Electric‐Field‐Driven Spin Resonance by On‐Surface Exchange Coupling to a Single‐Atom Magnet
Abstract Coherent control of individual atomic and molecular spins on surfaces has recently been demonstrated by using electron spin resonance (ESR) in a scanning tunneling microscope (STM). Here, a combined experimental and modeling study of the ESR of a single hydrogenated Ti atom that is exchange...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-09-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202302033 |
| _version_ | 1827807190065348608 |
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| author | Soo‐hyon Phark Hong Thi Bui Alejandro Ferrón Joaquin Fernández‐Rossier Jose Reina‐Gálvez Christoph Wolf Yu Wang Kai Yang Andreas J. Heinrich Christopher P. Lutz |
| author_facet | Soo‐hyon Phark Hong Thi Bui Alejandro Ferrón Joaquin Fernández‐Rossier Jose Reina‐Gálvez Christoph Wolf Yu Wang Kai Yang Andreas J. Heinrich Christopher P. Lutz |
| author_sort | Soo‐hyon Phark |
| collection | DOAJ |
| description | Abstract Coherent control of individual atomic and molecular spins on surfaces has recently been demonstrated by using electron spin resonance (ESR) in a scanning tunneling microscope (STM). Here, a combined experimental and modeling study of the ESR of a single hydrogenated Ti atom that is exchange‐coupled to a Fe adatom positioned 0.6–0.8 nm away by means of atom manipulation is presented. Continuous wave and pulsed ESR of the Ti spin show a Rabi rate with two contributions, one from the tip and the other from the Fe, whose spin interactions with Ti are modulated by the radio‐frequency electric field. The Fe contribution is comparable to the tip, as revealed by its dominance when the tip is retracted, and tunable using a vector magnetic field. The new ESR scheme allows on‐surface individual spins to be addressed and coherently controlled without the need for magnetic interaction with a tip. This study establishes a feasible implementation of spin‐based multi‐qubit systems on surfaces. |
| first_indexed | 2024-03-11T21:52:38Z |
| format | Article |
| id | doaj.art-7434ab315d9c4a9e984e48b043882fab |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-03-11T21:52:38Z |
| publishDate | 2023-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-7434ab315d9c4a9e984e48b043882fab2023-09-26T07:39:32ZengWileyAdvanced Science2198-38442023-09-011027n/an/a10.1002/advs.202302033Electric‐Field‐Driven Spin Resonance by On‐Surface Exchange Coupling to a Single‐Atom MagnetSoo‐hyon Phark0Hong Thi Bui1Alejandro Ferrón2Joaquin Fernández‐Rossier3Jose Reina‐Gálvez4Christoph Wolf5Yu Wang6Kai Yang7Andreas J. Heinrich8Christopher P. Lutz9Center for Quantum Nanoscience Institute for Basic Science (IBS) Seoul 03760 Republic of KoreaCenter for Quantum Nanoscience Institute for Basic Science (IBS) Seoul 03760 Republic of KoreaInstituto de Modelado e Innovación Tecnológica (CONICET‐UNNE) and Facultad de Ciencias Exactas Naturales y Agrimensura Universidad Nacional del Nordeste Avenida Libertad 5400 Corrientes W3404AAS ArgentinaInternational Iberian Nanotechnology Laboratory (INL) Braga 4715‐330 PortugalCenter for Quantum Nanoscience Institute for Basic Science (IBS) Seoul 03760 Republic of KoreaCenter for Quantum Nanoscience Institute for Basic Science (IBS) Seoul 03760 Republic of KoreaCenter for Quantum Nanoscience Institute for Basic Science (IBS) Seoul 03760 Republic of KoreaIBM Research Division Almaden Research Center San Jose CA 95120 USACenter for Quantum Nanoscience Institute for Basic Science (IBS) Seoul 03760 Republic of KoreaIBM Research Division Almaden Research Center San Jose CA 95120 USAAbstract Coherent control of individual atomic and molecular spins on surfaces has recently been demonstrated by using electron spin resonance (ESR) in a scanning tunneling microscope (STM). Here, a combined experimental and modeling study of the ESR of a single hydrogenated Ti atom that is exchange‐coupled to a Fe adatom positioned 0.6–0.8 nm away by means of atom manipulation is presented. Continuous wave and pulsed ESR of the Ti spin show a Rabi rate with two contributions, one from the tip and the other from the Fe, whose spin interactions with Ti are modulated by the radio‐frequency electric field. The Fe contribution is comparable to the tip, as revealed by its dominance when the tip is retracted, and tunable using a vector magnetic field. The new ESR scheme allows on‐surface individual spins to be addressed and coherently controlled without the need for magnetic interaction with a tip. This study establishes a feasible implementation of spin‐based multi‐qubit systems on surfaces.https://doi.org/10.1002/advs.202302033atom manipulationelectron spin resonanceRabi ratescanning tunneling microscopysingle spin qubitsingle‐atom magnet |
| spellingShingle | Soo‐hyon Phark Hong Thi Bui Alejandro Ferrón Joaquin Fernández‐Rossier Jose Reina‐Gálvez Christoph Wolf Yu Wang Kai Yang Andreas J. Heinrich Christopher P. Lutz Electric‐Field‐Driven Spin Resonance by On‐Surface Exchange Coupling to a Single‐Atom Magnet Advanced Science atom manipulation electron spin resonance Rabi rate scanning tunneling microscopy single spin qubit single‐atom magnet |
| title | Electric‐Field‐Driven Spin Resonance by On‐Surface Exchange Coupling to a Single‐Atom Magnet |
| title_full | Electric‐Field‐Driven Spin Resonance by On‐Surface Exchange Coupling to a Single‐Atom Magnet |
| title_fullStr | Electric‐Field‐Driven Spin Resonance by On‐Surface Exchange Coupling to a Single‐Atom Magnet |
| title_full_unstemmed | Electric‐Field‐Driven Spin Resonance by On‐Surface Exchange Coupling to a Single‐Atom Magnet |
| title_short | Electric‐Field‐Driven Spin Resonance by On‐Surface Exchange Coupling to a Single‐Atom Magnet |
| title_sort | electric field driven spin resonance by on surface exchange coupling to a single atom magnet |
| topic | atom manipulation electron spin resonance Rabi rate scanning tunneling microscopy single spin qubit single‐atom magnet |
| url | https://doi.org/10.1002/advs.202302033 |
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