TL;DR
This paper reviews the magnetic properties of nanostructures like small particles, thin films, and tunnel junctions, highlighting how reduced dimensions influence electronic states, magnetization, and quantum effects such as the Aharonov-Bohm phenomenon.
Contribution
It provides a comprehensive overview of magnetic behaviors in various nanostructures, emphasizing the effects of reduced atomic coordination and quantum phenomena in tunnel systems.
Findings
Magnetic moments are altered in small clusters and thin films.
Tunnel currents exhibit unique behaviors influenced by quantum effects.
Interactions between magnetism, spin currents, and superconductivity are significant in tunnel junctions.
Abstract
Characteristic results of magnetism in small particles and thin films are presented. As a consequence of the reduced atomic coordination in small clusters and thin films the electronic states and density of states modify. Thus magnetic moments and magnetization are affected. In tunnel junctions interplay of magnetism, spin currents and superconductivity are of particular interest. Results are given for single transition metal clusters, cluster ensembles, thin films and tunnel systems. Interesting behavior of tunnel currents and currents induced by Aharonov-Bohm effect into mesoscopic rings etc. are discussed.
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