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High-temperature superconductors are nowadays found in great variety and hold technological promise. It is still an unsolved mystery that the critical temperature T_c of the basic cuprates is so high. The answer might well be hidden in a…

Superconductivity · Physics 2009-11-07 T. M. Mishonov , J. O. Indekeu , E. S. Penev

It is the purpose of this paper to explore the theory of high temperature superconductivity. Much of the motivation for this comes from the study of the cuprate high temperature superconductors. However, our primary focus is on the core…

Superconductivity · Physics 2009-09-29 E. W. Carlson , V. J. Emery , S. A. Kivelson , D. Orgad

After providing a brief genealogy of our recently proposed model for High-Tc cuprates, we investigate the details of the microscopic mechanism that produces an attractive interaction between neighboring holes. We show that a peculiar…

Superconductivity · Physics 2021-08-03 E. C. Marino

A phase diagram is drawn in a parameter space of the nearly half-filled single band two-dimensional Hubbard model with U/t, t'/t and n as the parameters, U, t, t' and n being the on-site interaction, the nearest and second nearest neighbor…

Superconductivity · Physics 2016-08-15 Hisashi Kondo , Tôru Moriya

Platinum-group transition-metal dichalcogenides have emerged as a subject of considerable interest in condensed matter physics due to their remarkable topological properties and unconventional superconducting behavior. In this study, we…

Superconductivity · Physics 2023-11-03 C. Patra , T. Agarwal , Arushi , P. Manna , N. Bhatt , R. S. Singh , R. P. Singh

The experimentally observed difference of superconducting critical temperature $T_{c}$ in hole-doped cuprates is studied by using an extended interlayer coupling model for layered d-wave superconductors. We show that the change of the…

Superconductivity · Physics 2009-11-10 X. J. Chen , H. Q. Lin

A key question in high temperature iron-based superconductivity is the mechanism by which the paired electrons minimize their strong mutual Coulomb repulsion. While electronically paired superconductors generally avoid the Coulomb…

Superconductivity · Physics 2016-05-19 T. Tzen Ong , P. Coleman , J. Schmalian

Self-assembling organic polymers and copper-oxide compounds are two classes of "strange" superconductors, whose challenging behavior does not comply with the traditional picture of Bardeen, Cooper, and Schrieffer (BCS) superconductivity in…

Superconductivity · Physics 2009-11-07 Alexander V. Milovanov , Jens J. Rasmussen

Short review of the topical comprehension of the superconductor materials classes Cuprate High-Temperature Superconductors, other oxide superconductors, Iron-based Superconductors, Heavy-Fermion Superconductors, Nitride Superconductors,…

Superconductivity · Physics 2016-04-29 Roland Hott , Reinhold Kleiner , Thomas Wolf , Gertrud Zwicknagl

We predict the possibility of realizing room-temperature superconductivity in different 2D domains within the ceramic high-Tc cuprates at ambient pressure and experimentally confirm this prediction of 2D room-temperature superconductivity…

Superconductivity · Physics 2024-01-08 S. Dzhumanov , D. D. Gulamova , Sh. S. Djumanov

Cuprates, a member of high-Tc superconductors, have been on the long-debate on their superconducting mechanism, so that predicting the critical temperature of cuprates still remains elusive. Herein, using machine learning and first…

Superconductivity · Physics 2021-07-12 Donggun Lee , Daegun You , Dongwoo Lee , Xin Li , Sooran Kim

To decipher the mechanism of high temperature superconductivity, it is important to know how the superconducting pairing emerges from the unusual normal states of cuprate superconductors, including pseudogap, anomalous Fermi liquid and…

The recently discovered iron arsenide superconductors, which display superconducting transition temperatures as high as 55 K, appear to share a number of general features with high-Tc cuprates, including proximity to a magnetically ordered…

Under the assumption that superconducting pairing is driven by local d-p hybridization, we show that the superconducting state in iron-based superconductors is classified as an odd parity s-wave spin-singlet pairing state in a single…

Superconductivity · Physics 2013-03-18 Jiangping Hu , Ningning Hao , Xianxin Wu

By investigating the bulk superconducting state via dc magnetization measurements, we have discovered a common resurgence of the superconductive transition temperatures (Tcs) of the monolayer Bi2Sr2CuO6+{\delta} (Bi2201) and bilayer…

Superconductivity · Physics 2019-01-30 Liangzi Deng , Yongping Zheng , Zheng Wu , Shuyuan Huyan , Hung-Cheng Wu , Yifan Nie , Kyeongjae Cho , Ching-Wu Chu

Iron-based superconductors have grown to be a new continent of high Tc superconductors comparable to cuprates. The optimal critical temperature (Tc) of 56 K in electron-doped 1111-type iron oxypnictides attracts considerable attention of…

Superconductivity · Physics 2020-02-27 Soshi Iimura , Hideo Hosono

Non-trivial topology and unconventional pairing are two central guiding principles in the contemporary search for and analysis of superconducting materials and heterostructure compounds. Previously, a topological superconductor has been…

Superconductivity · Physics 2020-11-10 Xianxin Wu , Wladimir A. Benalcazar , Yinxiang Li , Ronny Thomale , Chao-Xing Liu , Jiangping Hu

High temperature superconductors have in common that they consist of parallel planes of copper oxide separated by layers whose composition can vary. Being ceramics, the cuprate superconductors are poor conductors above the transition…

Superconductivity · Physics 2009-11-13 Achim Kempf

It has long been a challenge to describe the origin of unconventional superconductivity. The two known examples with high Tc, based on iron and copper, have very different electronic structures, while other materials with similar electronic…

Superconductivity · Physics 2017-05-03 Awadhesh Narayan , Brian Busemeyer , Lucas K. Wagner

High-temperature superconductivity occurs in strongly correlated materials such as copper oxides and iron-based superconductors. Numerous experimental and theoretical works have been done to identify the key parameters that induce…

Superconductivity · Physics 2023-05-02 Kota Ido , Yuichi Motoyama , Kazuyoshi Yoshimi , Takahiro Misawa