Pressure effect on magnetic susceptibility of SmS in semiconducting phase: experimental study

TL;DR

This study experimentally investigates how hydrostatic pressure influences the magnetic susceptibility of semiconducting SmS, revealing a significant positive and temperature-dependent effect up to 2 kbar.

Contribution

It provides new experimental data on pressure effects on SmS's magnetic susceptibility, with detailed measurements at different temperatures and pressures.

Findings

Pressure increases magnetic susceptibility of SmS.

Effect is strongly temperature dependent.

Quantitative pressure derivatives are provided.

Abstract

Magnetic susceptibility $\chi$ of the polycrystalline sample of samarium monosulfide was measured as a function of the hydrostatic pressure $P$ up to 2 kbar at liquid nitrogen and room temperatures using a pendulum-type magnetometer. A pronounced magnitude of the pressure effect is found to be positive in sign and strongly temperature dependent: the pressure derivatives of $\chi$, d\,ln$\chi$/d$P$, are $6.3\pm0.5$ and $14.2\pm1$ Mbar$^{-1}$ at 300 and 78 K, respectively. The obtained experimental results are discussed within phenomenological approaches.