Abstract
The neutron Brillouin scattering (NBS) method was employed at the High Resolution Chopper Spectrometer (HRC) installed at J-PARC. With the recent developments in pulsed neutron sources that can realize high-energy incoming neutrons, the NBS method can be explored to facilitate further developments in material science. As a typical example, ferromagnetic spin waves in a polycrystalline sample of La0.8Sr0.2MnO3 were measured. Spin waves with a Q2 dispersion relation were clearly observed, which agreed well with previous studies that used single crystals.
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