That is correct Scott.
Thanks for helping on casting the problem.
/J
On 09 May 2014, at 22:13, Scott Webster
<[email protected]<mailto:[email protected]>> wrote:
I believe that for each X/Y grid point, the tip is moved through a series of Z
position heights. At each height a measurement is made (e.g. current).
I think what Jose wants is the following. For each X/Y grid point, find the Z
height corresponding to a certain current (or first Z height for which current
is above/below a threshold). Now you have a "normal" dataset with a certain Z
height for each X/Y point and can display as desired.
On Fri, May 9, 2014 at 1:58 PM, David Nečas (Yeti)
<[email protected]<mailto:[email protected]>> wrote:
On Fri, May 09, 2014 at 08:27:53PM +0000, José Coutinho wrote:
> Not sure if you understood it right. I meant the maximum z-coordinate
> that corresponds to a user-defined (constant) LDOS(E+dE,x,y,z).
> Basically, in STM the tip hoovers over a landscape with approximately
> constant LDOS.
I admit that, being the kind of physicist preferring pencil and paper to
fickle real-world samples, I have only some basic understanding of STM.
Anyway, for me the full STM description would have 4 abscissa axes (the
fourth being voltage, electron energy, or something similar), whether we
talk about current, density of states, or anything. So please dumb it
down for me by saying explicitly what are the axes for the N1×N2×N3 grid
and what is the value (ordinate) because I am still missing one axis
somewhere.
Thanks,
Yeti
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