The nature of Ho magnetism in multiferroic HoMnO3

Details The nature of Ho magnetism in multiferroic HoMnO3 The nature of Ho magnetism in multiferroic HoMnO3

2008-04-18

arxiv.org/abs/0804.2921v1

Phys. Rev. Lett. 100, 217201 (2008)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 3 figures Manuscript accepted for publication in Phys. Rev. Lett. 2008

Scientific paper

10.1103/PhysRevLett.100.217201

Using x-ray resonant magnetic scattering and x-ray magnetic circular dichroism, techniques that are element specific, we have elucidated the role of Ho3+ in multiferroic HoMnO3. In zero field, Ho3+ orders antiferromagnetically with moments aligned along the hexagonal c direction below 40 K, and undergoes a transition to another magnetic structure below 4.5 K. In applied electric fields of up to 1x10^7 V/m, the magnetic structure of Ho3+ remains unchanged.

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