Topic
High-temperature superconductivity
About: High-temperature superconductivity is a research topic. Over the lifetime, 7263 publications have been published within this topic receiving 175377 citations. The topic is also known as: high-temperature superconductivity.
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TL;DR: A brief review of the current proposals to explain the observation of superconductivity with high transition temperatures in the copper oxides is given in this paper, where a brief review is given.
Abstract: A brief review is given of the current proposals to explain the observation of superconductivity with high transition temperatures in the copper oxides.
129 citations
TL;DR: In this paper, the authors examined physical properties for the time-reversal-breaking state ( s ± i d ) near the (1, 1, 0) surface of d x 2 -y 2 -wave superconductors.
Abstract: In a previous paper a possibility of coexistence of two superconducting order parameters was discussed for the (1, 1, 0) surface of d x 2 - y 2 -wave superconductors. In the present report physical properties are examined particularly for the time-reversal-breaking state ( s ± i d ) near the (1, 1, 0) surface. The nature of coexisting order parameters shows up in the local density of states. It is also shown that the superconducting current flows along the surface due to the time reversal breaking and induces the magnetic field. The induced magnetic field can be used to detect the time-reversal-breaking states experimentally.
128 citations
128 citations
TL;DR: The increasing spacing between the C60 molecules follows the general trend of alkali metal–doped C60 and suggests routes to even higher transition temperatures.
Abstract: C60 single crystals have been intercalated with CHCl3 and CHBr3 in order to expand the lattice. High densities of electrons and holes have been induced by gate doping in a field-effect transistor geometry. At low temperatures, the material turns superconducting with a maximum transition temperature of 117 K in hole-doped C60/CHBr3. The increasing spacing between the C60 molecules follows the general trend of alkali metal–doped C60 and suggests routes to even higher transition temperatures.
128 citations
TL;DR: In this paper, the magnetic field and temperature dependences of the oscillations between 20 and 55 T in the liquid helium temperature range suggest that the electronic excitations are those of a Fermi liquid.
Abstract: We report measurements of quantum oscillations in SrFe2As2—which is an antiferromagnetic parent of the iron arsenide family of superconductors—known to become superconducting under doping and the application of pressure. The magnetic field and temperature dependences of the oscillations between 20 and 55 T in the liquid helium temperature range suggest that the electronic excitations are those of a Fermi liquid. We show that the observed Fermi surface comprising small pockets is consistent with the formation of a spin-density wave. Our measurements thus demonstrate that high Tc superconductivity can occur on doping or pressurizing a conventional metallic spin-density wave state.
128 citations