Organic conductors in high magnetic fields: model systems for quantum oscillations physics

TL;DR

Organic conductors, despite their complex structures, exhibit simple Fermi surfaces that make them ideal for studying quantum oscillations and magnetic breakdown phenomena in high magnetic fields.

Contribution

This paper reviews the use of organic conductors as model systems for understanding quantum oscillations and magnetic breakdown in low-symmetry, multiband electronic structures.

Findings

Most compounds agree with band structure calculations

Organic conductors show simple Fermi surfaces despite complex structures

Suitable for studying magnetic quantum oscillations

Abstract

Even though organic conductors have complicated crystalline structure with low symmetry and large unit cell, band structure calculations predict multiband quasi-two dimensional electronic structure yielding very simple Fermi surface in most cases. Although few puzzling experimental results are observed, data of numerous compounds are in agreement with calculations which make them suitable systems for studying magnetic quantum oscillations in networks of orbits connected by magnetic breakdown. The state of the art of this problematics is reviewed.