Structural investigations on $\epsilon$-FeGe at high pressure and low temperature

TL;DR

This study investigates the structural behavior of epsilon-FeGe under high pressure and low temperature, revealing a possible magnetic phase transition through diffraction analysis and structural parameter measurements.

Contribution

It provides detailed structural data of epsilon-FeGe at various pressures and temperatures, identifying a potential magnetic transition related to structural changes.

Findings

Discontinuous change in Fe-Ge interatomic distance at high pressure

Evidence of a symmetry-conserving transition

Possible link to magnetic phase boundary

Abstract

The structural parameters of $\epsilon$-FeGe have been determined at ambient conditions using single crystal refinement. Powder diffraction have been carried out to determine structural properties and compressibility for pressures up to 30 GPa and temperatures as low as 82 K. The discontinuous change in the pressure dependence of the shortest Fe-Ge interatomic distance might be interpreted as a symmetry-conserving transition and seems to be related to a magnetic phase boundary line.