HIGH-FIELD MAGNETIZATION AND SPECIFIC-HEAT OF TMNI5

High-field magnetization on two single-crystalline samples from differ ent batches of TmNi5 has been measured along the crystallographic a, b and c directions up to 38 T at 1.5 K. A small high-field susceptibili ty chi(HF) = 6.3 x 10(-3) mu(B)/T f.u. was observed along the easy c-a xis. The magnetization measured along both a- and b-axis shows hystere sis and a magnetic transition between 5 and 15 T. Specific heat has be en measured from 1.5 to 160 K. A lambda-type peak found at about 3.7 K originates from the magnetic system.