Hydrogenic spin-valley states of the bromine donor in 2H-MoTe2

Valeria Sheina; Guillaume Lang; Vasily Stolyarov; Vyacheslav Marchenkov; Sergey Naumov; Alexandra Perevalova; Jean Christophe Girard; Guillemin Rodary; Christophe David; Leonnel Romuald Sop; Debora Pierucci; Abdelkarim Ouerghi; Jean Louis Cantin; Brigitte Leridon; Mahdi Ghorbani-Asl; Arkady V. Krasheninnikov; Hervé Aubin

doi:10.1038/s42005-023-01244-7

Hydrogenic spin-valley states of the bromine donor in 2H-MoTe₂

Valeria Sheina
, Guillaume Lang
, Vasily Stolyarov
, Vyacheslav Marchenkov
, Sergey Naumov
, Alexandra Perevalova
, Jean Christophe Girard
, Guillemin Rodary
, Christophe David
, Leonnel Romuald Sop
, Debora Pierucci
, Abdelkarim Ouerghi
, Jean Louis Cantin
, Brigitte Leridon
, Mahdi Ghorbani-Asl
, Arkady V. Krasheninnikov
, Hervé Aubin^*

^*Corresponding author for this work

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

4 Citations (Scopus)

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Abstract

In semiconductors, the identification of doping atomic elements allowing to encode a qubit within spin states is of intense interest for quantum technologies. In transition metal dichalcogenides semiconductors, the strong spin-orbit coupling produces locked spin-valley states with expected long coherence time. Here we study the substitutional Bromine Br_Te dopant in 2H-MoTe₂. Electron spin resonance measurements show that this dopant carries a spin with long-lived nanoseconds coherence time. Using scanning tunneling spectroscopy, we find that the hydrogenic wavefunctions associated with the dopant levels have characteristics spatial modulations that result from their hybridization to the Q-valleys of the conduction band. From a Fourier analysis of the conductance maps, we find that the amplitude and phase of the Fourier components change with energy according to the different irreducible representations of the impurity-site point-group symmetry. These results demonstrate that a dopant can inherit the locked spin-valley properties of the semiconductor and so exhibit long spin-coherence time.

Original language	English
Article number	135
Pages (from-to)	1-11
Number of pages	11
Journal	Communications Physics
Volume	6
Issue number	1
DOIs	https://doi.org/10.1038/s42005-023-01244-7
Publication status	Published - 9 Jun 2023
MoE publication type	A1 Journal article-refereed

Funding

We acknowledge financial support from ANR MECHASPIN Grant No. ANR-17-CE24-0024-02 and ANR FRONTAL Grant No. ANR-19-CE09-0017-02. We acknowledge support from the CNRS research infrastructure RENARD (FR 3443) for EPR facilities. The crystal growth was carried out within the state assignment of Ministry of Science and Higher Education of the Russian Federation (theme “Spin” No. 122021000036-3). The transport experiments at ESPCI have been supported by a Sesame Grant from the Région Ile de France Council. The Scanning Tunneling Spectroscopy at 77K partially supported by RSF (No. 21-72-30026 https://rscf.ru/en/project/21-72-30026/ ). Sample preparation for UHV STM studies was supported by the Ministry of Science and Higher Education of the Russian Federation (No. FSMG-2023-0014) and Federal Academic Leadership Program Priority 2030 (NUST MISIS Grant No. K2-2022-029). The computational support from the Technical University of Dresden computing cluster (TAURUS), from High Performance Computing Center (HLRS) in Stuttgart, Germany is gratefully appreciated. A.V.K. acknowledges funding from the German Research Foundation (DFG), Project KR 4866/9-1. We acknowledge useful discussions regarding samples with Dr. B. Fauqué. We thank Pr. H. Dery, Dr. CM. Gilardoni and Pr. M. Guimaraes for careful reading of the manuscript and suggestions. We acknowledge financial support from ANR MECHASPIN Grant No. ANR-17-CE24-0024-02 and ANR FRONTAL Grant No. ANR-19-CE09-0017-02. We acknowledge support from the CNRS research infrastructure RENARD (FR 3443) for EPR facilities. The crystal growth was carried out within the state assignment of Ministry of Science and Higher Education of the Russian Federation (theme “Spin” No. 122021000036-3). The transport experiments at ESPCI have been supported by a Sesame Grant from the Région Ile de France Council. The Scanning Tunneling Spectroscopy at 77K partially supported by RSF (No. 21-72-30026 https://rscf.ru/en/project/21-72-30026/). Sample preparation for UHV STM studies was supported by the Ministry of Science and Higher Education of the Russian Federation (No. FSMG-2023-0014) and Federal Academic Leadership Program Priority 2030 (NUST MISIS Grant No. K2-2022-029). The computational support from the Technical University of Dresden computing cluster (TAURUS), from High Performance Computing Center (HLRS) in Stuttgart, Germany is gratefully appreciated. A.V.K. acknowledges funding from the German Research Foundation (DFG), Project KR 4866/9-1. We acknowledge useful discussions regarding samples with Dr. B. Fauqué. We thank Pr. H. Dery, Dr. CM. Gilardoni and Pr. M. Guimaraes for careful reading of the manuscript and suggestions.

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Hydrogenic spin-valley states of the bromine donor in 2H-MoTe2Final published version, 2.57 MBLicence: CC BY

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Sheina, V., Lang, G., Stolyarov, V., Marchenkov, V., Naumov, S., Perevalova, A., Girard, J. C., Rodary, G., David, C., Sop, L. R., Pierucci, D., Ouerghi, A., Cantin, J. L., Leridon, B., Ghorbani-Asl, M., Krasheninnikov, A. V., & Aubin, H. (2023). Hydrogenic spin-valley states of the bromine donor in 2H-MoTe₂. Communications Physics, 6(1), 1-11. Article 135. https://doi.org/10.1038/s42005-023-01244-7

@article{3ba3b158e1f44c1ca33b5bd965aa1fa4,

title = "Hydrogenic spin-valley states of the bromine donor in 2H-MoTe2",

abstract = "In semiconductors, the identification of doping atomic elements allowing to encode a qubit within spin states is of intense interest for quantum technologies. In transition metal dichalcogenides semiconductors, the strong spin-orbit coupling produces locked spin-valley states with expected long coherence time. Here we study the substitutional Bromine BrTe dopant in 2H-MoTe2. Electron spin resonance measurements show that this dopant carries a spin with long-lived nanoseconds coherence time. Using scanning tunneling spectroscopy, we find that the hydrogenic wavefunctions associated with the dopant levels have characteristics spatial modulations that result from their hybridization to the Q-valleys of the conduction band. From a Fourier analysis of the conductance maps, we find that the amplitude and phase of the Fourier components change with energy according to the different irreducible representations of the impurity-site point-group symmetry. These results demonstrate that a dopant can inherit the locked spin-valley properties of the semiconductor and so exhibit long spin-coherence time.",

author = "Valeria Sheina and Guillaume Lang and Vasily Stolyarov and Vyacheslav Marchenkov and Sergey Naumov and Alexandra Perevalova and Girard, \{Jean Christophe\} and Guillemin Rodary and Christophe David and Sop, \{Leonnel Romuald\} and Debora Pierucci and Abdelkarim Ouerghi and Cantin, \{Jean Louis\} and Brigitte Leridon and Mahdi Ghorbani-Asl and Krasheninnikov, \{Arkady V.\} and Herv{\'e} Aubin",

note = "Funding Information: We acknowledge financial support from ANR MECHASPIN Grant No. ANR-17-CE24-0024-02 and ANR FRONTAL Grant No. ANR-19-CE09-0017-02. We acknowledge support from the CNRS research infrastructure RENARD (FR 3443) for EPR facilities. The crystal growth was carried out within the state assignment of Ministry of Science and Higher Education of the Russian Federation (theme “Spin” No. 122021000036-3). The transport experiments at ESPCI have been supported by a Sesame Grant from the R{\'e}gion Ile de France Council. The Scanning Tunneling Spectroscopy at 77K partially supported by RSF (No. 21-72-30026 https://rscf.ru/en/project/21-72-30026/ ). Sample preparation for UHV STM studies was supported by the Ministry of Science and Higher Education of the Russian Federation (No. FSMG-2023-0014) and Federal Academic Leadership Program Priority 2030 (NUST MISIS Grant No. K2-2022-029). The computational support from the Technical University of Dresden computing cluster (TAURUS), from High Performance Computing Center (HLRS) in Stuttgart, Germany is gratefully appreciated. A.V.K. acknowledges funding from the German Research Foundation (DFG), Project KR 4866/9-1. We acknowledge useful discussions regarding samples with Dr. B. Fauqu{\'e}. We thank Pr. H. Dery, Dr. CM. Gilardoni and Pr. M. Guimaraes for careful reading of the manuscript and suggestions. ",

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month = jun,

day = "9",

doi = "10.1038/s42005-023-01244-7",

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Sheina, V, Lang, G, Stolyarov, V, Marchenkov, V, Naumov, S, Perevalova, A, Girard, JC, Rodary, G, David, C, Sop, LR, Pierucci, D, Ouerghi, A, Cantin, JL, Leridon, B, Ghorbani-Asl, M, Krasheninnikov, AV & Aubin, H 2023, 'Hydrogenic spin-valley states of the bromine donor in 2H-MoTe₂', Communications Physics, vol. 6, no. 1, 135, pp. 1-11. https://doi.org/10.1038/s42005-023-01244-7

TY - JOUR

T1 - Hydrogenic spin-valley states of the bromine donor in 2H-MoTe2

AU - Sheina, Valeria

AU - Lang, Guillaume

AU - Stolyarov, Vasily

AU - Marchenkov, Vyacheslav

AU - Naumov, Sergey

AU - Perevalova, Alexandra

AU - Girard, Jean Christophe

AU - Rodary, Guillemin

AU - David, Christophe

AU - Sop, Leonnel Romuald

AU - Pierucci, Debora

AU - Ouerghi, Abdelkarim

AU - Cantin, Jean Louis

AU - Leridon, Brigitte

AU - Ghorbani-Asl, Mahdi

AU - Krasheninnikov, Arkady V.

AU - Aubin, Hervé

N1 - Funding Information: We acknowledge financial support from ANR MECHASPIN Grant No. ANR-17-CE24-0024-02 and ANR FRONTAL Grant No. ANR-19-CE09-0017-02. We acknowledge support from the CNRS research infrastructure RENARD (FR 3443) for EPR facilities. The crystal growth was carried out within the state assignment of Ministry of Science and Higher Education of the Russian Federation (theme “Spin” No. 122021000036-3). The transport experiments at ESPCI have been supported by a Sesame Grant from the Région Ile de France Council. The Scanning Tunneling Spectroscopy at 77K partially supported by RSF (No. 21-72-30026 https://rscf.ru/en/project/21-72-30026/ ). Sample preparation for UHV STM studies was supported by the Ministry of Science and Higher Education of the Russian Federation (No. FSMG-2023-0014) and Federal Academic Leadership Program Priority 2030 (NUST MISIS Grant No. K2-2022-029). The computational support from the Technical University of Dresden computing cluster (TAURUS), from High Performance Computing Center (HLRS) in Stuttgart, Germany is gratefully appreciated. A.V.K. acknowledges funding from the German Research Foundation (DFG), Project KR 4866/9-1. We acknowledge useful discussions regarding samples with Dr. B. Fauqué. We thank Pr. H. Dery, Dr. CM. Gilardoni and Pr. M. Guimaraes for careful reading of the manuscript and suggestions.

PY - 2023/6/9

Y1 - 2023/6/9

N2 - In semiconductors, the identification of doping atomic elements allowing to encode a qubit within spin states is of intense interest for quantum technologies. In transition metal dichalcogenides semiconductors, the strong spin-orbit coupling produces locked spin-valley states with expected long coherence time. Here we study the substitutional Bromine BrTe dopant in 2H-MoTe2. Electron spin resonance measurements show that this dopant carries a spin with long-lived nanoseconds coherence time. Using scanning tunneling spectroscopy, we find that the hydrogenic wavefunctions associated with the dopant levels have characteristics spatial modulations that result from their hybridization to the Q-valleys of the conduction band. From a Fourier analysis of the conductance maps, we find that the amplitude and phase of the Fourier components change with energy according to the different irreducible representations of the impurity-site point-group symmetry. These results demonstrate that a dopant can inherit the locked spin-valley properties of the semiconductor and so exhibit long spin-coherence time.

AB - In semiconductors, the identification of doping atomic elements allowing to encode a qubit within spin states is of intense interest for quantum technologies. In transition metal dichalcogenides semiconductors, the strong spin-orbit coupling produces locked spin-valley states with expected long coherence time. Here we study the substitutional Bromine BrTe dopant in 2H-MoTe2. Electron spin resonance measurements show that this dopant carries a spin with long-lived nanoseconds coherence time. Using scanning tunneling spectroscopy, we find that the hydrogenic wavefunctions associated with the dopant levels have characteristics spatial modulations that result from their hybridization to the Q-valleys of the conduction band. From a Fourier analysis of the conductance maps, we find that the amplitude and phase of the Fourier components change with energy according to the different irreducible representations of the impurity-site point-group symmetry. These results demonstrate that a dopant can inherit the locked spin-valley properties of the semiconductor and so exhibit long spin-coherence time.

UR - https://www.scopus.com/pages/publications/85163083121

U2 - 10.1038/s42005-023-01244-7

DO - 10.1038/s42005-023-01244-7

M3 - Article

AN - SCOPUS:85163083121

SN - 2399-3650

VL - 6

SP - 1

EP - 11

JO - Communications Physics

JF - Communications Physics

IS - 1

M1 - 135

ER -

Hydrogenic spin-valley states of the bromine donor in 2H-MoTe₂

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