Equilibrium current vortices in simple metals doped with rare earths

Adam B. Cahaya, Alejandro O. Leon, Mojtaba Rahimi Aliabad, Gerrit E.W. Bauer

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Dilute alloys of rare earths have played a vital role in understanding magnetic phenomena. Here, we model the ground state of dilute 4f rare-earth impurities in light metals. When the 4f subshells are open (but not half-filled), the spin-orbit coupling imprints a rotational charge current of conduction electrons around rare-earth atoms. The sign and amplitude of the current oscillate similar to the Ruderman-Kittel-Kasuya-Yosida (RKKY) spin polarization. We compute the observable effect, namely, the Ørsted field generated by the current vortices and the Knight shift.

Originele taal-2English
Artikelnummer064433
Aantal pagina's9
TijdschriftPhysical Review B
Volume103
Nummer van het tijdschrift6
DOI's
StatusPublished - 26-feb-2021

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