P. Lejay

TL;DR: By performing combined resistivity and calorimetric experiments under pressure, this paper determined a precise temperature-pressure $(T,P)$ phase diagram of the heavy fermion compound.

TL;DR: The magnetic phase diagram of powdered samples has been studied as a function of the magnetic field in the low doping range in this article, where the system becomes fully ferromagnetic below $170 \mathrm{K} but remains insulating down to the lowest temperature.

TL;DR: Specific-heat measurements have been performed on a single-crystalline sample of the heavy-fermion compound in strong magnetic fields up to 20 T along the tetragonal axis in the temperature interval 1.5T30 K and the data have been analyzed using a simple single-resonance-level model.

TL;DR: Magnetization measurements performed below 1 K on a single-crystalline sample of the heavy fermion compound CeRu2Si2 are reported in this paper, where the field variation of the linear term of the specific heat γ derived from these data (via a Maxwell relation) exhibits a large peak at the metamagnetic-like transition at B* (=7.7 atT → 0).

TL;DR: In this article, a spin-1/2 Ising-like quasi-one dimensional antiferromagnet was subjected to a uniform magnetic field transverse to the Ising axis.