Fingerprints of collective magnetic excitations in inelastic electron tunneling spectroscopy
Fuente:
arXiv
Salvato in:
| Autori principali: | , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866909708209618944 |
|---|---|
| author | Rist, Finnian Nourse, Henry L. Powell, Ben J. |
| author_facet | Rist, Finnian Nourse, Henry L. Powell, Ben J. |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_17263 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Fingerprints of collective magnetic excitations in inelastic electron tunneling spectroscopy Rist, Finnian Nourse, Henry L. Powell, Ben J. Strongly Correlated Electrons Mesoscale and Nanoscale Physics 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. |
| title | Fingerprints of collective magnetic excitations in inelastic electron tunneling spectroscopy |
| topic | Strongly Correlated Electrons Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2507.17263 |