Magnetic properties of doped GdI2

Abstract

Motivated by the recent experimental studies on layered ferromagnetic metallic system GdI2 and its doped variant GdI2Hx we develop a model to understand their ground state magnetic phase diagram. Based on first principle electronic structure calculations we write down a phenomenological model and solve it under certain approximations to obtain the ground state energy. In the process we work out the phase diagram of the correlated double exchange model on a triangular lattice for the specific band structure at hand.

arXiv comment13 pages, 5 figures, corrected typos

References in corpus (4)

• Colossal Magnetoresistant Materials: The Key Role of Phase Separation
• Ferromagnetism in the Hubbard model: instability of the Nagaoka state on the triangular, honeycomb and kagome lattices
• Spin fluctuations in the quasi-two dimensional Heisenberg ferromagnet GdI_2 studied by Electron Spin Resonance
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Cited by in corpus (9)

• GdI_2: A New Ferromagnetic Excitonic Solid?
• An extended Falicov-Kimball model on a triangular lattice
• Thermodynamic studies of the two dimensional Falicov-Kimball model on a triangular lattice
• Study of ground state phases for spin-1/2 Falicov-Kimball model on a triangular lattice
• Phase transitions in a spinless, extended Falicov-Kimball model on the triangular lattice
• Orbital Magnetic Field Driven Metal-Insulator Transition in Spinless Extended Falicov-Kimball Model on A Triangular Lattice
• Metal-Insulator Transition and Band Magnetism in the Spin-$1/2$ Falicov-Kimball Model on A Triangular Lattice with External Magnetic Field
• The Role of Intra- and Inter-site exchange correlations in the Extended Falicov-Kimball Model on a Triangular Lattice
• A study of long range order in certain two-dimensional frustrated lattices