Future perspectives of μSR studies in condensed matter physics

Technological aspects of μSR measurements in the wake of unprecedented high flux pulsed muon beam provided by J-PARC MUSE facility is discussed. For the efficient use of high flux beam, two alternative possibilities are presented for the conceptual design of the μSR spectrometer, one based on the time-differential technique and the other that collects time-integral information only. The important role of the latter technique that can be cast into a device with an appearance of commercially available magnetometer ('μPMS') is emphasized for the broader access of μSR technique to the community of condensed matter physics.