Hi Hajar, The edge energies are ~800% different, and the magic angles will also be ~800% different. It will be completely impossible to have both edges within magic angle in the same experiment. Although that is likely a theoretical problem, as I don't think people usually measure EELS up to 10,000 eV. That's more X-ray regime. (There is also a so-called "magic angle" in x-ray absorption spectroscopy, but it's something completely different from the magic angle in EELS.)
I highly recommend the Hebert paper (2006). The Sun and Yuan paper is also good but (my memory may be wrong on this) it may contain a mistake in some of the algebra, whereas the Hebert paper is definitely relativistically correct. Cheers Kevin On Wed, Dec 17, 2014 at 9:11 AM, Hajar Nejati <[email protected]> wrote: > > Dear Kevin > > Thank you for your reply > > For example, the energy loss of K- and L-edge of a Zn atom in ZnS are 9670 > and 1043 eV, respectively. > Can one expect the magic angle for K- and L-edge belonged to a Zn atom to > be the same? > > > > ------------------------------ > *From:* Kevin Jorissen <[email protected]> > *To:* A Mailing list for WIEN2k users <[email protected]> > *Sent:* Tuesday, December 16, 2014 3:54 AM > > *Subject:* Re: [Wien] Magic angle for different edges in a sample > > It's a function of the energy loss. If the L and K edge belong to > different elements and are at approximately the same energy loss, then they > will have approximately the same magic angle. > > > > On Tue, Dec 16, 2014 at 12:00 PM, Hajar Nejati <[email protected] > > wrote: > > > > Thank you dear Ciao > > ------------------------------ > *From:* "Fecher, Gerhard" <[email protected]> > *To:* A Mailing list for WIEN2k users <[email protected]> > *Sent:* Tuesday, December 16, 2014 1:34 AM > > *Subject:* Re: [Wien] Magic angle for different edges in a sample > > maybe you should read > Phys. Rev. B 71, 125109 (2005) > by Y. Sun and J. Yuan > > Ciao > Gerhard > > DEEP THOUGHT in D. Adams; Hitchhikers Guide to the Galaxy: > "I think the problem, to be quite honest with you, > is that you have never actually known what the question is." > > ==================================== > Dr. Gerhard H. Fecher > Institut of Inorganic and Analytical Chemistry > Johannes Gutenberg - University > 55099 Mainz > and > Max Planck Institute for Chemical Physics of Solids > 01187 Dresden > ________________________________________ > Von: [email protected] [ > [email protected]] im Auftrag von Hajar Nejati [ > [email protected]] > Gesendet: Dienstag, 16. Dezember 2014 08:45 > An: A Mailing list for WIEN2k users > Betreff: Re: [Wien] Magic angle for different edges in a sample > > dear Gerhard > > My mean of magic angle is a collection semi-angle in the ELNES spectrum > that gives rise to the orientation-independent spectrum. > > ________________________________ > From: "Fecher, Gerhard" <[email protected]> > To: A Mailing list for WIEN2k users <[email protected]> > Sent: Monday, December 15, 2014 11:27 PM > Subject: Re: [Wien] Magic angle for different edges in a sample > > what do you mean with "magic angle" ? > Do you mean the angle where the second Legendre polynonial vanishes ? > > Ciao > Gerhard > > DEEP THOUGHT in D. Adams; Hitchhikers Guide to the Galaxy: > "I think the problem, to be quite honest with you, > is that you have never actually known what the question is." > > ==================================== > Dr. Gerhard H. Fecher > Institut of Inorganic and Analytical Chemistry > Johannes Gutenberg - University > 55099 Mainz > and > Max Planck Institute for Chemical Physics of Solids > 01187 Dresden > ________________________________________ > > > > Von: [email protected]<mailto: > [email protected]> [ > [email protected]<mailto: > [email protected]>] im Auftrag von Hajar Nejati [ > [email protected]<mailto:[email protected]>] > Gesendet: Dienstag, 16. Dezember 2014 08:10 > An: A. Mailing List for WIEN2k Users > Betreff: [Wien] Magic angle for different edges in a sample > > Hi dear wien2k developers > > I have a question about the magic angle: > > Are the magic angles for K-edge and L-edge equal together or are > different, in a sample? > > > _______________________________________________ > Wien mailing list > [email protected]<mailto:[email protected]> > http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien > SEARCH the MAILING-LIST at: > http://www.mail-archive.com/[email protected]/index.html > > > > > > > _______________________________________________ > Wien mailing list > [email protected] > http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien > SEARCH the MAILING-LIST at: > http://www.mail-archive.com/[email protected]/index.html > > > > _______________________________________________ > Wien mailing list > [email protected] > http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien > SEARCH the MAILING-LIST at: > http://www.mail-archive.com/[email protected]/index.html > > > _______________________________________________ > Wien mailing list > [email protected] > http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien > SEARCH the MAILING-LIST at: > http://www.mail-archive.com/[email protected]/index.html > > > > _______________________________________________ > Wien mailing list > [email protected] > http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien > SEARCH the MAILING-LIST at: > http://www.mail-archive.com/[email protected]/index.html > >
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