Observation of spin helicity using nonresonant circularly polarized X-ray diffraction analysis

Hajime Sagayama, Nobuyuki Abe, Kouji Taniguchi, Taka Hisa Arima, Yuichi Yamasaki, Daisuke Okuyama, Yoshinori Tokura, Souichiro Sakai, Takeshi Morita, Takashi Komesu, Hiroyuki Ohsumi, Masaki Takata

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We have successfully detected spin chirality in prototypical multiferroic MnWO4 wherein the helical magnetic order induces ferroelectricity using a nonresonant circularly polarized X-ray diffraction technique. The intensity of the magnetic reflection from MnWO4 shows a clear difference between the right- and left-handed circular polarizations of the incident X-ray beam. The ratio of these intensities is in good agreement with theoretical predictions. The results clearly show that this technique is suitable for the investigation of spin chirality. Finally, we studied the spin chirality of another multiferroic material, DyMnO3. Possible applications of this technique are also discussed.

Original languageEnglish
Article number043711
Journaljournal of the physical society of japan
Volume79
Issue number4
DOIs
Publication statusPublished - 2010 Apr 1

Keywords

  • Circularly polarized X-ray
  • Magnetic X-ray diffraction
  • Multiferroic

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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