Neutron Brillouin scattering experiments with pulsed neutrons on high resolution chopper spectrometer HRC

S. Itoh, T. Yokoo, D. Kawana, Y. Kaneko, Y. Tokura, M. Fujita, K. Yoshida, K. Saito, N. Inami, Y. Takeichi, K. Ono, Y. Endoh

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)

Abstract

We improved the High Resolution Chopper Spectrometer (HRC), which is installed at MLF in J-PARC, in order to perform neutron Brillouin scattering (NBS) experiments, and successfully demonstrated a feasibility of this method. Gapless spin-wave excitations were observed in La0.8Sr0.2MnO3, which were in good agreement with previous results using single crystals, on the other hand, a large energy gap in the ferromagnetic spin waves was found in SrRuO3. Spin-wave peaks in a permanent magnet Nd2Fe14B were on the dispersion curve determined previously using a single crystal. Excitations, so-called fast sound, in liquid D2O were in a good agreement with previous inelastic neutron scattering experiments and the dispersion curve were extended to the lower Q region.

Original languageEnglish
Article number012043
JournalJournal of Physics: Conference Series
Volume502
Issue number1
DOIs
Publication statusPublished - 2014 Jan 1
Externally publishedYes
Event1st Conference on Light and Particle Beams in Materials Science 2013, LPBMS 2013 - Tsukuba, Japan
Duration: 2013 Aug 292013 Aug 31

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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