# Pressure induced change in the electronic state of Ta$_4$Pd$_3$Te$_{16}$

## TL;DR

This study investigates how applying pressure up to 16.4 kbar affects the superconducting and electronic properties of Ta$_4$Pd$_3$Te$_{16}$, revealing anomalies around 2-4 kbar linked to changes in the density of states.

## Contribution

It provides the first detailed pressure-dependent measurements of superconducting and normal state properties of Ta$_4$Pd$_3$Te$_{16}$ highlighting a critical pressure range with notable electronic changes.

## Key findings

- Maximum in $T_c$ and $H_{c2}(0)$ at 2-4 kbar
- Minimum in low-temperature resistivity at 2-4 kbar
- Anomalies linked to changes in the density of states

## Abstract

We present measurements of superconducting transition temperature, resistivity, magnetoresistivity and temperature dependence of the upper critical field of Ta$_4$Pd$_3$Te$_{16}$ under pressures up to 16.4 kbar. All measured properties have an anomaly at $\sim 2 - 4$ kbar pressure range, in particular there is a maximum in $T_c$ and upper critical field, $H_{c2}(0)$, and minimum in low temperature, normal state resistivity. Qualitatively, the data can be explained considering the density of state at the Fermi level as a dominant parameter.