Absence of field-induced charge-density wave states in (Per)$_2$Pt(mnt)$_2$

TL;DR

This study refutes the existence of field-induced charge-density waves in (Per)$_2$Pt(mnt)$_2$, demonstrating that magnetotransport data instead indicate conduction dominated by sliding CDW modes, not FICDWs.

Contribution

The paper provides a quantitative analysis that disproves the previously suggested FICDWs in (Per)$_2$Pt(mnt)$_2$, clarifying the conduction mechanism at low temperatures.

Findings

Absence of orbital quantization in magnetotransport data.

Conduction dominated by sliding CDW collective mode.

Disproof of field-induced charge-density waves in the material.

Abstract

Graf {\it et al.} [Phys. Rev. Lett. {\bf 93} 076406 (2004)] recently attributed features in the magnetic-field-dependent longitudinal resistance of (Per)$_2$Pt(mnt)$_2$ to a cascade of field-induced charge-density waves (FICDWs). Here we show that a quantitative magnetotransport analysis reveals orbital quantization to be absent, disproving the presence of FICDWs. Our data show that the conduction is instead dominated by the sliding CDW collective mode at low temperatures.