Abstracts - faqs.org

Abstracts

Zoology and wildlife conservation

Search abstracts:
Abstracts » Zoology and wildlife conservation

Spectroscopic evidence for a pseudogap in the normal state of underdoped high-T(sub c) superconductors

Article Abstract:

A pseudogap is present below a temperature (T*) that is greater than the superconducting transition temperature (T(sub c)) in the normal state of underdoped samples of Bi2Sr2CaCu2O(8+delta). The presence of the pseudogap is indicated by experiments measuring the momentum-resolved electron excitation spectrum of CuO2 planes using angle-resolved photoemission spectroscopy. The pseudogap has a d-wave symmetry and forms the d-wave superconducting gap when phase coherence is generated below T(sub c). The value of T* decreases with an increase in doping.

Author: Takahashi, T., Ding, H., Kadowaki, K., Yokoya, T., Campuzano, J.C., Randeria, M., Norman, M.R., Mochiku, T., Giapintzakis, J.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
Usage, High temperature superconductors, Emission spectroscopy, Atomic emission spectroscopy

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


Destruction of the Fermi surface in underdoped high-Tc superconductors

Article Abstract:

The temperature dependence of the Fermi surface in underdoped Bi(sub2)Sr(sub2)CaCu(s8b2)O(sub8+delta) was examined using angle-resolved photoemission spectroscopy. On cooling the pseudo-gap was found to open up at different temperatures for different points in momentum space, resulting in the initial breakup of the Fermi surface. This occurs in the absence of long-range order.

Author: Hinks, D.G., Takahashi, T., Ding, H., Kadowaki, K., Yokoya, T., Campuzano, J.C., Randeria, M., Norman, M.R., Mochiku, T., Takeuchi, T., Guptasarma, P.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
Fermi surfaces

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


The origin of multiple superconducting gaps in MgB2

Article Abstract:

The direct experimental evidence for the two-band superconductivity in MgB2, by separately observing the super conducting gaps of the alpha and phi bands, is reported. The gaps have distinctly different sizes, which unambiguously establishes MgB2 as a two-gap superconductor.

Author: Matsui, H., Sato, T., Takahashi, T., Souma, S.; Sasaki, S., Machida, Y., Campuzano, J. C., Wang, S. C., Ding, H., Kaminski, A., Kadowaki, K.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
Science & research, All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Magnesium Compounds, Superconductivity

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


Subjects list: Research
Similar abstracts:
  • Abstracts: Superconductivity two decades on. A universal scaling relation in high-temperature superconductors. A hidden pseudogap under the 'dome' of superconductivity in electron-doped high-temperature superconductors
  • Abstracts: Genetic evidence for complex speciation of humans and chimpanzees. Sequencing and comparison of yeast species to identify genes and regulatory elements
  • Abstracts: An asymptotic-giant-branch star in the progenitor system of a type la supernova. The massive binary companion star to the progenitor of supernova 1993J
  • Abstracts: An expressed pseudogene regulates the messenger-RNA stability of its homologous coding gene
  • Abstracts: Ligand-receptor binding revealed by the TNF family member TALL-1. Structure of the replicative helicase of the oncoprotein SV40 large tumor antigen
This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.
Some parts © 2025 Advameg, Inc.