Interrelation of Superconducting and Antiferromagnetic Gaps in High-Tc Compounds: a Test Case for a Microscopic Theory

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dc.creatorHanke, Werner
dc.creatorZacher, Marc G.
dc.creatorArrigoni, Enrico
dc.creatorZhang, Shou-Cheng
dc.date1999-08-12
dc.date.accessioned2026-07-07T03:14:12Z
dc.date.available2026-07-07T03:14:12Z
dc.descriptionRecent angle resolved photoemission (ARPES) data, which found evidence for a d-wave-like modulation of the antiferromagnetic gap, suggest an intimate interrelation between the antiferromagnetic insulator and the superconductor with its d-wave gap. This poses a new challenge to microscopic descriptions, which should account for this correlation between, at first sight, very different states of matter. Here, we propose a microscopic mechanism which provides a definite correlation between these two different gap structures: it is shown that a projected SO(5) theory, which aims at unifying antiferromagnetism and d-wave superconductivity via a common symmetry principle while explicitly taking the Mott-Hubbard gap into account, correctly describes the observed gap characteristics. Specifically, it accounts for both the dispersion and the order of magnitude difference between the antiferromagnetic gap modulation and the superconducting gap.
dc.description8 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/9908175
dc.identifierhttp://arxiv.org/abs/cond-mat/9908175
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/29586
dc.subjectStrongly Correlated Electrons
dc.titleInterrelation of Superconducting and Antiferromagnetic Gaps in High-Tc Compounds: a Test Case for a Microscopic Theory
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