Re: [Wien] How to recognize that which peak of EELS comes from which adsobant ?

2015-05-20 Thread Gavin Abo 
As you can probably tell from Prof. Marks valued comment, I'm not an 
expert on EELS.  Sorry, the theoretical part of what I said before is 
not correct.  In WIEN2k, you should be able to calculate the ELNES parts 
of the EELS spectrum.  See the description of case.innes in the Telnes3 
section of the WIEN2k usersguide.  Rather than having to 'identify' the 
element (atom), it looks like you have to 'specify' what the 
inequivalent atom is and what the energy-loss of the 1st edge should 
be.  If I now understand your question correctly, you are asking about 
how to identify and understand the peaks in ELNES spectra.  I don't know 
in detail, but I think that is done using an overlap population 
diagram.  You should be able to read more about it in the document and 
references contained therein at:


http://www.congre.co.jp/amtc4/pdf/amtc03/amtc_3_068.pdf

Also, you might what to have a look at the WIEN2k ELNES documents on the 
WIEN2k website [ http://www.wien2k.at/reg_user/textbooks/ ].


On 5/20/2015 8:33 PM, Naseem Hassan wrote:

Dear Prof. Gavin Abo and Prof. Laurence Marks

Thanks for the input. As we know, EELS can be obtained from wien2k in 
OPTICAL Property section. There should be some kind of origin for 
Energy loss peaks. I will go though Prof Gavin Abo's provided links.


Many Thanks
Naseem Hassan

On Thu, May 21, 2015 at 4:33 AM, Laurence Marks 
mailto:l-ma...@northwestern.edu>> wrote:


Good try Gavin, but from the sounds of it he is doing SREELS
(surface reflection EELS).

This is really the wrong place for this type of question, I
suggest the Surface Science list at
http://goliath.emt.inrs.ca/surfsci/listserver.html

On Wed, May 20, 2015 at 2:25 PM, Gavin Abo mailto:gs...@crimson.ua.edu>> wrote:

For experimental EELS data, I think there are software
programs out
there for that:

EELSTools [ http://www.dmscripting.com/eelstools.html ]
EELSModel [ http://www.eelsmodel.ua.ac.be/ ]

However, I don't know if you can import WIEN2k EELS data into
them, and
I'm not aware of any software for theoretical EELS data.

So you might have to do the edge identification by hand. 
There is a

book titled "Analytical Electron Microscopy for Materials
Science" by
Daisuke Shindo and Tetsuo Oikawa, which you should be able to
find on
the Springer website at

http://link.springer.com/book/10.1007/978-4-431-66988-3

In the Front Matter pdf, there is a "Table of Electron Binding
Energies
(eV) for Electron Energy-Loss Spectra (EELS)", and it says,
"This table
can be used to identify edges in energy-loss spectra".

On 5/20/2015 2:06 AM, Naseem Hassan wrote:
> Dear all.
>
> I have obtained electron energy loss spectrum for different
adsobants
> on the surface for varying concentration. How to recognize
that which
> peak of EELS comes from which adsobant ? How can one
determine the
> types of atoms, and the numbers of atoms of each type, being
struck by
> the beam ?
>
> Many Thanks
> Naseem Hassan
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-- 
Professor Laurence Marks

Department of Materials Science and Engineering
Northwestern University
www.numis.northwestern.edu 
Corrosion in 4D: MURI4D.numis.northwestern.edu

Co-Editor, Acta Cryst A
"Research is to see what everybody else has seen, and to think
what nobody else has thought"
Albert Szent-Gyorgi

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Re: [Wien] How to recognize that which peak of EELS comes from which adsobant ?

2015-05-20 Thread Naseem Hassan 
Dear Prof. Gavin Abo and Prof. Laurence Marks

Thanks for the input. As we know, EELS can be obtained from wien2k in
OPTICAL Property section. There should be some kind of origin for Energy
loss peaks. I will go though Prof Gavin Abo's provided links.

Many Thanks
Naseem Hassan

On Thu, May 21, 2015 at 4:33 AM, Laurence Marks 
wrote:

