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The recent and exciting discovery of superconductivity in the hole-doped infinite-layer nickelate Nd 1-{\delta} Sr {\delta} NiO 2 draws strong attention to correlated quantum materials. From a theoretical view point, this new class of…

Strongly Correlated Electrons · Physics 2021-01-05 Byungkyun Kang , Corey Melnick , Patrick Semon , Siheon Ryee , Myung Joon Han , Gabriel Kotliar , Sangkook Choi

The asymmetry between electron and hole doping remains one of the central issues in high-temperature cuprate superconductivity, but our understanding of the electron-doped cuprates has been hampered by apparent discrepancies between the…

Understanding the pseudogap phase in hole-doped high temperature cuprate superconductors remains a central challenge in condensed matter physics. From a host of recent experiments there is now compelling evidence of translational symmetry…

Strongly Correlated Electrons · Physics 2024-02-20 Gargee Sharma , S. Nandy , A. Taraphder , Sumanta Tewari

High-resolution photoemission has been used to study the electronic structure of the charge density wave (CDW) and superconducting (SC) dichalcogenide, 2H- NbSe2. From the extracted self-energies, important components of the quasiparticle…

Strongly Correlated Electrons · Physics 2007-05-23 T. Valla , A. V. Fedorov , P. D. Johnson , P-A. Glans , C. McGuinness , K. E. Smith , E. Y. Andrei , H. Berger

To explore the doping dependence of the recently discovered charge density wave (CDW) order in YBa2Cu3Oy, we present a bulk-sensitive high-energy x-ray study for several oxygen concentrations, including strongly underdoped YBa2Cu3O6.44.…

Charge density waves (CDW) have been reported in NdNiO$_2$ and LaNiO$_2$ thin films grown on SrTiO$_3$ substrates using Ni-$L_3$ resonant x-ray scattering in Refs. [1-3]. In their comment [arXiv:2306.15086] on these reports, Pelliciari et…

Ba(Ni$_{1-x}$Co$_x$)$_2$As$_2$ is a structural homologue of the pnictide high temperature superconductor, Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$, in which the Fe atoms are replaced by Ni. Superconductivity is highly suppressed in this system,…

The recently discovered coexistence of superconductivity and charge density wave order in the kagome systems AV3Sb5 (A = K, Rb, Cs) has stimulated enormous interest. According to theory, a vanadium-based kagome system may host a flat band,…

Superconductivity (SC) and charge-density wave (CDW) are two contrasting yet relevant collective electronic states which have received sustained interest for decades. Here we report that, in a layered europium bismuth sulfofluoride,…

We have developed a generalized electronic phase separation model of high-temperature cuprate superconductors that links the two distinct energy scales of the superconducting (SC) and pseudogap (PG) phases via a charge-density-wave (CDW)…

Superconductivity · Physics 2017-06-01 E. V. L. de Mello , J. E. Sonier

By measuring the temperature dependence of the resistance, we investigated the effect of Cu doping on superconductivity (SC) in Cu-doped TaSe$_3$ in which the charge density wave (CDW) transition is induced by Cu doping. We observed an…

Superconductivity · Physics 2019-01-10 Atsushi Nomura , Kazuhiko Yamaya , Shigeru Takayanagi , Koichi Ichimura , Satoshi Tanda

The similarities and differences between hole- and electron-doped cuprates are central to studies of high-temperature superconductivity. While electronic nematicity is found to be pervasive in hole-doped cuprates, iron-based…

Superconductivity · Physics 2025-06-18 J. Y. Shen , G. F. Chen , Y. C. Zhang , G. Y. Xi , J. Y. He , X. B. Cheng , J. Wu

The occurrence of charge-density-wave (CDW) order is a common thread in the phase diagram of cuprate high-transition-temperature ($T_c$) superconductors. In iron-based superconductors (FeSCs), nematic order and fluctuations play a decisive…

Nickelate superconductors provide a valuable new platform for the study of unconventional superconductivity that is complementary to the cuprates. One of the central puzzles about high-temperature superconductors is what factors determine…

Neutron scattering experiments were performed on the undoped and hole-doped Ca$_{2+x}$Y$_{2-x}$Cu$_5$O$_{10}$, which consists of ferromagnetic edge-sharing CuO$_2$ chains. It was previously reported that in the undoped…

Strongly Correlated Electrons · Physics 2009-11-10 M. Matsuda , K. Kakurai , S. Kurogi , K. Kudo , Y. Koike , H. Yamaguchi , T. Ito , K. Oka

The discovery of a magnetic-field-induced charge-density-wave (CDW) order in the pseudogap state via nuclear magnetic resonance (NMR) studies has highlighted the importance of "charge" in the physics of high transition-temperature ($T_{\rm…

Superconductivity · Physics 2021-08-26 Shinji Kawasaki , Madoka Ito , Dai Kamijima , Chengtian Lin , Guo-qing Zheng

Charge density wave (CDW) orders in YNiC2 are studied by means of combined experimental and computational techniques. On the experimental side, single crystals grown by the floating-zone method were examined by means of X-ray diffraction,…

Strongly Correlated Electrons · Physics 2025-05-07 Marta Roman , Simone Di Cataldo , Berthold Stöger , Lisa Reisinger , Emilie Morineau , Kamil K. Kolincio , Herwig Michor

Superconductivity is caused by the interaction between electrons by the exchange of collective bosonic excitations, however, this bosonic glue forming electron pairs is manifested itself by the coupling strength of the electrons to…

Superconductivity · Physics 2019-09-27 Yingping Mou , Yiqun Liu , Shuning Tan , Shiping Feng

The complex phase diagram of 1T-TiSe2 consists of a charge density wave (CDW) below 200 K, and CDW fluctuations of still unknown origin at higher temperatures. Here, we use time-resolved extreme ultraviolet momentum microscopy and density…

Antimonene is a recently discovered two-dimensional semiconductor with exceptional environmental stability, high carrier mobility, and strong spin-orbit interactions. In combination with electric field, the latter provides an additional…

Superconductivity · Physics 2019-03-06 A. V. Lugovskoi , M. I. Katsnelson , A. N. Rudenko