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Volumn 59, Issue 2, 1999, Pages 1339-1353

Sharp k-space features in the order parameter within the interlayer pair-tunneling mechanism of high-(formula presented) superconductivity

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Indexed keywords


EID: 0000433804     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.59.1339     Document Type: Article
Times cited : (20)

References (80)
  • 2
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    • Ch.P. Poole, Jr., H.A. Farach, and R.J. Creswick, Superconductivity (Academic, San Diego, 1995).
    • Ch.P. Poole, Jr., H.A. Farach, and R.J. Creswick, Superconductivity (Academic, San Diego, 1995).
  • 5
    • 85037877345 scopus 로고    scopus 로고
    • M. Randeria and J.C. Campuzano, in Models and Phenomenology for Conventional and High-temperature Superconductivity, Proceedings of the CXXXVI International School of Physics “E. Fermi,” edited by G. Iadonisi, R.J. Schrieffer, and M.L. Chiofalo (IOS, Amsterdam, 1999).
    • M. Randeria and J.C. Campuzano, in Models and Phenomenology for Conventional and High-temperature Superconductivity, Proceedings of the CXXXVI International School of Physics “E. Fermi,” edited by G. Iadonisi, R.J. Schrieffer, and M.L. Chiofalo (IOS, Amsterdam, 1999).
  • 24
    • 85037886531 scopus 로고    scopus 로고
    • P.W. Anderson, The Theory of Superconductivity in the High-(Formula presented) Cuprates (Princeton Series in Physics, Princeton, 1997).
    • P.W. Anderson, The Theory of Superconductivity in the High-(Formula presented) Cuprates (Princeton Series in Physics, Princeton, 1997).
  • 41
    • 85037880897 scopus 로고    scopus 로고
    • A Van Hove singularity in the single particle DOS at the Fermi surface corresponds to a second derivative of the free energy with respect to filling which is negative, i.e., an unstable situation with a local maximum in the free energy. The way a system avoids such a situation when the Fermi level approaches a Van Hove singularity, is through reconstruction of the underlying lattice. This splits a 2D logarithmic singularity into two singularities, such that the Fermi level is located at a local minimum in the DOS in between the new singularities. Note that the fact that high-(Formula presented) superconductors self-dope to optimum filling clearly negates the notion that optimum doping corresponds to an unstable situation with a local maximum in the free energy.
    • A Van Hove singularity in the single particle DOS at the Fermi surface corresponds to a second derivative of the free energy with respect to filling which is negative, i.e., an unstable situation with a local maximum in the free energy. The way a system avoids such a situation when the Fermi level approaches a Van Hove singularity, is through reconstruction of the underlying lattice. This splits a 2D logarithmic singularity into two singularities, such that the Fermi level is located at a local minimum in the DOS in between the new singularities. Note that the fact that high-(Formula presented) superconductors self-dope to optimum filling clearly negates the notion that optimum doping corresponds to an unstable situation with a local maximum in the free energy.
  • 46
    • 85037908783 scopus 로고    scopus 로고
    • On the other hand, it may be worth emphasizing that the physical origin of in-plane pairing is logically independent from the ILPT mechanism, as earlier recognized by Anderson (see, e.g., Ref. 20
    • On the other hand, it may be worth emphasizing that the physical origin of in-plane pairing is logically independent from the ILPT mechanism, as earlier recognized by Anderson (see, e.g., Ref. 20).
  • 49
    • 85037876389 scopus 로고    scopus 로고
    • It is understood that normal Hartree terms, i.e., of the form (Formula presented) can be absorbed in the renormalization of the chemical potential, which is here treated as a free parameter.
    • It is understood that normal Hartree terms, i.e., of the form (Formula presented) can be absorbed in the renormalization of the chemical potential, which is here treated as a free parameter.
  • 57
    • 85037900659 scopus 로고    scopus 로고
    • G.G.N. Angilella, Ph.D. thesis, University of Catania, 1999.
    • G.G.N. Angilella, Ph.D. thesis, University of Catania, 1999.
  • 58
    • 85037913998 scopus 로고    scopus 로고
    • Note that it is the presence of a generally nonzero (Formula presented) in the pair susceptibility (Formula presented) which prevents the quantity (Formula presented) from being actually zero for (Formula presented)
    • Note that it is the presence of a generally nonzero (Formula presented) in the pair susceptibility (Formula presented) which prevents the quantity (Formula presented) from being actually zero for (Formula presented)
  • 62
    • 85037922917 scopus 로고    scopus 로고
    • Ch.P. Enz, A Course on Many-Body Theory Applied to Solid State Physics (World Scientific, Singapore, 1992).
    • Ch.P. Enz, A Course on Many-Body Theory Applied to Solid State Physics (World Scientific, Singapore, 1992).
  • 64
    • 85037921920 scopus 로고    scopus 로고
    • J.O. Fjærestad and A. Sudbø (unpublished).
    • J.O. Fjærestad and A. Sudbø (unpublished).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.