Pauli and orbital effects of magnetic field on charge density waves

TL;DR

This paper investigates how magnetic fields influence charge density waves in quasi-one-dimensional systems, revealing phase transitions, field-induced states, and magic angle effects on critical temperature.

Contribution

It introduces a comprehensive mean field phase diagram considering both Pauli and orbital magnetic effects, highlighting new magnetic field-induced phenomena in CDWs.

Findings

Magnetic field causes wave vector shifts in CDWs.

Magnetic field can stabilize new charge density wave states.

Critical temperature peaks at specific magic angles.

Abstract

Taking into account both Pauli and orbital effects of external magnetic field we compute the mean field phase diagram for charge density waves in quasi-one-dimensional electronic systems. The magnetic field can cause transitions to CDW states with two types of the shifts of wave vector from its zero-field value. It can also stabilize the field-induced charge density wave. Furthermore, the critical temperature shows peaks at a new kind of magic angles.