[Pw_forum] Electron affinity

[Stefano Baroni]

I think it depends on how the electron affinity is supposed to be  
measured/used.
The electron affinity (i.e. the absolute position of the bottom of  
the conduction band) is an ill defined concept in an infinite system.  
Its actual value depends on surface/interface effects, whose modeling  
may depends on the details of the experimental setup.
Stefano

On Apr 2, 2007, at 3:24 PM, lukethulin at netscape.net wrote:

> Does anybody know how to choose a reference energy to track the  
> change in electron affinity of a strained crystal?
>
> Thank you,
>
> Luke Thulin
> Nanoptek, Corp.
> 8 Clock Tower Place, Suite 120
> Maynard, MA 01754
>

---
Stefano Baroni - SISSA  &  DEMOCRITOS National Simulation Center -  
Trieste
[+39] 040 3787 406 (tel) -528 (fax) / stefanobaroni (skype)

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