Fingerprints of collective magnetic excitations in inelastic electron tunneling spectroscopy

Spin-flip inelastic electron tunneling spectroscopy allows magnetic materials to be probed at the single-atom level via scanning tunneling microscopy. Previously, the local spectral weight of spin excitations of small systems has been deduced from discrete steps in the differential conductance. However, this is not viable for large systems. We show that the local spin density of states can be measured via the double differential conductance. This contrasts with elastic measurements where the local density of electronic states is deduced from the differential conductance. We study the tunneling currents of the spin-1/2 and -1 Heisenberg chains and propose a method to probe zero-frequency modes.

• Publication year

  2025

• Venue

  Unknown venue

• Publication date

  2025-07-23

• Fields of study

  Physics

• Identifiers
  arXiv 2507.17263
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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