[超导基础理论和实验技术系列讲座（九十三）]肖立业：超导技术在未来电网中的应用

讲座将首先介绍清洁能源革命以及未来电网所面临的挑战，进而说明超导技术在未来电网中的潜在应用，并重点介绍超导限流器、超导直流输电与超导能源管道、基于超导电性的电力储能技术、超导风力发电机等原理及研究进展。

[超导基础理论和实验技术系列讲座（九十二）]赵勇：高速超导磁悬浮列车的研发历史与现状

超导材料的强电应用涵盖了广阔的领域，高速磁浮列车就是其中重要的应用之一。我国幅员辽阔，人口众多，高速磁浮列车的应用在我国有着巨大的潜力。按照磁浮原理的不同，磁浮列车可以分为电磁吸引型、电动排斥型、以及超导量子磁悬浮型；按照磁浮关键材料的不同，亦可分为常导磁浮列车列、永磁磁浮列车、超导磁浮列车等类型。本讲座介绍了主要磁浮列车的基本原理、发展历史和现状、以及应用前景。其中就高速超导磁浮列车所涉及的物理、材料和电气技术等关键问题进行了特别的介绍。

[超导基础理论和实验技术系列讲座（九十一）] 徐庆金：粒子加速器中的高场超导磁体技术

粒子加速器是超导磁体技术最重要的应用领域之一：磁体场强的提高，将直接推动加速器能量的提高及规模与造价的降低。从20世纪70年代起的四十余年，国际上若干粒子加速器的建设，极大地推动了应用超导技术的发展及产业化：世界上第一个超导加速器：美国费米实验室(Fermilab)的Tevatron加速器的建设，建立了超导线缆及磁体大规模制备的基础设施及商业化供应，开创了超导行业的发展，将超导核磁共振谱仪(MRI)在世界各地的医院中普及，极大地提高了人类的健康水平。国内外目前和未来拟建设的高能量加速器，如欧洲核子研究中心（CERN）提议建设的环形对撞机(FCC),以及我国科学家于2012年提出的超级质子对撞机(SPPC)，均基于高场超导磁体技术，且磁体的性能及成本，直接决定着项目的指标、造价甚至可行性。本报告将对粒子加速器中高场超导磁体技术的特点、挑战，及其对整个超导技术发展的巨大推动作用，做简要的介绍。

[超导基础理论和实验技术系列讲座（九十）] 马衍伟：铁基超导线带材研究进展

Very high upper critical field and low anisotropy of iron-based superconductors (IBS) make them being particularly attractive for high-field applications, especially for the construction of nuclear magnetic resonance spectrometers, next-generation particle accelerators and ultra-high-field magnets.Conventional powder-in-tube method has been the most effective technique for fabricating IBS wires and tapes.Recently, significant progresses on the IBS wires have been made, in terms of both Jc enhancement and practical research. In this talk, the overview of the recent progress on Jc improvement and long wire fabrication will be provided.We also gives some advances relevant to practical applications, includingscalable process optimization, composite sheaths, multifilamentary fabrication, mechanical properties and superconductingjoints& coils

[超导基础理论和实验技术系列讲座（八十九）] The Advent of Two-dimensional Materials

Two-dimensional (2D) atomic crystals, best exemplified by graphene, have emerged as a new class of material that may impact future science and technology. 2D materials provides vast opportunities both on novel material properties that are different from those in the bulk, and better control of their material properties with external perturbations. In this talk I will illustrate a few examples ranged from semiconductors and high temperature superconductors. In particular, black phosphorus is a 2D semiconductor, and its superior material quality has recently enabled us to observe the quantum Hall effect; others include magnetic topological insulator and high temperature superconductor Bi2Sr2CaCu2O8+in the 2D limit. We explore their electronic properties while the doping and dimensionality of the 2D systems are modulated.

[超导基础理论和实验技术系列讲座（八十八）] Studies of superconductors using microwave technique

I will introduce several examples of studies of superconductor using microwave complex conductivity measurement, together with techniques developed for those purposes.  More explicitly, the followings are the list of the subject I am going to talk.

[超导基础理论和实验技术系列讲座（八十七）] Intertwined Orders in the Cuprate Superconductor and the Underlying Organization Principle

A sensible phenomenology of the complex phase diagram and rich phenomenon in the high-Tc cuprate calls for a microscopic understanding based on general principles. In this talk, I will identify a set of the most essential organization principles for the doped Mott insulator, which are argued to have captured the fundamental physics of the cuprate superconductor. Then I will exemplify their nature as the exotic long-range entanglement of many-body quantum mechanics by using the exact numerical tools of exact diagonalization and density matrix renormalization group, which are applied to some special cases of finite size/limited geometry to demonstrate the consequences of the general principle. Next, I will focus on the phase diagram relevant to the experiments in the cuprate, and show that it may be unified by a “parent”ground state ansatz constructed based on the organization principles. Here the superconducting state is of non-BCS nature with modified London equation and new elementary excitations. In particular, the two-gap structure and dichotomy between the nodal and antinodal regimes in the superconducting state, the origin of Fermi arc in the pseudogap regime, and the strange metal behavior in the high-temperature regime will be discussed as part of the emergent phenomenon.

[超导基础理论和实验技术系列讲座（八十六）] 扫描隧道谱和量子杂质探测非常规超导体电子配对机制

扫描隧道显微镜和隧道谱是基于量子力学的隧道效应而研发的原子分辨的探测仪器。其测量结果除了能够显示原子相，一级倒数dI/dV曲线能够给出局域电子态密度在空间的分布，二级倒数d2V/dI2能够给出电子与其他玻色子的相互作用。我将从量子力学的隧道效应和超导体的单电子隧道效应出发，介绍隧道显微镜和隧道谱在研究非常规超导机制中的应用。

[超导基础理论和实验技术系列讲座（八十五）] Recent Progress in Two-dimensional Superconductors

Two-dimensional (2D) superconductors have become an important platform to study high Tc superconductivity and novel quantum physics. After a brief introduction to superconductivity and 2D superconductivity, I would like to talk about the recent progress in experimental studies for 2D crystalline superconductors. The topics are mainly focused on quantum metal state, quantum Griffiths singularity, Ising superconductivity, interface superconductivity, high Tc and topological superconductivity. [1-8]

[超导基础理论和实验技术系列讲座（八十四）] 拓扑序材料——有量子记忆的材料：理论和实验

有很长一段时间，大家觉得材料所有不同的相和它们之间的相变，都是由朗道的对称性破缺理论来描写的。在1989年研究高温超导体中自旋液体的时候，我们在理论上发现了新的量子物态，它并不能被朗道的对称性破缺理论所描述。这一发现表明，对称性破缺理论并不能描述所有的相，一个没有预料到的一个新大陆出现在大家眼前。这一类新量子物态中的结构被称之为拓扑序。这一报告将系统介绍拓扑序，及其新奇的性质和相关的概念。包括：拓扑绝缘体没有拓扑序，量子自旋霍尔效应没有量子化的自旋霍尔效应，马约拉纳费米子不是马约拉纳的费米子，等等。