FeTe as a candidate material for new iron-based superconductor

TL;DR

This paper investigates the pressure effects on FeTe's resistivity, revealing structural similarities to FeSe and potential for superconductivity under certain conditions, despite FeTe not being superconducting at ambient pressure.

Contribution

It provides new insights into how pressure influences FeTe's resistivity and structural properties, suggesting pathways to induce superconductivity.

Findings

Resistivity decreases with pressure at room temperature.

Anomaly in resistivity shifts to lower temperature under pressure.

FeTe's structure is analogous to superconducting FeSe.

Abstract

Tetragonal FeSe is a superconductor with a transition temperature Tc of 8 K and shows a huge enhancement of Tc with applying pressure. Tetragonal FeTe has a structure very analogous to superconducting FeSe, but does not show superconducting transition. We investigated the pressure effect of resistivity on FeTe. The resistivity at room temperature decreased with increasing pressure. An anomaly in resistivity around 80 K shifted towards a lower temperature with increasing pressure.