Field-Induced Magnetic Order in Frustrated TbBaCo4O7Single Crystals

We present results of dc magnetic susceptibility measurements in TbBaCo4O7 single crystals performed at temperatures in the range 2–300 K and in magnetic fields up to 55 kOe. The results obtained seem to suggest that the ground state of TbBaCo4O7 is composed of coexisting long-range ordered and short-range ordered clusters and is transformed into a magnetically ordered weak ferromagnetic phase by application high magnetic field along c-axis.