Spin dynamics in pyrochlore Nd2Mo2O7 in high longitudinal-fields

Most of Nd-pyrochlores show all-in-all-out long-ranged order ground state at low temperatures. However, Nd2Mo2O7 reveals two-in-two-out spin ice like state at low temperature, and possesses delocalized electrons which may host novel phenomena associated with the interaction between the localized moments Nd3+ and the itinerant moment Mo4+. In particular, Nd2Mo2O7 exhibits unusual spin chirality. In our previous ?SR experiments on Argus, the LF relaxation spectra does not reveal the decoupling behaviors even in the fields of 4 K Gauss. This result is very unusual while comparing to other pyrochlore compounds which typically exhibit spectra decoupling in lower fields of several hundreds Gauss. We thus propose to continuously study the spin dynamics in Nd2Mo2O7 in higher applied fields on Hifi.