Hello cp2k users,<br>I want to study a crystal of YAG (Y3Al5O12) doped with Yb3 +.<br><br>The cation Yb(III) tends to replace Y(III), since the two cations have very similar ionic radii.<br>Hence Yb
(III) occupies the dodecahedral sites of the crystal.<br>However, in the scientific literature it is hypothesized that a small percentage of doping Yb(III) can occupy the octahedral sites, i.e. Yb(III) replaces Al(III) cations.<br>This hypothesis is supported by recent spectroscopic evidence. The experimental data are present in the article https://doi.org/10.1016/j.jssc.2022.123577<div> <img alt="Yb_YAG_splitting_orbitals.jpg" data-iml="803054.7999999523" width="534px" height="401px" src="cid:7756636e-8cc9-45ab-90a7-046bff7fc8ad"> <br><br>I would like to succeed or evaluate the splitting of the f orbitals of the Yb3 + ion when it occupies the octahedral site of the crystal.<br><br>Is there any way I could deal with this kind of problem on CP2K?</div><div><br></div><div>I would have thought of bad structure or pdos calculations to extract this information (although I think it is not a simple thing and maybe it is not the correct way to go).<br>I have no experience with this type of calculations, but if you have suggestions I try to perform them following the guidelines of the exercise https://www.cp2k.org/exercises:2017_uzh_cmest:band.<br><br>Thanks for your help<br><br>Alberto<br></div>
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