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Date and time: 10th Mar. (Tue.) 15:00`
êŠ: SPring-8, –GŒõŠÙ
Place: SPring-8, "HOUKOUKAN" seminar room
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Title: Magnetic "phonon" and ESR signal in chiral helimagnet
u‰‰ŽÒ: ŠÝª ‡ˆê˜Y Ž i‹ãBH‹Æ‘åŠwj
Speaker: Prof. Jun Kishine (Kyushu University of Technology)
Abstract:

In chiral helimagnet under the transverse magnetic field, there appears a regular array of magnetic kinks which looks like crystalline lattice of topological defects. Recently, we clarified nature of the elementary excitations around this state and obtained exact "phonon" propagator. Using this, we report that the pulsed magnetic field can excite the phonon modes and consequently anomalous ESR signals are expected to appear.