Decorated Ising nanoparticles with high critical temperature. (1st February 2020)

• Record Type: Journal Article
• Authors: Kaneyoshi, T.
• Is Part Of: Phase transitions. Volume 93:Number 2(2020)
• Page Start: 263
• Page End: 273
• Publication Date: 2020-02-01
• Subjects: Phase diagrams -- magnetizations -- nanoparticles -- decoration; Phase transformations (Statistical physics) -- Periodicals; 530.47405
• DOI: 10.1080/01411594.2020.1712720
• Languages: English
• ISSNs: 0141-1594

Abstract

ABSTRACT: The phase transitions of two magnetic nanoparticles and their decorated nanoparticles are examined by the effective-field theory with correlations. They are consisted of two isolated paramagnetic Ising nanoparticles coupled by an exchange interaction. It is discussed whether a ferromagnetic nanoparticle with a transition temperature TC ( N ) larger than that ( TC ( B )) of a bulk ferromagnetic material is possible.