Spin crossover: the quantum phase transition induced by high pressure

TL;DR

This paper explores how high pressure induces a quantum phase transition in spin crossover systems, linking the Berry phase's topological properties to the transition's order parameter.

Contribution

It establishes a novel connection between the Berry phase's topological nature and spin crossover transitions under high pressure.

Findings

Berry phase has a topological origin in spin crossover.

Geometric phase can serve as an order parameter for the transition.

The study provides a new perspective on quantum phase transitions in condensed matter.

Abstract

The relationship is established between the Berry phase and spin crossover in condensed matter physics induced by high pressure. It is shown that the geometric phase has topological origin and can be considered as the order parameter for such transition.