Magnetic Field Dependent Behavior of the CDW ground state in Per2M(mnt)2 (M = Au, Pt)

TL;DR

This study investigates how magnetic fields influence the charge density wave ground state in Per2M(mnt)2 organic conductors, revealing new high-field phases through various transport measurements.

Contribution

It provides new experimental insights into the high-field behavior and phase transitions of Per2M(mnt)2 compounds with different counter ions.

Findings

Charge density wave suppressed around 20-30 T

Emergence of new high-field ground states

Transport measurements reveal phase transitions

Abstract

The Per2M(mnt)2 class of organic conductors exhibit a charge density wave (CDW) ground state below about 12 K, which may be suppressed in magnetic fields of order 20 to 30 T. However, for both cases of counter ion M(mnt)2 species studied (M = Au (zero spin) and M = Pt (spin 1/2)), new high field ground states evolve for further increases in magnetic field. We report recent investigations where thermopower, Hall effect, high pressure and additional transport measurements have been carried out to explore these new high field phases.