セミナー情報

第57回 原研・兵県大合同コロキウム

日時: 平成21年3月10日(火) 15：00～
Date and time: 10th Mar. (Tue.) 15:00～
場所: SPring-8, 萌光館
Place: SPring-8, "HOUKOUKAN" seminar room
題目: カイラルらせん磁性体のソリトン格子振動とESR
Title: Magnetic "phonon" and ESR signal in chiral helimagnet
講演者: 岸根 順一郎 氏 （九州工業大学）
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.