Magnetic phase diagram of the S=1/2 triangular layered compound NaNiO2: a single crystal study

TL;DR

This study maps the magnetic phase diagram of NaNiO2, a triangular layered compound, revealing five distinct phases and spin reorientations influenced by temperature and magnetic field, based on single crystal torque measurements.

Contribution

First detailed magnetic phase diagram of NaNiO2 derived from single crystal torque measurements, highlighting multiple phases and spin reorientations.

Findings

Identified five magnetic phases depending on temperature and field.

Discovered several spin reorientations linked to magnetic anisotropies.

Mapped phase boundaries from 4 K to 300 K and 0 to 22 T.

Abstract

Using magnetic torque measurement on a NaNiO2 single crystal, we have established the magnetic phase diagram of this triangular compound. It presents 5 different phases depending on the temperature (4 K - 300 K) and magnetic field (0 - 22 T) revealing several spin reorientations coupled to different magnetic anisotropies.