Direct Visualization of a Disorder Driven Electronic Smectic Phase in Nonsymmorphic Square-Net Semimetal GdSbTe
arXiv:2402.18893 · doi:10.1038/s41535-025-00779-y
Abstract
Electronic liquid crystal (ELC) phases are spontaneous symmetry breaking states believed to arise from strong electron correlation in quantum materials such as cuprates and iron pnictides. Here, we report a direct observation of a smectic phase in a weakly correlated nonsymmorphic square-net semimetal GdSbxTe2-x. Incommensurate smectic charge modulation and intense local unidirectional nanostructure, which coexist with Dirac fermions across Fermi level, are visualized by using spectroscopic imaging - scanning tunneling microscopy. As materials with highly mobile carriers are mostly weakly correlated, the discovery of such an ELC phase are anomalous and raise questions on the origin of their emergence. Specifically, we demonstrate how chemical substitution generates these symmetry breaking phases before the system undergoes a charge density wave (CDW) - orthorhombic structural transition. Our results highlight the importance of impurities in realizing ELC phases and present a new material platform for exploring the interplay among quenched disorder, Dirac fermions and electron correlation.
References in corpus (30)
- Dirac Cone Protected by Non-Symmorphic Symmetry and 3D Dirac Line Node in ZrSiS
- An Intrinsic Bond-Centered Electronic Glass with Unidirectional Domains in Underdoped Cuprates
- Tunable Weyl and Dirac states in the nonsymmorphic compound
- Anisotropic Impurity-States, Quasiparticle Scattering and Nematic Transport in Underdoped Ca(Fe1-xCox)2As2
- Visualizing the emergence of the pseudogap state and the evolution to superconductivity in a lightly hole-doped Mott insulator
- Distinguishing Patterns of Charge Order: Stripes or Checkerboards
- Physics of higher orbital bands in optical lattices: a review
- Charge density waves in cuprate superconductors beyond the critical doping
- Observation of topological nodal-line fermionic phase in GdSbTe
- The role of delocalized chemical bonding in square-net-based topological semimetals
- Flat optical conductivity in ZrSiS due to two-dimensional Dirac bands
- Interacting line-node semimetal: Proximity effect and spontaneous symmetry breaking
- From stripe to checkerboard order on the square lattice in the presence of quenched disorder
- Evidence for a Vestigial Nematic State in the Cuprate Pseudogap Phase
- Band Engineering of Dirac Semimetals using Charge Density Waves
- A systematic study of stacked square nets: from Dirac fermions to material realizations
- Disorder Induced Suppression of CDW Long Range Order: STM Study of Pd-intercalated ErTe3
- Complex magnetic phases enriched by charge density waves in topological semimetals GdSb_xTe_{2-x-δ}
- Distinct fingerprints of charge density waves and electronic standing waves in ZrTe
- Evolving Devil's staircase magnetization from tunable charge density waves in nonsymmorphic Dirac semimetals
- Disorder quenching of the Charge Density Wave in ZrTe3
- Colossal negative magnetoresistance in the complex charge density wave regime of an antiferromagnetic Dirac semimetal
- Atomic-Scale Visualization of a Cascade of Magnetic Orders in the Layered Antiferromagnet
- Design and performance of an ultrahigh vacuum spectroscopic-imaging scanning tunneling microscope with a hybrid vibration isolation system
- Critical Nematic Correlations Throughout the Doping Range in BSCCO
- Visualizing the internal structure of the charge-density-wave state in CeSbTe
- Electronic Stripe Patterns Near the Fermi Level of Tetragonal Fe(Se,S)
- Stripe, checkerboard, and liquid-crystal ordering from anisotropic p-orbital Fermi surfaces in optical lattices
- Correlation-driven electronic nematicity in the Dirac semimetal BaNiS2
- Multiple charge-density-wave gaps in LaSbTe and CeSbTe as revealed by ultrafast spectroscopy