TY  - JOUR
AU  - Skaugen, Arvid
AU  - Schierle, Enrico
AU  - van der Laan, Gerrit
AU  - Shukla, Dinesh Kumar
AU  - Walker, Helen
AU  - Weschke, Eugen
AU  - Strempfer, Joerg
TI  - 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>
JO  - Physical review / B
VL  - 91
IS  - 18
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - PUBDB-2015-02133
SP  - 180409
PY  - 2015
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000355090300002
DO  - DOI:10.1103/PhysRevB.91.180409
UR  - https://bib-pubdb1.desy.de/record/220186
ER  -