%0 Journal Article
%A Skaugen, Arvid
%A Schierle, Enrico
%A van der Laan, Gerrit
%A Shukla, Dinesh Kumar
%A Walker, Helen
%A Weschke, Eugen
%A Strempfer, Joerg
%T Long-range antiferromagnetic order of formally nonmagnetic Eu<sup>3+</sup> Van Vleck ions observed in multiferroic Eu<sub>1−x</sub>Y<sub>x</sub>MnO<sub>3</sub>
%J Physical review / B
%V 91
%N 18
%@ 1098-0121
%C College Park, Md.
%I APS
%M PUBDB-2015-02133
%P 180409
%D 2015
%X We report on resonant magnetic x-ray scattering and absorption spectroscopy studies of exchange-coupled antiferromagnetic ordering of Eu3+ magnetic moments in multiferroic Eu1−xYxMnO3 in the absence of an external magnetic field. The observed resonant spectrum is characteristic of a magnetically ordered 7F1 state that mirrors the Mn magnetic ordering, due to exchange coupling between the Eu 4f and Mn 3d spins. Here, we observe long-range magnetic order generated by exchange coupling of magnetic moments of formally nonmagnetic Van Vleck ions, which is a step further towards the realization of exotic phases induced by exchange coupling in systems entirely composed of non magnetic ions.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000355090300002
%R 10.1103/PhysRevB.91.180409
%U https://bib-pubdb1.desy.de/record/220186