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Updated: Jan 10, 2026

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
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Fermi polarons under strain-induced pseudomagnetic fields.

Denis Yagodkin1, Kenneth Burfeindt2, Zakhar A Iakovlev3

  • 1Department of Physics and Halle-Berlin-Regensburg Cluster of Excellence CCE, Freie Universitat Berlin, Berlin, Germany. d.iagodkin@gmail.com.

Nature Communications
|November 20, 2025
PubMed
Summary
This summary is machine-generated.

Researchers applied strain to Transition Metal Dichalcogenides (TMDs) to control exciton pseudospin, mimicking spintronic effects. This study reveals the bosonic nature of excitons and opens doors for new quantum devices.

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Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Quantum Information Science

Background:

  • Excitons in Transition Metal Dichalcogenides (TMDs) possess a pseudospin derived from crystal symmetry.
  • Understanding exciton dynamics is crucial for quantum technologies.

Purpose of the Study:

  • To break crystal symmetry in TMDs using uniaxial strain to generate a pseudomagnetic field.
  • To investigate pseudospin dynamics and many-body excitonic states.

Main Methods:

  • Applying tunable uniaxial strain to TMDs.
  • Observing pseudospin analogs of Zeeman effect and Larmor precession.
  • Utilizing pseudomagnetic g-factor spectroscopy.

Main Results:

  • Successfully generated a pseudomagnetic field by breaking crystal symmetry.
  • Demonstrated pseudospin dynamics, including Zeeman effect and Larmor precession.
  • Uncovered the bosonic nature of many-body excitonic species.

Conclusions:

  • Strain-induced pseudomagnetic fields offer a new way to control exciton pseudospin.
  • Pseudomagnetic g-factor spectroscopy is a promising tool for studying many-body physics.
  • This work paves the way for pseudospin-based spintronic devices in TMDs.