Magnetic structure of Dy3+ in hexagonal multiferroic DyMnO3

TitleMagnetic structure of Dy3+ in hexagonal multiferroic DyMnO3
Publication TypeJournal Article
Year of Publication2008
AuthorsNandi S, Kreyssig A, Yan JQ, Vannette MD, Lang JC, Tan L, Kim JW, Prozorov R, Lograsso TA, McQueeney RJ, Goldman AI
Journal TitlePhysical Review B
Volume78
Pages075118
Date PublishedAug
Type of ArticleArticle
ISBN Number1098-0121
Accession NumberISI:000259406700040
Keywordsexchange scattering, HOMNO3, polarization, single-crystals, TRANSITIONS
Abstract

Element specific x-ray resonant magnetic scattering (XRMS) investigations were undertaken to determine the magnetic structure of the multiferroic compound, hexagonal DyMnO3. In the temperature range from 68 K down to 8 K the Dy3+ moments are aligned and antiferromagnetically correlated in the c direction according to the magnetic representation Gamma(3). The temperature dependence of the observed intensity can be modeled assuming the splitting of ground-state doublet crystal-field levels of Dy3+ by the exchange field of Mn3+. XRMS together with magnetization measurements indicate that the magnetic representation is Gamma(2) below 8 K.

DOI10.1103/PhysRevB.78.075118
Alternate JournalPhys. Rev. B