Spin-Peierls transition in NaV2O5 in high magnetic fields

TL;DR

This study explores how high magnetic fields affect the spin-Peierls transition in NaV2O5, revealing a weak dependence on the field and proposing a charge ordering mechanism involving singlet formation.

Contribution

It presents new insights into the magnetic field dependence of the spin-Peierls transition and suggests a charge ordering mechanism as a novel explanation.

Findings

Transition temperature varies weakly with magnetic field

Charge ordering accompanied by singlet formation is consistent with observations

Proposes a new mechanism for spin-Peierls state formation

Abstract

We investigate the magnetic field dependence of the spin-Peierls transition in NaV$_2$O$_5$ in the field range 16T-30T. The transition temperature exhibits a very weak variation with the field, suggesting a novel mechanism for the formation of the spin-Peierls state. We argue that a charge ordering transition accompanied by singlet formation is consistent with our observations.