TY - JOUR
T1 - Neutron Brillouin scattering experiments with pulsed neutrons on high resolution chopper spectrometer HRC
AU - Itoh, S.
AU - Yokoo, T.
AU - Kawana, D.
AU - Kaneko, Y.
AU - Tokura, Y.
AU - Fujita, M.
AU - Yoshida, K.
AU - Saito, K.
AU - Inami, N.
AU - Takeichi, Y.
AU - Ono, K.
AU - Endoh, Y.
PY - 2014
Y1 - 2014
N2 - 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.
AB - 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.
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U2 - 10.1088/1742-6596/502/1/012043
DO - 10.1088/1742-6596/502/1/012043
M3 - Conference article
AN - SCOPUS:84899648505
SN - 1742-6588
VL - 502
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012043
T2 - 1st Conference on Light and Particle Beams in Materials Science 2013, LPBMS 2013
Y2 - 29 August 2013 through 31 August 2013
ER -