journal article·2013-05Open access

Quasi-critical fluctuations: a novel state of matter?

Erminald Bertel

Journal of Nanoparticle Research· Volume 15· Issue 5

Abstract

Quasi-critical fluctuations occur close to critical points or close to continuous phase transitions. In three-dimensional systems, precision tuning is required to access the fluctuation regime. Lowering the dimensionality enhances the parameter space for quasi-critical fluctuations considerably. This enables one to make use of novel properties emerging in fluctuating systems, such as giant susceptibilities, Casimir forces or novel quasi-particle interactions. Examples are discussed ranging from simple metal-adsorbate systems to unconventional superconductivity in iron-based superconductors.
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Research context

OpenAlex topics: Iron-based superconductors research · Physics of Superconductivity and Magnetism · Advanced Condensed Matter Physics

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