  Exchange bias is often observed when anti-ferromagnetic and ferromagnetic
phases coexist. The coexistence of two competing magnetic phases can persist to
the lowest temperatures if the disorder-broadened 1st order transition
separating them is interrupted, as is proposed in the kinetic arrest
phenomenon. The fractions of coexisting phases can, in this phenomenon, be
tuned by following different cooling protocols. We discuss predicted behaviours
of exchange bias resulting from the kinetic arrest phenomenon. Specifically,
for appropriate values of cycling field Hmax and measuring temperature T0 there
will be no exchange bias under cooling in zero field, while it will manifest
with increasing cooling field, and then saturate.
