Nandi S, Kreyssig A, Tan L, Kim JW, Yan JQ, Lang JC, Haskel D, McQueeney RJ, Goldman AI. Nature of Ho magnetism in multiferroic HoMnO3.
PHYSICAL REVIEW LETTERS 2008;
100:217201. [PMID:
18518629 DOI:
10.1103/physrevlett.100.217201]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2008] [Indexed: 05/26/2023]
Abstract
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 1 x 10(7) V/m, the magnetic structure of Ho3+ remains unchanged.
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