# Evolution of Magnetic Order from the Localized to the Itinerant Limit

## TL;DR

This paper investigates how magnetic order evolves in Nd(1-x)Ce(x)CoIn(5) as electrons transition from localized to itinerant, revealing two distinct magnetic phases influenced by charge delocalization and band hybridization.

## Contribution

It provides new insights into the magnetic phase evolution in heavy-fermion systems across the localized-itinerant transition, highlighting two magnetic ground states.

## Key findings

- Two magnetic ground states identified within the heavy-fermion phase.
- Magnetic properties are affected by charge delocalization and anisotropic band hybridization.
- Magnetic phases are detached from the unconventional superconductivity.

## Abstract

Quantum materials that feature magnetic long-range order often reveal complex phase diagrams when localized electrons become mobile. In many materials magnetism is rapidly suppressed as electronic charges dissolve into the conduction band. In materials where magnetism persists, it is unclear how the magnetic properties are affected. Here we study the evolution of the magnetic structure in Nd(1-x)Ce(x)CoIn(5) from the localized to the highly itinerant limit. We observe two magnetic ground states inside a heavy-fermion phase that are detached from unconventional superconductivity. The presence of two different magnetic phases provides evidence that increasing charge delocalization affects the magnetic interactions via anisotropic band hybridization.