Synthesis, Structure and Magnetism of ErCoIn₅

Abstract

A new member of the LnMIn 5 family, ErCoIn 5 , has been synthesized by a flux-growth method. The structure of ErCoIn 5 was determined by single crystal X-ray diffraction. It crystallizes in the tetragonal space group P4/mmm, Z = 1, with lattice parameters a = 4.5400(4) and c = 7.3970(7) Å, and V = 152.46(2) Å 3 . Electrical resistivity data show metallic behavior. Magnetic susceptibility measurements show this compound to be antiferromagnetic with T N = 5.1 K. We compare these experimental results with those of LaCoIn 5 in an effort to better understand the effect of the structural trends observed on the transport and magnetic properties.

Low-temperature physical properties of GdCoIn$_5$

“…9 When substituting Ce by other elements along the rare earth series, the 4f electrons rapidly lose their itinerant character and become localized originating robust magnetic ground states when R = Nd, Sm, Tb, Dy, Ho, Er and Tm. [10][11][12][13][14] PrCoIn 5 13 and YbCoIn 5 , 14 on the other hand, remain paramagnetic in the whole temperature range while no information about EuCoIn 5 is available.…”