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17 October 2019
 
  » arxiv » cond-mat/0301610

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Electron-hole asymmetry is the key to superconductivity
J.E. Hirsch ;
Date 30 Dec 2002
Journal Int. J. Mod. Phys. B 17, 3236 (2003)
Subject Superconductivity; Strongly Correlated Electrons | cond-mat.supr-con cond-mat.str-el
AbstractIn a solid, transport of electricity can occur via negative electrons or via positive holes. In the normal state of superconducting materials experiments show that transport is usually dominated by $dressed$ $positive$ $hole$ $carriers$. Instead, in the superconducting state experiments show that the supercurrent is always carried by $undressed$ $negative$ $electron$ $carriers$. These experimental facts indicate that electron-hole asymmetry plays a fundamental role in superconductivity, as proposed by the theory of hole superconductivity.
Source arXiv, cond-mat/0301610
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