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

Sophie de Brion (1) , Markus Bonda (2) , Céline Darie (3) , Pierre Bordet (3) , Ilya Sheikin (2)

1 NEEL - MagSup - Magnétisme et Supraconductivité
2 LCMI-GHMFL - Laboratoire des champs magnétiques intenses
3 NEEL - MRS - Matériaux, Rayonnements, Structure

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.

Domaines: Electrons fortement corrélés [cond-mat.str-el]

Sophie de Brion, Markus Bonda, Céline Darie, Pierre Bordet, Ilya Sheikin. Magnetic phase diagram of the S=1/2 triangular layered compound NaNiO2: a single crystal study. Journal of Physics: Condensed Matter, 2010, 22 (12), pp.126001. ⟨10.1088/0953-8984/22/12/126001⟩. ⟨hal-00459169⟩