Spin excitations and correlations in scanning tunneling spectroscopy
In recent years inelastic spin-flip spectroscopy using a low-temperature scanning tunneling microscope has been a very successful tool for studying not only individual spins but also complex coupled systems. When these systems interact with the electrons of the supporting substrate correlated many-p...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2015-01-01
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| Series: | New Journal of Physics |
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| Online Access: | https://doi.org/10.1088/1367-2630/17/6/063016 |
| _version_ | 1797751166437687296 |
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| author | Markus Ternes |
| author_facet | Markus Ternes |
| author_sort | Markus Ternes |
| collection | DOAJ |
| description | In recent years inelastic spin-flip spectroscopy using a low-temperature scanning tunneling microscope has been a very successful tool for studying not only individual spins but also complex coupled systems. When these systems interact with the electrons of the supporting substrate correlated many-particle states can emerge, making them ideal prototypical quantum systems. The spin systems, which can be constructed by arranging individual atoms on appropriate surfaces or embedded in synthesized molecular structures, can reveal very rich spectral features. Up to now the spectral complexity has only been partly described. This manuscript shows that perturbation theory enables one to describe the tunneling transport, reproducing the differential conductance with surprisingly high accuracy. Well established scattering models, which include Kondo-like spin–spin and potential interactions, are expanded to enable calculation of arbitrary complex spin systems in reasonable time scale and the extraction of important physical properties. The emergence of correlations between spins and, in particular, between the localized spins and the supporting bath electrons are discussed and related to experimentally tunable parameters. These results might stimulate new experiments by providing experimentalists with an easily applicable modeling tool. |
| first_indexed | 2024-03-12T16:44:33Z |
| format | Article |
| id | doaj.art-6e08623473244d2c951b17e1913363f2 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:44:33Z |
| publishDate | 2015-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-6e08623473244d2c951b17e1913363f22023-08-08T14:18:26ZengIOP PublishingNew Journal of Physics1367-26302015-01-0117606301610.1088/1367-2630/17/6/063016Spin excitations and correlations in scanning tunneling spectroscopyMarkus Ternes0Max-Planck Institute for Solid State Research, Heisenbergstr. 1, D-70569 Stuttgart, GermanyIn recent years inelastic spin-flip spectroscopy using a low-temperature scanning tunneling microscope has been a very successful tool for studying not only individual spins but also complex coupled systems. When these systems interact with the electrons of the supporting substrate correlated many-particle states can emerge, making them ideal prototypical quantum systems. The spin systems, which can be constructed by arranging individual atoms on appropriate surfaces or embedded in synthesized molecular structures, can reveal very rich spectral features. Up to now the spectral complexity has only been partly described. This manuscript shows that perturbation theory enables one to describe the tunneling transport, reproducing the differential conductance with surprisingly high accuracy. Well established scattering models, which include Kondo-like spin–spin and potential interactions, are expanded to enable calculation of arbitrary complex spin systems in reasonable time scale and the extraction of important physical properties. The emergence of correlations between spins and, in particular, between the localized spins and the supporting bath electrons are discussed and related to experimentally tunable parameters. These results might stimulate new experiments by providing experimentalists with an easily applicable modeling tool.https://doi.org/10.1088/1367-2630/17/6/063016spin excitationsspin-flip spectroscopyKondo effectcorrelations68.37.Ef72.15.Qm |
| spellingShingle | Markus Ternes Spin excitations and correlations in scanning tunneling spectroscopy New Journal of Physics spin excitations spin-flip spectroscopy Kondo effect correlations 68.37.Ef 72.15.Qm |
| title | Spin excitations and correlations in scanning tunneling spectroscopy |
| title_full | Spin excitations and correlations in scanning tunneling spectroscopy |
| title_fullStr | Spin excitations and correlations in scanning tunneling spectroscopy |
| title_full_unstemmed | Spin excitations and correlations in scanning tunneling spectroscopy |
| title_short | Spin excitations and correlations in scanning tunneling spectroscopy |
| title_sort | spin excitations and correlations in scanning tunneling spectroscopy |
| topic | spin excitations spin-flip spectroscopy Kondo effect correlations 68.37.Ef 72.15.Qm |
| url | https://doi.org/10.1088/1367-2630/17/6/063016 |
| work_keys_str_mv | AT markusternes spinexcitationsandcorrelationsinscanningtunnelingspectroscopy |