Static And Quasielastic Properties Of The Spiral Magnet Ba2cuge2o7 Studied By Neutron Resonance Spin Echo Spectroscopy And Neutron Larmor Labeling

We provide a route to use elastic and quasielastic neutron spin echo spectroscopy (Larmor labeling) for a unified approach to study both the static and dynamic properties of incommensurate magnetic structures with small propagation vectors. The archetypal noncentrosymmetric spiral magnet Ba2CuGe2O7 serves as a model system for our study. We show how Larmor labeling can efficiently decouple instrumental wavelength resolution and effective-(Q) over right arrow resolution and give high-precision access to the structural properties of the incommensurate domains of Ba2CuGe2O7.