Evolution of superconductivity in electron-doped cuprates: Magneto-Raman spectroscopy
نویسندگان
چکیده
M. M. Qazilbash,1,2,* A. Koitzsch,1,† B. S. Dennis,1 A. Gozar,1,‡ Hamza Balci,2 C. A. Kendziora,3 R. L. Greene,2 and G. Blumberg1,§ 1Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey 07974, USA 2Center for Superconductivity Research, Department of Physics, University of Maryland, College Park, Maryland 20742, USA 3United States Naval Research Laboratory, Code 6365, Washington D.C. 20375, USA Received 5 October 2005; published 13 December 2005
منابع مشابه
عدم تقارن الکترون-حفره در کوپراتهای دمای بالا از دید نظری
Asymmetric features of various physical quantities in the normal and superconducting states between hole- and electron-doped cuprate high-temperature superconductors have been an issue of debate for a long time. Their exploration is very important for the understanding not only of the mechanism of high-Tc superconductivity but also of the nature of doped-Mott insulators. Presented in this rev...
متن کاملSuppression of the antiferromagnetic pseudogap in the electron-doped high-temperature superconductor by protect annealing
In the hole-doped cuprates, a small number of carriers suppresses antiferromagnetism and induces superconductivity. In the electron-doped cuprates, on the other hand, superconductivity appears only in a narrow window of high-doped Ce concentration after reduction annealing, and strong antiferromagnetic correlation persists in the superconducting phase. Recently, Pr(1.3-x)La0.7Ce(x)CuO4 (PLCCO) ...
متن کاملBogoliubov angle in electron-doped cuprate superconductors
Within the framework of the kinetic energy driven superconducting mechanism, the momentum dependence of the Bogoliubov angle in the electron-doped cuprate superconductors is studied. By calculation of the ratio of the low energy quasiparticle spectra at positive and negative energies, it is shown that the Bogoliubov angle increases monotonically across the Fermi crossing point, suggesting a con...
متن کاملNodeless superconducting phase arising from a strong (π, π) antiferromagnetic phase in the infinite-layer electron-doped Sr(1-x)La(x)CuO2 compound.
The asymmetry between electron and hole doping remains one of the central issues in high-temperature cuprate superconductivity, but our understanding of the electron-doped cuprates has been hampered by apparent discrepancies between the only two known families: Re(2-x)Ce(x)CuO4 and A(1-x)La(x)CuO2. Here we report in situ angle-resolved photoemission spectroscopy measurements of epitaxially stab...
متن کاملDoping-dependent charge order correlations in electron-doped cuprates
Understanding the interplay between charge order (CO) and other phenomena (for example, pseudogap, antiferromagnetism, and superconductivity) is one of the central questions in the cuprate high-temperature superconductors. The discovery that similar forms of CO exist in both hole- and electron-doped cuprates opened a path to determine what subset of the CO phenomenology is universal to all the ...
متن کامل