Phase Bifurcation and Quantum Fluctuations in Sr3Ru2O7

Abstract

The bilayer ruthenate Sr_3Ru_2O_7 has been cited as a textbook example of itinerant metamagnetic quantum criticality. However, recent studies of the ultra-pure system have revealed striking anomalies in magnetism and transport in the vicinity of the quantum critical point. Drawing on new experimental data, we propose that the anomalous phase behavior can be accommodated by a mechanism which relies on the effects of strong magnetoelastic coupling. We argue that the phenomenological theory identified here is more generic and raises the possibility of quantum tricritical behaviour.

5pages, 4 figures. Text revised for clarity and some more experimental data included

References in corpus (7)

• Metamagnetism and critical fluctuations in high quality single crystals of the bilayer ruthenate Sr3Ru2O7
• Metamagnetic Quantum Criticality
• Angular dependence of the magnetic susceptibility in the itinerant metamagnet Sr3Ru2O7
• High Field Studies of the Hidden Order Transition in URu${}_2$Si${}_2$
• Multiple first-order metamagnetic transitions and quantum oscillations in ultrapure
• Itinerant metamagnetism of CeRu2Si2 : bringing out the dead. Comparison with the new Sr3Ru2O7 case
• Re-entrant hidden order at a metamagnetic quantum critical end point

Cited by in corpus (27)

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• Tricriticalities and Quantum Phases in Spin-Orbit-Coupled Spin-$1$ Bose Gases
• Proximity of Iron Pnictide Superconductors to a Quantum Tricritical Point
• Unconventional metamagnetic electron states in orbital band systems
• Fluctuating Stripes in Strongly Correlated Electron Systems and the Nematic-Smectic Quantum Phase Transition
• Spin Fluctuation Theory for Quantum Tricritical Point Arising in Proximity to First-Order Phase Transitions: Applications to Heavy-Fermion Systems, YbRh2Si2, CeRu2Si2, and beta-YbAlB4
• Quantum criticality and the formation of a putative electronic liquid crystal in Sr3Ru2O7
• YbRh2Si2: Quantum tricritical behavior in itinerant electron systems
• Quasiparticle Interference in the Unconventional Metamagnetic Compound Sr${}_3$Ru${}_2$O${}_7$
• Effect of magnetic field on spontaneous Fermi surface symmetry breaking
• Quantum Tricriticality in Antiferromagnetic Ising Model with Transverse Field: A Quantum Monte-Carlo Study
• Quantum oscillations in the anomalous phase in Sr3Ru2O7
• Nematic domains and resistivity in an itinerant metamagnet coupled to a lattice
• Magnetic domain formation in itinerant metamagnets
• Orbital-dependent metamagnetic response in Sr4Ru3O10
• Finite temperature crossovers near quantum tricritical points in metals
• Renormalized phi^6 model for quantum phase transitions in systems of itinerant fermions
• Competing magnetic fluctuations in Sr3Ru2O7 probed by Ti doping
• Suppression of the Shastry-Sutherland phase in Ce${}_2$Pd${}_2$Sn at a field induced critical point
• Microscopic Theory of the Thermodynamic Properties of Sr${}_3$Ru${}_2$O${}_7$
• Quantum tricriticality in transverse Ising-like systems
• Quantum interface unbinding transitions
• Fermi surface instabilities at finite Temperature
• Nature of quantum criticality in the Ising ferromagnet TbV${}_6$Sn${}_6$
• Generalized susceptibilities and Landau parameters for anisotropic Fermi liquids