Single Crystal Growth and Magnetic Characterization of RNiSi3 (R = Dy, Ho)

Complex magnetic phases in polar tetragonal intermetallic NdCoGe$_3$

“…For example, EuNiGe 3 has two magnetic phase transitions at zero-field and the lowest temperature phase is believed to be a modulated phase with a constant moment 45,67 . The magnetic structures of a large number of compounds in this family of materials have not yet been determined [69][70][71][72][73] .…”

Magnetic structure and magnetoelastic coupling of GdNiSi3 and TbNiSi3

“…The evolution of the magnetic properties within the RNiSi 3 series as R is varied from Gd to Yb is very interesting and deserves an individualized description. The temperature-and field-dependent anisotropic bulk magnetization of the compounds with R = Gd-Tm were studied in detail [11,12]. GdNiSi 3 (T N = 22.2 K) is found to have an easy AFM axis along a with a spin-flop transition for a magnetic field along a of B a = 2.7 T; TbNiSi 3 (T N = 33.2 K) also shows an AFM axis along a, display-ing a series of step-like metamagnetic transitions with B a 4 T and nearly reaching ferromagnetic saturation for B a ∼ 6 T. DyNiSi 3 , also with an AFM axis along a, shows two close magnetic transitions, at 22.7 and 23.7 K and metamagnetic transitions towards a ferromagnetic phase for B a ∼ 2.2−2.7 T. Remarkably, HoNiSi 3 appears to show a component-separated magnetic transition, with two distinct ordering temperatures, one for the AFM axis along a (T a N = 10.0 K) and another for the AFM axis along c (T c N ∼ 6 K), also showing field induced metamagnetic transitions towards a partial (i.e., non-saturated) ferromagnetic state for B a = B c ∼ 1.2 − 1.6 T. ErNiSi 3 (T N = 3.5 K) shows a dominating AFM direction along b with another significant AFM component to the susceptibility along either a or c, displaying metamagnetic transitions towards a partial ferromagnetic state for B ∼ 1 − 2 T. TmNiSi 3 (T N = 2.5 K) shows an AFM direction along b and no clear sign of metamagnetic transitions with field at 2 K. Finally, the magnetic end-member YbNiSi 3 (T N = 5.1 K) was thoroughly studied [10,13,14], with the AFM axis being along b.…”