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.

References in corpus (4)

• Tricritical point and wing structure in the itinerant ferromagnet UGe2
• Quantum and Topological Criticalities of Lifshitz Transition in Two-Dimensional Correlated Electron Systems
• Quantum Metamagnetic Transitions Induced by Changes in Fermi-Surface Topology -Applications to a Weak Itinerant-Electron Ferromagnet;ZrZn_2
• Third law of thermodynamics and the shape of the phase diagram for systems with a first-order quantum phase transition

Cited by in corpus (5)

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• 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