Itinerant-Electron Magnetism and Spin Fluctuations—Aspects of Theories and Experiments

Kazuyoshi Yoshimura ()
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Kazuyoshi Yoshimura: Kyoto University

Chapter Chapter 13 in Creative Complex Systems, 2021, pp 189-213 from Springer

Abstract: Abstract This chapter reviews the history of magnetism, which is one of the main streams of solid-state physicsSolid-state physics and quantum physicsQuantum physics, and developments of itinerant-electron magnetism and exotic superconductivityExotic superconductivity in terms of spin fluctuationsSpin fluctuations are discussed from theoretical and experimental points of view. Spin-fluctuation theories beyond mean-field approximations are important to explain static magnetic properties as well as the dynamical properties of itinerant magnets. It was found that electron-pair formation due to magnetic spin fluctuationsSpin fluctuations can be realized in exotic superconductors. Problems in itinerant-electron systems continue to attract our interest.

Keywords: Spin fluctuations; Itinerant electrons; Collective modes of electrons; Itinerant magnetism; Exotic superconductivity; Itinerancy (Delocalization); Quantum physics; Solid-state physics (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:spr:crechp:978-981-16-4457-3_13

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DOI: 10.1007/978-981-16-4457-3_13

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