![]() Three-state nematicity and magneto-optical Kerr effect in the charge density waves in kagome superconductors. Time-reversal symmetry-breaking charge order in a kagome superconductor. Observation of unconventional charge density wave without acoustic phonon anomaly in kagome superconductors AV 3Sb 5 (A = Rb, Cs). Roton pair density wave in a strong-coupling kagome superconductor. Three-dimensional charge density wave and surface-dependent vortex-core states in a kagome superconductor CsV 3Sb 5. Cascade of correlated electron states in the kagome superconductor CsV 3Sb 5. Unconventional chiral charge order in kagome superconductor KV 3Sb 5. Unconventional Fermi Surface Instabilities in the kagome Hubbard model. Competing electronic orders on kagome lattices at van Hove filling. Twofold van Hove singularity and origin of charge order in topological kagome superconductor CsV 3Sb 5. Charge-density-wave-driven electronic nematicity in a kagome superconductor. Kagome superconductors AV 3Sb 5 (A = K, Rb, Cs). Charge order and superconductivity in kagome materials. Absence of local moments in the kagome metal KV 3Sb 5 as determined by muon spin spectroscopy. CsV 3Sb 5: a Z 2 topological kagome metal with a superconducting ground state. New kagome prototype materials: discovery of KV 3Sb 5, RbV 3Sb 5, and CsV 3Sb 5. Moiré nematic phase in twisted double bilayer graphene. Charge order and broken rotational symmetry in magic-angle twisted bilayer graphene. Nematicity and competing orders in superconducting magic-angle graphene. Observation of a nematic quantum Hall liquid on the surface of bismuth. Evidence for an anisotropic state of two-dimensional electrons in high Landau levels. Thermodynamic evidence for a nematic phase transition at the onset of the pseudogap in YBa 2Cu 3Oy. What drives nematic order in iron-based superconductors? Nat. Simultaneous transitions in cuprate momentum-space topology and electronic symmetry breaking. ![]() Visualization of electron nematicity and unidirectional antiferroic fluctuations at high temperatures in NaFeAs. Electronic nematicity above the structural and superconducting transition in BaFe 2(As 1− xP x) 2. Nematic electronic structure in the ‘parent’ state of the iron-based superconductor Ca (Fe 1– xCo x) 2As 2. ![]() In-plane resistivity anisotropy in an underdoped iron arsenide superconductor. Broken rotational symmetry in the pseudogap phase of a high- T c superconductor. Electronic liquid crystal state in the high-temperature superconductor YBa 2Cu 3O 6.45. Intertwined vestigial order in quantum materials: nematicity and beyond. Nematic Fermi fluids in condensed matter physics. Electronic liquid crystal phases of a doped Mott insulator. This provides a platform for modelling electronic nematicity in systems where electron correlations and lattice degree of freedom act together. The anti-correlation between the nematic transition temperature and the superconducting transition temperature with Ti substitution suggests a possible competition between superconductivity and electronic nematicity, with principal superconducting gaps opening on the same vanadium bands once the nematic state is totally suppressed. We find that electron–phonon coupling alters the self-energy of the electrons and renormalizes the Fermi velocity of the in-plane vanadium bands only along the symmetry-breaking direction, making the low-energy dispersion and electron dynamics highly non-equivalent along the three lattice directions. Two-fold symmetric quasiparticle scattering interference of the vanadium kagome bands emerges below the bulk nematic transition temperature deep inside the charge density wave phase. Here we visualize the organization of the interacting quasiparticles in the nematic state of the kagome superconductor CsV 3− xTi xSb 5 using scanning tunnelling microscopy. Understanding the nature of the nematic state and its consequences for the electronic band structure and superconductivity has therefore become a key issue in condensed matter physics. Electronic nematicity has been commonly observed in juxtaposition with unconventional superconductivity. ![]()
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