Probing resonating valence bond states in artificial quantum magnets
Designing and characterizing the many-body behaviors of quantum materials represents a prominent challenge for understanding strongly correlated physics and quantum information processing. We constructed artificial quantum magnets on a surface by using spin-1/2 atoms in a scanning tunneling microsco...
| Main Authors: | , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Springer Nature
2021
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| _version_ | 1797057836397625344 |
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| author | Yang, K Phark, S-H Bae, Y Esat, T Ardavan, A Willke, P Heinrich, A Lutz, C |
| author_facet | Yang, K Phark, S-H Bae, Y Esat, T Ardavan, A Willke, P Heinrich, A Lutz, C |
| author_sort | Yang, K |
| collection | OXFORD |
| description | Designing and characterizing the many-body behaviors of quantum materials represents a prominent challenge for understanding strongly correlated physics and quantum information processing. We constructed artificial quantum magnets on a surface by using spin-1/2 atoms in a scanning tunneling microscope (STM). These coupled spins feature strong quantum fluctuations due to antiferromagnetic exchange interactions between neighboring atoms. To characterize the resulting collective magnetic states and their energy levels, we performed electron spin resonance on individual atoms within each quantum magnet. This gives atomic-scale access to properties of the exotic quantum many-body states, such as a finite-size realization of a resonating valence bond state. The tunable atomic-scale magnetic field from the STM tip allows us to further characterize and engineer the quantum states. These results open a new avenue to designing and exploring quantum magnets at the atomic scale for applications in spintronics and quantum simulations. |
| first_indexed | 2024-03-06T19:42:02Z |
| format | Journal article |
| id | oxford-uuid:21056564-91b0-48d5-a4a6-ecdf1d136784 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:42:02Z |
| publishDate | 2021 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | oxford-uuid:21056564-91b0-48d5-a4a6-ecdf1d1367842022-03-26T11:30:49ZProbing resonating valence bond states in artificial quantum magnetsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:21056564-91b0-48d5-a4a6-ecdf1d136784EnglishSymplectic ElementsSpringer Nature2021Yang, KPhark, S-HBae, YEsat, TArdavan, AWillke, PHeinrich, ALutz, CDesigning and characterizing the many-body behaviors of quantum materials represents a prominent challenge for understanding strongly correlated physics and quantum information processing. We constructed artificial quantum magnets on a surface by using spin-1/2 atoms in a scanning tunneling microscope (STM). These coupled spins feature strong quantum fluctuations due to antiferromagnetic exchange interactions between neighboring atoms. To characterize the resulting collective magnetic states and their energy levels, we performed electron spin resonance on individual atoms within each quantum magnet. This gives atomic-scale access to properties of the exotic quantum many-body states, such as a finite-size realization of a resonating valence bond state. The tunable atomic-scale magnetic field from the STM tip allows us to further characterize and engineer the quantum states. These results open a new avenue to designing and exploring quantum magnets at the atomic scale for applications in spintronics and quantum simulations. |
| spellingShingle | Yang, K Phark, S-H Bae, Y Esat, T Ardavan, A Willke, P Heinrich, A Lutz, C Probing resonating valence bond states in artificial quantum magnets |
| title | Probing resonating valence bond states in artificial quantum magnets |
| title_full | Probing resonating valence bond states in artificial quantum magnets |
| title_fullStr | Probing resonating valence bond states in artificial quantum magnets |
| title_full_unstemmed | Probing resonating valence bond states in artificial quantum magnets |
| title_short | Probing resonating valence bond states in artificial quantum magnets |
| title_sort | probing resonating valence bond states in artificial quantum magnets |
| work_keys_str_mv | AT yangk probingresonatingvalencebondstatesinartificialquantummagnets AT pharksh probingresonatingvalencebondstatesinartificialquantummagnets AT baey probingresonatingvalencebondstatesinartificialquantummagnets AT esatt probingresonatingvalencebondstatesinartificialquantummagnets AT ardavana probingresonatingvalencebondstatesinartificialquantummagnets AT willkep probingresonatingvalencebondstatesinartificialquantummagnets AT heinricha probingresonatingvalencebondstatesinartificialquantummagnets AT lutzc probingresonatingvalencebondstatesinartificialquantummagnets |