Volume 82, Number 4, May 2008
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||07 May 2008|
Superconductivity vs. spin-charge separation: Application to high-Tc cuprates
Department of Physics, Hong Kong University of Science and Technology - Clear Water Bay Road, Kowloon, Hong Kong
Corresponding author: firstname.lastname@example.org
Accepted: 27 March 2008
In this paper we examine the consequences of spin-charge separation on superconductivity. We show that a superconductor with spin-charge separation is a strongly phase-disordered superconductor which is a diamagnetic metal with Drude-like optical conductivity. With a few phenomenological assumptions we argue that this unusual state may correspond to the “upper" pseudo-gap phase of several (underdoped) high-Tc cuprates. Vortices with unquantized magnetic flux are predicted to exist in this unusual state of matter.
PACS: 71.10.-w – Theories and models of many-electron systems / 71.27.+a – Strongly correlated electron systems; heavy fermions / 74.20.Mn – Nonconventional mechanisms (spin fluctuations, polarons and bipolarons, resonating valence bond model, anyon mechanism, marginal Fermi liquid, Luttinger liquid, etc.)
© EPLA, 2008
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