Abstract

The conductivity and the tunneling density of states of disordered itinerant electrons in the vicinity of a ferromagnetic transition at low temperature are discussed. Critical fluctuations lead to nonanalytic frequency and temperature dependencies that are distinct from the usual long-time tail effects in a disordered Fermi liquid. The crossover between these two types of behavior is proposed as an experimental check of recent theories of the quantum ferromagnetic critical behavior. In addition, the quasiparticle properties at criticality are shown to be those of a marginal Fermi liquid.

Department(s)

Physics

Keywords and Phrases

Correlation methods; Electric conductivity; Electron tunneling; Mathematical models; Quantum theory; Spatial variables measurement; Transport properties; Marginal-Fermi-liquid effects; Transport anomalies; Ferromagnetic materials

International Standard Serial Number (ISSN)

0031-9007

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2000 American Institute of Physics (AIP), All rights reserved.

Included in

Physics Commons

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