The ferromagnetic state of the itinerant compound UFe₂ correlated with a peak in the density of states at the Fermi level is well known to be strongly suppressed by replacing Fe with other 3d elements. To separate the effect of change in filling of the band from that of its deformation under alloying, the magnetic susceptibility of both quasi-binary alloys U(Fe_1-xMe_x)₂ (Me = Mn, Co) with a varying number of valence electrons and isoelectronic quasi-ternary alloys U(Fe_1-xT_x)₂, U(Fe_0,9-xMn_0,1T_x2 and U(Fe_0,9-xCo_0,1T_x)₂ (T = Mn_0,5Co_0,5) was studied in the temperature range 4,2 K <= T <= 300 K. Both the effects were found to play important roles in suppression of the ferromagnetic state in UFe₂-based alloys. In addition, the magnetic susceptibility of U(Fe_1-xMn_x)₂ and U(Fe_1-xT_x)₂ alloys and UCo₂ compound have been studied under pressure up to 4 kbar at T = 78 and 293 K. The volume dependence of the exchange enhancement in spin paramagnetism of the UFe₂ compound and its alloys has been derived from analysis of the pressure effects in the framework of the Stoner model.

• Панфілов Анатолій Сергійович (фізико-математичні науки)

  Якщо, ви не знайшли інформацію про автора(ів) публікації, маєте бажання виправити або відобразити більш докладну інформацію про науковців України запрошуємо заповнити "Анкету науковця"