High magnetic field-induced insulating phase in an organic conductor

TL;DR

This study investigates a high magnetic field-induced transition in organic conductors, revealing a bulk thermodynamic phase change from metallic to insulating state above 36 T, differing from typical field-induced transitions.

Contribution

It reports the discovery of a first-order phase transition in organic conductors at high magnetic fields, characterized by unique thermodynamic behavior.

Findings

Transition occurs above 36 T

Transition is a bulk thermodynamic phenomenon

Transition differs from conventional field-induced phases

Abstract

We report electrical transport, skin depth, and magnetocaloric measurements in the tau-series of organic conductors at very high magnetic fields. Above 36 T these materials show a magnetic field induced first order phase transition from a metallic to an insulating state. The transition, which is a bulk thermodynamic phenomenon, does not follow the conventional prescription for field induced phase transitions in organic conductors.