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Updated: Mar 24, 2026

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
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Interplay between Structural, Electronic, and Topological Properties in Low-Dimensional Tellurium.

Gabriel Elyas Gama Araújo1, Andreia Luisa da Rosa1

  • 1Federal University of Goiás, Institute of Physics, Campus Samambaia, Goiânia 74960600, Brazil.

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|March 23, 2026
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Summary
This summary is machine-generated.

Tellurium exhibits tunable topological properties across different dimensions. Researchers explored bulk, 2D tellurene, and 1D nanowires, finding Weyl nodes and quantum spin Hall phases, highlighting tellurium

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Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Quantum Chemistry

Background:

  • Topological materials exhibit unique electronic properties governed by their band structure topology.
  • Tellurium's dimensional hierarchy offers a platform for exploring diverse topological phases.
  • Understanding these properties is crucial for developing novel electronic and spintronic devices.

Purpose of the Study:

  • To comprehensively investigate the structural, electronic, vibrational, and topological properties of tellurium across its dimensional hierarchy.
  • To explore the potential of tellurium-based materials for hosting topological phenomena.
  • To identify new topological phases in tellurium polymorphs and nanostructures.

Main Methods:

  • First-principles calculations using density functional theory (DFT).
  • Inclusion of spin-orbit coupling (SOC) to accurately capture relativistic effects.
  • Analysis of electronic band structures, phonon modes, and topological invariants (Z2).

Main Results:

  • Bulk trigonal tellurium (Te-I) exhibits Weyl nodes and chiral phonon behavior.
  • Two-dimensional (2D) α- and β-tellurene are topologically trivial.
  • Buckled kagome and square tellurene lattices show nontrivial 2D Z2 topology, indicating incipient quantum spin Hall (QSH) character.
  • Hexagonal tellurene realizes a robust, gapped QSH phase with a Z2 = 1 invariant, stable under strain and functionalization.
  • One-dimensional (1D) helical tellurium nanowires host edge states with anisotropic effective masses.

Conclusions:

  • Tellurium serves as a versatile platform for engineering topological phenomena across 3D, 2D, and 1D systems.
  • The study bridges 3D Weyl physics, 2D QSH and incipient Z2 phases, and 1D helical systems.
  • These findings pave the way for novel topological materials and devices.