic moment with all other magnetic moments in the
system. Some time ago I implemented a brute force approach by performing a
lattice summation. The program is based on SRC_nn and it also calculates
corresponding hyperfine field. I attach the SRC_dipan.tar.gz and also
dipan_comment.ps file with the detailed explanation. Only few test were
made and I'll be glad if other users will do them.

Regards
Pavel Novak

_________________________________________________
Dr. Pavel Novak
Department of Magnetism and Superconductivity
Institute of Physics AS CR
Cukrovarnicka 10, 162 53 Praha 6, Czech Republic
tel: +420 2 20 318 532
e-mail: novakp at fzu.cz

On Thu, 26 Jan 2006, Sherif Yehia wrote:

>
>   Dear wien2k users
>
>
>    In calculating the magnetocrystalline anisotropy of
>
> hcp magnetic Co in the Novak_lecture_on_spinorbit a
> certain
> correction for the lattice contribution to the total
> energy
> has to be made before calculating the difference
> between the
> energies when the magnetization vectors is either
> parallel or
> perpendicular to the c-axis.
>
>     What kind of correction should this be?
>
>
>    Thanks
>
>    Sherif
>
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