> Good try Gavin, but from the sounds of it he is doing SREELS (surface
> reflection EELS).
>
> This is really the wrong place for this type of question, I suggest the
> Surface Science list at http://goliath.emt.inrs.ca/surfsci/listserver.html
>
> On Wed, May 20, 2015 at 2:25 PM, Gavin Abo  wrote:
>
>> For experimental EELS data, I think there are software programs out
>> there for that:
>>
>> EELSTools [ http://www.dmscripting.com/eelstools.html ]
>> EELSModel [ http://www.eelsmodel.ua.ac.be/ ]
>>
>> However, I don't know if you can import WIEN2k EELS data into them, and
>> I'm not aware of any software for theoretical EELS data.
>>
>> So you might have to do the edge identification by hand.  There is a
>> book titled "Analytical Electron Microscopy for Materials Science" by
>> Daisuke Shindo and Tetsuo Oikawa, which you should be able to find on
>> the Springer website at
>>
>> http://link.springer.com/book/10.1007/978-4-431-66988-3
>>
>> In the Front Matter pdf, there is a "Table of Electron Binding Energies
>> (eV) for Electron Energy-Loss Spectra (EELS)", and it says, "This table
>> can be used to identify edges in energy-loss spectra".
>>
>> On 5/20/2015 2:06 AM, Naseem Hassan wrote:
>> > Dear all.
>> >
>> > I have obtained electron energy loss spectrum for different adsobants
>> > on the surface for varying concentration. How to recognize that which
>> > peak of EELS comes from which adsobant ? How can one determine the
>> > types of atoms, and the numbers of atoms of each type, being struck by
>> > the beam ?
>> >
>> > Many Thanks
>> > Naseem Hassan
>> ___
>> Wien mailing list
>> Wien@zeus.theochem.tuwien.ac.at
>> http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
>> SEARCH the MAILING-LIST at:
>> http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/index.html
>>
>
>
>
> --
> Professor Laurence Marks
> Department of Materials Science and Engineering
> Northwestern University
> www.numis.northwestern.edu
> Corrosion in 4D: MURI4D.numis.northwestern.edu
> Co-Editor, Acta Cryst A
> "Research is to see what everybody else has seen, and to think what nobody
> else has thought"
> Albert Szent-Gyorgi
>
> ___
> Wien mailing list
> Wien@zeus.theochem.tuwien.ac.at
> http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
> SEARCH the MAILING-LIST at:
> http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/index.html
>
>
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Re: [Wien] How to recognize that which peak of EELS comes from which adsobant ?

2015-05-20 Thread Laurence Marks 
Good try Gavin, but from the sounds of it he is doing SREELS (surface
reflection EELS).

This is really the wrong place for this type of question, I suggest the
Surface Science list at http://goliath.emt.inrs.ca/surfsci/listserver.html

On Wed, May 20, 2015 at 2:25 PM, Gavin Abo  wrote:

> For experimental EELS data, I think there are software programs out
> there for that:
>
> EELSTools [ http://www.dmscripting.com/eelstools.html ]
> EELSModel [ http://www.eelsmodel.ua.ac.be/ ]
>
> However, I don't know if you can import WIEN2k EELS data into them, and
> I'm not aware of any software for theoretical EELS data.
>
> So you might have to do the edge identification by hand.  There is a
> book titled "Analytical Electron Microscopy for Materials Science" by
> Daisuke Shindo and Tetsuo Oikawa, which you should be able to find on
> the Springer website at
>
> http://link.springer.com/book/10.1007/978-4-431-66988-3
>
> In the Front Matter pdf, there is a "Table of Electron Binding Energies
> (eV) for Electron Energy-Loss Spectra (EELS)", and it says, "This table
> can be used to identify edges in energy-loss spectra".
>
> On 5/20/2015 2:06 AM, Naseem Hassan wrote:
> > Dear all.
> >
> > I have obtained electron energy loss spectrum for different adsobants
> > on the surface for varying concentration. How to recognize that which
> > peak of EELS comes from which adsobant ? How can one determine the
> > types of atoms, and the numbers of atoms of each type, being struck by
> > the beam ?
> >
> > Many Thanks
> > Naseem Hassan
> ___
> Wien mailing list
> Wien@zeus.theochem.tuwien.ac.at
> http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
> SEARCH the MAILING-LIST at:
> http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/index.html
>



-- 
Professor Laurence Marks
Department of Materials Science and Engineering
Northwestern University
www.numis.northwestern.edu
Corrosion in 4D: MURI4D.numis.northwestern.edu
Co-Editor, Acta Cryst A
"Research is to see what everybody else has seen, and to think what nobody
else has thought"
Albert Szent-Gyorgi
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Re: [Wien] How to recognize that which peak of EELS comes from which adsobant ?

2015-05-20 Thread Gavin Abo 
For experimental EELS data, I think there are software programs out 
there for that:


EELSTools [ http://www.dmscripting.com/eelstools.html ]
EELSModel [ http://www.eelsmodel.ua.ac.be/ ]

However, I don't know if you can import WIEN2k EELS data into them, and 
I'm not aware of any software for theoretical EELS data.


So you might have to do the edge identification by hand.  There is a 
book titled "Analytical Electron Microscopy for Materials Science" by 
Daisuke Shindo and Tetsuo Oikawa, which you should be able to find on 
the Springer website at


http://link.springer.com/book/10.1007/978-4-431-66988-3

In the Front Matter pdf, there is a "Table of Electron Binding Energies 
(eV) for Electron Energy-Loss Spectra (EELS)", and it says, "This table 
can be used to identify edges in energy-loss spectra".


On 5/20/2015 2:06 AM, Naseem Hassan wrote:

Dear all.

I have obtained electron energy loss spectrum for different adsobants 
on the surface for varying concentration. How to recognize that which 
peak of EELS comes from which adsobant ? How can one determine the 
types of atoms, and the numbers of atoms of each type, being struck by 
the beam ?


Many Thanks
Naseem Hassan

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[Wien] How to recognize that which peak of EELS comes from which adsobant ?

2015-05-20 Thread Naseem Hassan 
Dear all.

I have obtained electron energy loss spectrum for different adsobants on
the surface for varying concentration. How to recognize that which peak of
EELS comes from which adsobant ? How can one determine the types of atoms,
and the numbers of atoms of each type, being struck by the beam ?

Many Thanks
Naseem Hassan
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