Re: [SIESTA-L] About PDOS for 2p orbitals

2006-12-05 Thread Oleksandr Voznyy
Perhaps a more physical way to look at things would be to use the maximally localized Wannier functions (which are quite similar but have a more molecular meaning). How exactly to do that? Or you mean exactly looking at LDOS of some energy region?

Re: [SIESTA-L] About PDOS for 2p orbitals

2006-12-05 Thread Vasilii Artyukhov
2006/12/4, Oleksandr Voznyy [EMAIL PROTECTED]: I still haven't got any reasonable explanation from other people. The only suggestion I hear many times that hybridization concept is oversimplified and you need to think of molecular orbitals rather than simple hybridization of atomic orbitals.

Re: [SIESTA-L] About PDOS for 2p orbitals

2006-12-04 Thread Oleksandr Voznyy
I think the simplest way to see what hybridization you have is to look at DRHO plot. Looking at just LDOS of some energy window can mislead your conclusions. For example, recently I've tried to do similar things for GaAs surface. In some of my geometries (of something adsorbed on GaAs surface)

Re: [SIESTA-L] About PDOS for 2p orbitals

2006-12-04 Thread Marcos Verissimo Alves
Hi Alexander, Marcos, you can see the PDOS for x,y,z (more correctly, for l=-1,0,1 components) but keep in mind that the division into x,y,z, is absolutely arbitrary - they are just the projections onto a given axis. I mean that the (free) atoms are spherically symmetrical, so that x,y,z

Re: [SIESTA-L] About PDOS for 2p orbitals

2006-12-02 Thread Oleksandr Voznyy
Marcos, you can see the PDOS for x,y,z (more correctly, for l=-1,0,1 components) but keep in mind that the division into x,y,z, is absolutely arbitrary - they are just the projections onto a given axis. I mean that the (free) atoms are spherically symmetrical, so that x,y,z components are just

[SIESTA-L] About PDOS for 2p orbitals

2006-12-02 Thread Marcos Verissimo Alves
Hi all, I would like to obtain the PDOS of a Carbon-based system, but for the different 2p orbitals in separate, that is, PDOS(2p_x), PDOS(2p_y) and PDOS(2p_z), as well as the LDOS for these orbitals alone, so as to determine if elctronic states near the Fermi energy have solely p_z character, or