What is pseudogap in cuprates?
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The pseudogap in cuprates refers to a phenomenon where a partial energy gap appears in the electronic density of states above the superconducting transition temperature. It is observed in various cuprate superconductors such as YBa2Cu3O7−δ, Bi2Sr2CaCu2O8+δ, and La2−xSrxCuO4. The pseudogap is characterized by a decrease in the magnitude of the gap with increasing doping, and it abruptly closes at a critical doping of p ≈ 0.19 holes/Cu. The pseudogap state is separated from the pseudogap-free region by a vertical line in the phase diagram. The pseudogap is in competition with superconductivity for anti-nodal spectral weight, and its existence extends throughout the phase diagram. The pseudogap is believed to be due to hole pairs or "pairons" above the superconducting transition temperature.
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| The paper does not explicitly define the term "pseudogap." | |
15 Jul 2022 | The paper does not provide a direct definition of the pseudogap in cuprates. |
| The paper does not provide a clear definition of the pseudogap in cuprates. | |
| The paper provides an explanation for the pseudogap in cuprates, which is a phenomenon where a gap in the electronic density of states appears near the antinodal points below a certain temperature. | |
1 Citations | The paper provides a review of the thermodynamic characteristics of the pseudogap state in cuprate superconductors, but it does not explicitly define what the pseudogap is. |
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