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Long-range antiferromagnetic order of formally nonmagnetic Eu3+ Van Vleck ions observed in multiferroic Eu1-xYxMnO3

DOI: 10.1103/PhysRevB.91.180409 DOI Help

Authors: A. Skaugen (Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, D-22607 Hamburg, Germany) , E. Schierle (Helmholtz-Zentrum Berlin f¨ur Materialien und Energie, Albert-Einstein-Str. 15, D-12489 Berlin, Germany) , G. Van Der Laan (Diamond Light Source) , D. K. Shukla (Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, D-22607 Hamburg, Germany) , Helen Walker (ISIS) , E. Weschke (Helmholtz-Zentrum Berlin f¨ur Materialien und Energie, Albert-Einstein-Str. 15, D-12489 Berlin, Germany) , J. Strempfer (Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, D-22607 Hamburg, Germany)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physical Review B , VOL 91 (18) , PAGES 180409

State: Published (Approved)
Published: May 2015

Abstract: 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.

Diamond Keywords: Antiferromagnetism; Ferroelectricity

Subject Areas: Physics, Materials, Information and Communication Technology

Facility: UE46-PGM1 at BESSY II; P09 at PETRA III

Added On: 31/05/2015 16:10

Discipline Tags:

Quantum Materials Multiferroics Physics Magnetism Materials Science

Technical Tags: