Electron-Nuclear Coherent Coupling and Nuclear Spin Readout through Optically Polarized VB- Spin States in hBN.

Murzakhanov, FF; Mamin, GV; Orlinskii, SB; Gerstmann, U; Schmidt, WG; Biktagirov, T; Aharonovich, I; Gottscholl, A; Sperlich, A; Dyakonov, V; Soltamov, VA

Electron-Nuclear Coherent Coupling and Nuclear Spin Readout through Optically Polarized VB- Spin States in hBN.

Murzakhanov, FF Mamin, GV Orlinskii, SB Gerstmann, U Schmidt, WG Biktagirov, T Aharonovich, I

Gottscholl, A Sperlich, A Dyakonov, V Soltamov, VA

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Publisher:: American Chemical Society
Publication Type:: Journal Article
Citation:: Nano Letters: a journal dedicated to nanoscience and nanotechnology, 2022, 22, (7), pp. 2718-2724
Issue Date:: 2022-04-13

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Field	Value	Language
dc.contributor.author	Murzakhanov, FF
dc.contributor.author	Mamin, GV
dc.contributor.author	Orlinskii, SB
dc.contributor.author	Gerstmann, U
dc.contributor.author	Schmidt, WG
dc.contributor.author	Biktagirov, T
dc.contributor.author	Aharonovich, I https://orcid.org/0000-0003-4304-3935
dc.contributor.author	Gottscholl, A
dc.contributor.author	Sperlich, A
dc.contributor.author	Dyakonov, V
dc.contributor.author	Soltamov, VA
dc.date.accessioned	2022-11-17T01:00:29Z
dc.date.available	2022-11-17T01:00:29Z
dc.date.issued	2022-04-13
dc.identifier.citation	Nano Letters: a journal dedicated to nanoscience and nanotechnology, 2022, 22, (7), pp. 2718-2724
dc.identifier.issn	1530-6984
dc.identifier.issn	1530-6992
dc.identifier.uri	http://hdl.handle.net/10453/163531
dc.description.abstract	Coherent coupling of defect spins with surrounding nuclei along with the endowment to read out the latter are basic requirements for an application in quantum technologies. We show that negatively charged boron vacancies (VB-) in hexagonal boron nitride (hBN) meet these prerequisites. We demonstrate Hahn-echo coherence of the VB- spin with a characteristic decay time Tcoh = 15 μs, close to the theoretically predicted limit of 18 μs for defects in hBN. Elongation of the coherence time up to 36 μs is demonstrated by means of the Carr-Purcell-Meiboom-Gill decoupling technique. Modulation of the Hahn-echo decay is shown to be induced by coherent coupling of the VB- spin with the three nearest 14N nuclei via a nuclear quadrupole interaction of 2.11 MHz. DFT calculation confirms that the electron-nuclear coupling is confined to the defective layer and stays almost unchanged with a transition from the bulk to the single layer.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	American Chemical Society
dc.relation	http://purl.org/au-research/grants/arc/CE200100010
dc.relation.ispartof	Nano Letters: a journal dedicated to nanoscience and nanotechnology
dc.relation.isbasedon	10.1021/acs.nanolett.1c04610
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Nanoscience & Nanotechnology
dc.title	Electron-Nuclear Coherent Coupling and Nuclear Spin Readout through Optically Polarized VB- Spin States in hBN.
dc.type	Journal Article
utslib.citation.volume	22
utslib.location.activity	United States
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-11-17T01:00:26Z
pubs.issue	7
pubs.publication-status	Published
pubs.volume	22
utslib.citation.issue	7

Abstract:

Coherent coupling of defect spins with surrounding nuclei along with the endowment to read out the latter are basic requirements for an application in quantum technologies. We show that negatively charged boron vacancies (VB-) in hexagonal boron nitride (hBN) meet these prerequisites. We demonstrate Hahn-echo coherence of the VB- spin with a characteristic decay time Tcoh = 15 μs, close to the theoretically predicted limit of 18 μs for defects in hBN. Elongation of the coherence time up to 36 μs is demonstrated by means of the Carr-Purcell-Meiboom-Gill decoupling technique. Modulation of the Hahn-echo decay is shown to be induced by coherent coupling of the VB- spin with the three nearest 14N nuclei via a nuclear quadrupole interaction of 2.11 MHz. DFT calculation confirms that the electron-nuclear coupling is confined to the defective layer and stays almost unchanged with a transition from the bulk to the single layer.

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http://hdl.handle.net/10453/163531