[Wien] Magic angle for different edges in a sample

Wed Dec 17 09:28:34 CET 2014

Dear,
You should read the following article: ELNES at magic angle conditions by Hébert et al. in Ultramicroscopy 106 (2006) 1139–1143. In particular, it gives the set of reduced incident and collection angles •/•E and •/•E for working in the magic angle conditions, where •E depends on both the acceleration voltage and the edge energy.
Regards.

De : wien-bounces at zeus.theochem.tuwien.ac.at [mailto:wien-bounces at zeus.theochem.tuwien.ac.at] De la part de Hajar Nejati
Envoyé : mercredi 17 décembre 2014 09:11
À : A Mailing list for WIEN2k users
Objet : Re: [Wien] Magic angle for different edges in a sample

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 <kevinjorissenpdx at gmail.com>
To: A Mailing list for WIEN2k users <wien at zeus.theochem.tuwien.ac.at>
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 <hajar.nejatipoor at yahoo.com<mailto:hajar.nejatipoor at yahoo.com>> wrote:

Thank you dear Ciao

________________________________
From: "Fecher, Gerhard" <fecher at uni-mainz.de<mailto:fecher at uni-mainz.de>>
To: A Mailing list for WIEN2k users <wien at zeus.theochem.tuwien.ac.at<mailto:wien at zeus.theochem.tuwien.ac.at>>
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: wien-bounces at zeus.theochem.tuwien.ac.at<mailto:wien-bounces at zeus.theochem.tuwien.ac.at> [wien-bounces at zeus.theochem.tuwien.ac.at<mailto:wien-bounces at zeus.theochem.tuwien.ac.at>] im Auftrag von Hajar Nejati [hajar.nejatipoor at yahoo.com<mailto:hajar.nejatipoor at yahoo.com>]
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" <fecher at uni-mainz.de<mailto:fecher at uni-mainz.de>>
To: A Mailing list for WIEN2k users <wien at zeus.theochem.tuwien.ac.at<mailto:wien at zeus.theochem.tuwien.ac.at>>
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: wien-bounces at zeus.theochem.tuwien.ac.at<mailto:wien-bounces at zeus.theochem.tuwien.ac.at><mailto:wien-bounces at zeus.theochem.tuwien.ac.at<mailto:wien-bounces at zeus.theochem.tuwien.ac.at>> [wien-bounces at zeus.theochem.tuwien.ac.at<mailto:wien-bounces at zeus.theochem.tuwien.ac.at><mailto:wien-bounces at zeus.theochem.tuwien.ac.at<mailto:wien-bounces at zeus.theochem.tuwien.ac.at>>] im Auftrag von Hajar Nejati [hajar.nejatipoor at yahoo.com<mailto:hajar.nejatipoor at yahoo.com><mailto:hajar.nejatipoor at yahoo.com<mailto:hajar.nejatipoor at yahoo.com>>]
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?

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