Electric-Field-Driven Spin Resonance by On-Surface Exchange Coupling to a Single-Atom Magnet

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

doi:10.1002/advs.202302033

Electric-Field-Driven Spin Resonance by On-Surface Exchange Coupling to a Single-Atom Magnet

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

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.

Original language	English
Article number	2302033
Journal	Advanced Science
Volume	10
Issue number	27
DOIs	https://doi.org/10.1002/advs.202302033
State	Published - 26 Sep 2023

Bibliographical note

Funding Information:
The authors thank Harald Brune for fruitful discussions and comments on the manuscript. C.P.L. acknowledges support from the U.S. Department of Navy under award N00014-21-1-2467 issued by the Office of Naval Research. S.P., H.T.B., Y.W., J.R-G., C.W., and A.J.H. acknowledge support from the Institute for Basic Science (IBS-R027-D1). J.F.R. acknowledges support from FCT (Grant No. PTDC/FIS-MAC/2045/2021), Swiss National Foundation Sinergia (Grant Pimag), Generalitat Valenciana (Prometeo2021/017 and MFA/2022/045), and MICIIN-Spain (Grant No. PID2019-109539GB-C41).

Funding Information:
The authors thank Harald Brune for fruitful discussions and comments on the manuscript. C.P.L. acknowledges support from the U.S. Department of Navy under award N00014‐21‐1‐2467 issued by the Office of Naval Research. S.P., H.T.B., Y.W., J.R‐G., C.W., and A.J.H. acknowledge support from the Institute for Basic Science (IBS‐R027‐D1). J.F.R. acknowledges support from FCT (Grant No. PTDC/FIS‐MAC/2045/2021), Swiss National Foundation Sinergia (Grant Pimag), Generalitat Valenciana (Prometeo2021/017 and MFA/2022/045), and MICIIN‐Spain (Grant No. PID2019‐109539GB‐C41).

Publisher Copyright:
© 2023 The Authors. Advanced Science published by Wiley-VCH GmbH.

Keywords

Rabi rate
atom manipulation
electron spin resonance
scanning tunneling microscopy
single spin qubit
single-atom magnet

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10.1002/advs.202302033

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@article{f6067c60e4d747be927f52fb286d645d,

title = "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-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.",

keywords = "Rabi rate, atom manipulation, electron spin resonance, scanning tunneling microscopy, single spin qubit, single-atom magnet",

author = "Phark, {Soo hyon} and Bui, {Hong Thi} and Alejandro Ferr{\'o}n and Joaquin Fern{\'a}ndez-Rossier and Jose Reina-G{\'a}lvez and Christoph Wolf and Yu Wang and Kai Yang and Heinrich, {Andreas J.} and Lutz, {Christopher P.}",

note = "Funding Information: The authors thank Harald Brune for fruitful discussions and comments on the manuscript. C.P.L. acknowledges support from the U.S. Department of Navy under award N00014-21-1-2467 issued by the Office of Naval Research. S.P., H.T.B., Y.W., J.R-G., C.W., and A.J.H. acknowledge support from the Institute for Basic Science (IBS-R027-D1). J.F.R. acknowledges support from FCT (Grant No. PTDC/FIS-MAC/2045/2021), Swiss National Foundation Sinergia (Grant Pimag), Generalitat Valenciana (Prometeo2021/017 and MFA/2022/045), and MICIIN-Spain (Grant No. PID2019-109539GB-C41). Funding Information: The authors thank Harald Brune for fruitful discussions and comments on the manuscript. C.P.L. acknowledges support from the U.S. Department of Navy under award N00014‐21‐1‐2467 issued by the Office of Naval Research. S.P., H.T.B., Y.W., J.R‐G., C.W., and A.J.H. acknowledge support from the Institute for Basic Science (IBS‐R027‐D1). J.F.R. acknowledges support from FCT (Grant No. PTDC/FIS‐MAC/2045/2021), Swiss National Foundation Sinergia (Grant Pimag), Generalitat Valenciana (Prometeo2021/017 and MFA/2022/045), and MICIIN‐Spain (Grant No. PID2019‐109539GB‐C41). Publisher Copyright: {\textcopyright} 2023 The Authors. Advanced Science published by Wiley-VCH GmbH.",

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AU - Phark, Soo hyon

AU - Bui, Hong Thi

AU - Ferrón, Alejandro

AU - Fernández-Rossier, Joaquin

AU - Reina-Gálvez, Jose

AU - Wolf, Christoph

AU - Wang, Yu

AU - Yang, Kai

AU - Heinrich, Andreas J.

AU - Lutz, Christopher P.

N1 - Funding Information: The authors thank Harald Brune for fruitful discussions and comments on the manuscript. C.P.L. acknowledges support from the U.S. Department of Navy under award N00014-21-1-2467 issued by the Office of Naval Research. S.P., H.T.B., Y.W., J.R-G., C.W., and A.J.H. acknowledge support from the Institute for Basic Science (IBS-R027-D1). J.F.R. acknowledges support from FCT (Grant No. PTDC/FIS-MAC/2045/2021), Swiss National Foundation Sinergia (Grant Pimag), Generalitat Valenciana (Prometeo2021/017 and MFA/2022/045), and MICIIN-Spain (Grant No. PID2019-109539GB-C41). Funding Information: The authors thank Harald Brune for fruitful discussions and comments on the manuscript. C.P.L. acknowledges support from the U.S. Department of Navy under award N00014‐21‐1‐2467 issued by the Office of Naval Research. S.P., H.T.B., Y.W., J.R‐G., C.W., and A.J.H. acknowledge support from the Institute for Basic Science (IBS‐R027‐D1). J.F.R. acknowledges support from FCT (Grant No. PTDC/FIS‐MAC/2045/2021), Swiss National Foundation Sinergia (Grant Pimag), Generalitat Valenciana (Prometeo2021/017 and MFA/2022/045), and MICIIN‐Spain (Grant No. PID2019‐109539GB‐C41). Publisher Copyright: © 2023 The Authors. Advanced Science published by Wiley-VCH GmbH.

PY - 2023/9/26

Y1 - 2023/9/26

N2 - 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.

AB - 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.

KW - Rabi rate

KW - atom manipulation

KW - electron spin resonance

KW - scanning tunneling microscopy

KW - single spin qubit

KW - single-atom magnet

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U2 - 10.1002/advs.202302033

DO - 10.1002/advs.202302033

M3 - Article

C2 - 37466177

AN - SCOPUS:85164913317

SN - 2198-3844

VL - 10

JO - Advanced Science

JF - Advanced Science

IS - 27

M1 - 2302033

ER -

Electric-Field-Driven Spin Resonance by On-Surface Exchange Coupling to a Single-Atom Magnet

Abstract

Bibliographical note

Keywords

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