Fermi Surface and Magnetic Properties of Antiferromagnet EuBi^sub 3

EuBi3 with the AuCu3-type cubic structure is known to be a Eu-divalent antiferromagnet with the Neel temperature ... K. We succeeded in growing a high-quality single crystal by the Bi self-flux method. The magnetization at 1.3 K for the magnetic field along the ... direction increases linearly as a function of magnetic field, and saturates at a critical field Hc=225 kOe, reaching a saturated magnetic moment of 7 ...B/Eu. Hc is well explained by the magnetic exchange interaction based on a two-sublattice model, using the simple relation ..., namely, ..., where ... is the paramagnetic Curie temperature ... K. The present anti ferromagnetic state is found to be stable under pressures up to 8 GPa, where the N...el temperature increases with increasing pressure, being TN=16.5 K at 8 GPa. From the results of de Haas-van Alphen experiments on EuBi3 and energy band calculations for the non-4f reference compound SrBi3, the Fermi surface is found to consist of three types of nearly spherical Fermi surfaces. (ProQuest: ... denotes formulae/symbols omitted.)