# Giant Magnetoelastic-Coupling Driven Spin-Lattice Liquid State in Molybdate Pyrochlores

## TL;DR

This paper introduces a novel spin-lattice liquid state in molybdate pyrochlores driven by strong magnetoelastic coupling, explaining experimental observations in Y$_2$Mo$_2$O$_7$ and expanding understanding of disordered magnetic systems.

## Contribution

It proposes the existence of a spin-lattice liquid state in molybdate pyrochlores caused by giant magnetoelastic effects, supported by microscopic analysis.

## Key findings

- Identification of a spin-lattice liquid state in molybdate pyrochlores.
- Explanation of experimental features in Y$_2$Mo$_2$O$_7$.
- Demonstration of strong spin-lattice coupling effects.

## Abstract

We propose the idea of a spin-lattice liquid, in which spin and lattice degrees of freedom are strongly coupled and remain disordered and fluctuating down to low temperatures. We show that such a state arises naturally from a microscopic analysis of a class of molybdate pyrochlore compounds, and is driven by a giant magnetoelastic effect. Finally, we argue that this could explain some of the experimental features of Y$_2$Mo$_2$O$_7$.