Magnetic and Structural properties of Eu3Ir4Sn13-xGax

Abstract

The intermetallic compound Eu 3 Ir 4 Sn 13 presents a peculiar structural distortion at T*~57K and an antiferromagnetic transition at T N~1 1K. [1] Previous studies have shown that, under hydrostatic pressure T* increases and T N barely changes. [2] This structural transition is present in many Sn-based 3-4-13 compounds, some of which present superconducting states that are favored under pressure. In this work, we will show how Ga-substitution affects both transitions and compare with the results under hydrostatic pressure. Furthermore, we will study if the change in the carrier density due to the chemical substitution affects the electronic properties of the compound.