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자연과학대학
물리학전공
Journal papers
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Electrically driven spin resonance of 4f electrons in a single atom on a surface
Title
Electrically driven spin resonance of 4f electrons in a single atom on a surface
Authors
Reale
;
Stefano
;
Hwang
;
Jiyoon
;
Oh
;
Jeongmin
;
Brune
;
Harald
;
Heinrich
;
Andreas J.
;
Donati
;
Fabio
;
Bae
;
Yujeong
Ewha Authors
Andreas Heinrich
;
Fabio Donati
;
배유정
SCOPUS Author ID
Andreas Heinrich
; Fabio Donati
; 배유정
Issue Date
2024
Journal Title
Nature Communications
ISSN
2041-1723
Citation
Nature Communications vol. 15, no. 1
Indexed
SCIE; SCOPUS
Document Type
Article
Abstract
A pivotal challenge in quantum technologies lies in reconciling long coherence times with efficient manipulation of the quantum states of a system. Lanthanide atoms, with their well-localized 4f electrons, emerge as a promising solution to this dilemma if provided with a rational design for manipulation and detection. Here we construct tailored spin structures to perform electron spin resonance on a single lanthanide atom using a scanning tunneling microscope. A magnetically coupled structure made of an erbium and a titanium atom enables us to both drive the erbium’s 4f electron spins and indirectly probe them through the titanium’s 3d electrons. The erbium spin states exhibit an extended spin relaxation time and a higher driving efficiency compared to 3d atoms with spin ½ in similarly coupled structures. Our work provides a new approach to accessing highly protected spin states, enabling their coherent control in an all-electric fashion. © The Author(s) 2024.
DOI
10.1038/s41467-024-49447-y
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