Work

Phase Bifurcation and Quantum Fluctuations in Sr3Ru2O7

Year: 2005

Type: article

Abstract: The bilayer ruthenate Sr3Ru2O7 has been cited as a textbook example of itinerant metamagnetic quantum criticality. However, recent studies of the ultrapure system have revealed striking anomalies in magnetism and transport in the vicinity of the quantum critical point. Drawing on fresh experimental data, we show that the complex phase behavior reported here can be fully accommodated within the framework of a simple Landau theory. We discuss the potential physical mechanisms that underpin the phenomenology, and assess the capacity of the ruthenate system to realize quantum tricritial behavior.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.95.086402

Authors: A. G. Green, S. A. Grigera, R. A. Borzi, A. P. Mackenzie, R. S. Perry, B. D. Simons

Institutions: University of St Andrews, Kyoto University, University of Cambridge

Language: Latvian

Topic: Magnetic and transport properties of perovskites and related materials

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funder: Engineering and Physical Sciences Research Council

Award: G8012472167