  The intrinsic orbital Hall effect (OHE), the orbital counterpart of the spin
Hall effect, was predicted and studied theoretically for more than one decade,
yet to be observed in experiments. Here we propose a strategy to convert the
orbital current in OHE to the spin current via the spin-orbit coupling from the
contact. Furthermore, we find that OHE can induce large nonreciprocal
magnetoresistance when employing magnetic contact. Both the generated spin
current and the orbital Hall magnetoresistance can be applied to probe the OHE
in experiments and design orbitronic devices.
