Magnetic-field tuning of the low-temperature state of YbNiSi3

摘要: We present detailed data from low-temperature magnetization, magnetoresistance, and specific heat measurements on single-crystal YbNiSi3 with the magnetic field applied along easy axis, H b. An initially antiferromagnetic ground state changes into a field-stabilized metamagnetic phase at 16 kOe T→0 . On further increase of field, order is suppressed 85 kOe. No non-Fermiliquid-like power law was observed in resistivity vicinity critical for T 0.4 K. Heat capacity suggest that splits nearly degenerate crystal-electric-field levels form zero-field YbNiSi3. The functional behaviors are discussed comparison those few other stoichiometric heavy fermion compounds established field-induced quantum points.