Pressure induced superconductivity in the charge density wave compound TbTe3

TL;DR

This study investigates how applying high pressure to TbTe3 influences its electronic phases, revealing the emergence of superconductivity alongside charge density wave and antiferromagnetic orders, with a maximum transition temperature of about 3.5 K.

Contribution

It demonstrates pressure-induced superconductivity in TbTe3 and maps its complex phase diagram involving multiple competing orders.

Findings

Superconductivity appears near 75 kbar with a maximum T_c of ~3.5 K.

Pressure suppresses charge density wave order while promoting superconductivity.

TbTe3 exhibits a rich interplay of electronic phases under high pressure.

Abstract

A series of high-pressure resistivity measurements on single crystals of TbTe3 reveal a complex phase diagram involving the interplay of superconducting, antiferromagnetic and charge density wave orders. The onset of superconductivity reaches a maximum of ~ 3.5 K (onset) near 75 kbar.