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High-temperature superconductivity models

机译：高温超导模型

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摘要

Cuprate-based high-temperature superconductors exhibit special properties in both normal and superconducting states, namely (1) a high superconducting transition temperature T_c; (2)d-type symmetry of the superconducting order parameter Δ and low sensitivity to scattering on nonmagnetic impurities; (3) the following features of the phase diagram: proximity of the antiferromagnetic and superconducting states, the existence of the latter within a limited (on both sides) interval of carrier concentrations (Fig. 1), and the existence of a pseudogap state at T > T_c in the underdoped (UD) region; (4)'violation' of the optical sum rule; (5) the presence of a peak-dip-hump structure in angle-resolved photoemission spectra (ARPES) and in the tunneling characteristics; (6) the static and dynamic structure of stripes and its relation to superconductivity; (7) characteristic features of the inelastic neutron scattering spectra at T < T_c; (8) a difference between the concentration of the superconducting component and the total carrier concentration; (9) a large ratio 2Δ(T = 0)/T_c in the low-doping region; and (10) anomalous temperature and frequency dependence of the diagonal and Hall resistivities. It is understood that most of these features are related to electronic correlations not only of a superconducting nature, a fact indicated, in particular, by the proximity of superconducting (SC) and antiferromagnetic (AF) ordering in the phase diagram (see Fig. 1) and by the manifestation of short range AF order in the SC region.
机译：铜酸盐基高温超导体在常态和超导状态下均表现出特殊的性能，即（1）高超导转变温度T_c; （2）超导阶数参数d的对称性，对非磁性杂质的散射敏感性低。 （3）相图的以下特征：反铁磁态和超导态的接近性，载流子浓度在有限的（两侧）间隔内（图1）和超导态的存在，以及在在欠掺杂（UD）区域中T> T_c; （4）违反总和规则; （5）在角度分辨光发射光谱（ARPES）和隧穿特性中存在峰-峰-峰结构; （6）条纹的静态和动态结构及其与超导性的关系; （7）T

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