Monotonic growth of interlayer magnetoresistance in strong magnetic field in very anisotropic layered metals

TL;DR

This paper demonstrates that in highly anisotropic layered metals, the interlayer magnetoresistance monotonically increases with strong magnetic fields, challenging standard theories and highlighting the role of coherent tunnelling.

Contribution

It reveals a monotonic decrease in interlayer conductivity under high magnetic fields, contradicting existing theories, specifically in very anisotropic quasi-two-dimensional metals.

Findings

Interlayer conductivity decreases monotonically with magnetic field.

The effect occurs when interlayer transfer integral is less than Landau level separation.

Results challenge standard theoretical predictions.

Abstract

It is shown, that the monotonic part of interlayer electronic conductivity strongly decreases in high magnetic field perpendicular to the conducting layers. We consider only the coherent interlayer tunnelling, and the obtained result strongly contradicts the standard theory. This effect appears in very anisotropic layered quasi-two-dimensional metals, when the interlayer transfer integral is less than the Landau level separation.