Journal Article

FZJ-2022-06026

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Superconductors gain momentum

Pavarini, E. (Corresponding author)FZJ*

2022
Moses King Cambridge, Mass.

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Please use a persistent id in citations: http://hdl.handle.net/2128/34349  doi:10.1126/science.abn3794

Abstract: In a superconducting material, electrical resistivity abruptly disappears below a critical temperature. Discovered in solid mercury in 1911, superconductivity remained an unsolvable riddle until 1957, when physicists Bardeen, Cooper, and Schrieffer developed a theory explaining the phenomenon (1). According to the Bardeen-Cooper-Schrieffer (BCS) scheme, superconductivity arises when electrons form pairs that behave in a way that allows current to flow with zero resistance. Then, in 1964, Fulde and Ferrell (2) and Larkin and Ovchinnikov (3) pointed out that in the presence of a magnetic field, a different type of superconducting electron pairs could form. However, despite the intense search, direct evidence of this Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconducting state has proven hard to find. On page 397 of this issue, Kinjo et al. (4) report the observation of FFLO-driven spin-density modulations in the layered perovskite Sr2RuO4—a system with its own peculiar history.

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Contributing Institute(s):

1. Theoretische Nanoelektronik (IAS-3)

Research Program(s):

1. 5212 - Emergent Quantum Phenomena (POF4-521) (POF4-521)

Appears in the scientific report 2022

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