Suppression of Magnetic Order by Pressure in BaFe2As2

TL;DR

This study investigates how applying high pressure affects the magnetic order in BaFe2As2, revealing that the spin-density wave anomaly remains stable despite pressure changes.

Contribution

It provides the first detailed phase diagram of BaFe2As2 under high pressure using resistivity and NMR measurements, showing the robustness of magnetic order.

Findings

SDW anomaly persists under high pressure

Resistivity and NMR measurements confirm phase stability

Pressure does not suppress magnetic order significantly

Abstract

We performed the dc resistivity and the ZF 75As-NMR measurement of BaFe2As2 under high pressure. The T-P phase diagram of BaFe2As2 determined from resistivity anomalies and the ZF 75As-NMR clearly revealed that the SDW anomaly is quite robust against P.