Existence of a New Quantum Phase in Exactly Solvable Antiferromagnetic Ising-Heisenberg Models on Planar Lattices

TL;DR

This paper predicts and analyzes a new quantum dimerized phase in exactly solvable antiferromagnetic Ising-Heisenberg models on planar lattices, providing exact results and potential applications to molecular magnets.

Contribution

It introduces a new quantum phase in exactly solvable models and offers detailed analysis of its properties and phase boundaries.

Findings

Existence of a new quantum dimerized phase

Exact results for phase boundaries and correlations

Potential relevance to molecular magnets

Abstract

In this work we deal with doubly decorated Ising-Heisenberg models on planar lattices. Applying the generalized decoration-iteration transformation we obtain exact results for the antiferromagnetic version of the model. The existence of a new quantum dimerized phase is predicted and its physical properties are studied and analyzed. Particular attention has been paid to the investigation of the phase boundaries, pair-correlation functions and specific heat. A possible application of the present work to some molecular magnets is also drawn.