# Anisotropic thermal transport in magnetic intercalates Fe$_{x}$TiS$_2$

## TL;DR

This study investigates how iron intercalation affects the anisotropic thermal transport properties of TiS$_2$, revealing minimal lattice perturbation and providing insights consistent with ab initio calculations.

## Contribution

It provides the first detailed analysis of thermal transport in Fe$_{x}$TiS$_2$ and correlates experimental findings with theoretical calculations.

## Key findings

- Iron intercalation does not induce long-range order.
- Thermal conductivity trends align with ab initio models.
- Intercalation minimally perturbs the TiS$_2$ lattice.

## Abstract

We present a study of the of thermal transport in thin single crystals of iron-intercalated titanium disulphide, Fe$_{x}$TiS$_2$ for $0\leq x \leq 0.20$. We determine the distribution of intercalants using high-resolution crystallographic and magnetic measurements, confirming the insertion of Fe without long-range ordering. We find that iron intercalation perturbs the lattice very little, and suppresses the tendency of TiS$_2$ to self-intercalate with excess Ti. We observe trends in the thermal conductivity that are compatible with our ab initio calculations of thermal transport in perfectly stoichiometric TiS$_2$.