copper oxide

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copper oxide

[′käp·ər ′äk‚sīd]
(inorganic chemistry)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Materials containing CuO2 crystal layers (cuprates) are, at present, the best candidate for highest temperature superconductivity, operating at approximately -120 AC.
Caption: Figure 1: Simplified doping-dependent phase diagram of cuprate superconductors for both electron (n) and hole (p) doping.
It would also redirect the efforts of many physicists who have been focusing on copper-based superconducting compounds called cuprates, discovered in 1986.
Aharony, "Weak ferromagnetism in the low-temperature tetragonal phase of the cuprates," Physical Review B: Condensed Matter and Materials Physics, vol.
Studies of the internal structure of cuprates and pnictides led researchers to the idea that a superconductor is a hamburger, in which the electric current flows through the 'meat', while the 'buns' act as a supplier of electrons (Collins, 2009).
This strategy has been used to identify and quantify cation disorder in many complex solids, for example, the thallium cuprate superconductors [Tl.sub.2][Ba.sub.2]Cu[O.sub.6] [10] and [Tl.sub.0.5][Pb.sub.0.5][Sr.sub.2][Ca.sub.2][Cu.sub.3][O.sub.9] [11].
High temperature superconducting resonators and phase shifters, and microwave digital phase shifters have been constructed using yttrium barium cuprate (YBCO) film with semiconductor PIN diodes serving as switches.[7] A four-bit superconducting phase shifter design along with a simulation that indicates maximum insertion loss of 1.1 dB at 10 GHz at 77 [degrees] K have also been presented.
More recently, a cerium-doped neodymium cuprate (Nd.sub.2-x Ce.sub.x.CuO.sub.4) with a T.sub.c of 24 K was found to have current carriers that are electrons.