抄録
We have investigated the low-temperature phase appearing below T0 = 1.75 K in URu2Si2 by 29Si NMR in the pressure range from 0 to 1.75 GPa. At pressures below Pc = 1.5 GPa, we have observed 29Si NMR lines arising from antiferromagnetic (AF) and paramagnetic (PM) regions in the sample, which provide evidence for a phase separated AF ordering below T0. The AF region increases with increasing pressure up to Pc.
