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["Miguel A. Salvadó" <mass@uniovi.es>]

Hi,

Real lattice planes are related to reciprocal lattice vectors. The origin of
the FBZ is not a vector. When you speak of (1,1,1) reciprocal vector, you
are referring to the vector from the origin (0,0,0) to the point (1,1,1).

Miguel 



Miguel A. Salvadó
University of Oviedo
Spain

E-mail: mass@uniovi.es

-----Mensaje original-----
De: Hongyi Zhao [mailto:hongyi.zhao@gmail.com] 
Enviado el: miércoles, 18 de abril de 2007 4:21
Para: forum@abinit.org
Asunto: [abinit-forum] What's meaning of the origin of the first BZ and
which planes are corresponding to it in the real lattice space?

Hi all,

I can understand the concept of the first Brillouin Zone, but I cann't 
figure out the meaning of the origin of the first BZ and which planes 
are corresponding to it in the real lattice space.  I mean, the origin 
coordinate of the first Brillouin Zone is (0, 0, 0), so the 
corresponding plane(s) to it in the real lattice space should have the 
index (/infty /infty /infty ).  But what does this plane index mean, I 
just cann't understand.  Would anyone give me some hints on this?

Thanks in advance.

---
Hongyi Zhao
GnuPG DSA: 0xD108493B