کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1818500 1525743 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Universal intrinsic doping behavior of in-plane dc conductivity for hole-doped high-temperature cuprate superconductors
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Universal intrinsic doping behavior of in-plane dc conductivity for hole-doped high-temperature cuprate superconductors
چکیده انگلیسی

Understanding the normal state transport properties in hole-doped high-temperature cuprate superconductors (HTCSs) is a challenging task which has been widely believed to be one of the key steps toward revealing the pairing mechanism of high-temperature superconductivity. Here, we present a true intrinsic and universal doping dependence of in-plane dc conductivity for all underdoped HTCSs. The doping dependence of in-plane dc conductivity normalized to that at optimal doping can be represented by a simple exponential formula. The doping behavior of the square of the nodal Fermi velocity derived by the high-resolution laser-based angle-resolved photoemission spectroscopy in the superconducting state follows reasonably well the universal intrinsic doping behavior. Our findings suggest a commonality of the low-energy quasiparticles both in the normal and superconducting states that place a true universal and stringent constraint on the mechanism of high-temperature superconductivity for HTCSs.


► We have analyzed the in-plane dc conductivity data collected from cuprate superconductors based our universal hole-scale.
► We reveal a true intrinsic and universal doping dependence of in-plane dc conductivity in the underdoped side.
► This behavior is consistent with the nodal Fermi velocity measured by laser ARPES.
► Our findings unify the doping dependence of the normal and superconducting states.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity - Volume 471, Issues 17–18, September 2011, Pages 537–543
نویسندگان
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