Constraints on the merging of the transition lines at the tricritical point in a wing-structure phase diagram

Abstract

We consider the phase diagram of a ferromagnetic system driven to a quantum phase transition with a tuning parameter $p$. Before being suppressed, the transition becomes of the first order at a tricritical point, from which wings emerge under application of the magnetic field $H$ in the $T$-$p$-$H$ phase diagram. We show that the edge of the wings merge with tangent slopes at the tricritical point.

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Cited by in corpus (6)

• Tricritical wings and modulated magnetic phases in LaCrGe${}_3$ under pressure
• Formation of short-range magnetic order and avoided ferromagnetic quantum criticality in pressurized LaCrGe${}_3$
• Quantum tricritical point in the temperature-pressure-magnetic field phase diagram of CeTiGe${}_3$
• Wing structure in the phase diagram of the Ising Ferromagnet URhGe close to its tricritical point investigated by angle-resolved magnetization measurements
• The multiple symmetry sustaining phase transitions of spin ice
• Metamagnetism and tricriticalilty in heavy-fermion ferromagnet URhGe