In researches and developments of spintronics, studies of macroscopic properties in devices are dominant. However, recent researches such as magnonics in YIG, indicate that microscopic behaviors are important for more accurate elucidating observables. Moreover, quantum beams science is very useful for such fine investigation. This seminar is aimed to inform advantages of quantum beams such as X-ray, neutron, and muon to spintronics researchers. In addition, we would like to provide the chance to talk in English to you all. Please enjoy and make use of this great opportunity!