Topologically-imposed vacancies and mobile solid 3He on carbon nanotube

I. Todoshchenko; M. Kamada; J. P. Kaikkonen; Y. Liao; A. Savin; M. Will; E. Sergeicheva; T. S. Abhilash; E. Kauppinen; P. J. Hakonen

doi:10.1038/s41467-022-33539-8

Topologically-imposed vacancies and mobile solid ³He on carbon nanotube

I. Todoshchenko^*
, M. Kamada
, J. P. Kaikkonen
, Y. Liao
, A. Savin
, M. Will
, E. Sergeicheva
, T. S. Abhilash
, E. Kauppinen
, P. J. Hakonen

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

10 Viittaukset (Web of Science)

93 Lataukset (Pure)

Abstrakti

Low dimensional fermionic quantum systems are exceptionally interesting because they reveal distinctive physical phenomena, including among others, topologically protected excitations, edge states, frustration, and fractionalization. Our aim was to confine ³He on a suspended carbon nanotube to form 2-dimensional Fermi-system. Here we report our measurements of the mechanical resonance of the nanotube with adsorbed sub-monolayer down to 10 mK. At intermediate coverages we have observed the famous 1/3 commensurate solid. However, at larger monolayer densities we have observed a quantum phase transition from 1/3 solid to an unknown, soft, and mobile solid phase. We interpret this mobile solid phase as a bosonic commensurate crystal consisting of helium dimers with topologically-induced zero-point vacancies which are delocalized at low temperatures. We thus demonstrate that ³He on a nanotube merges both fermionic and bosonic phenomena, with a quantum phase transition between fermionic solid 1/3 phase and the observed bosonic dimer solid.

Alkuperäiskieli	Englanti
Artikkeli	5873
Sivut	1-9
Sivumäärä	9
Julkaisu	Nature Communications
Vuosikerta	13
Numero	1
DOI - pysyväislinkit	https://doi.org/10.1038/s41467-022-33539-8
Tila	Julkaistu - 5 lokak. 2022
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Rahoitus

We are grateful to Henri Godfrin, Ari Harju, Ville Havu, Andreas Huettel, Martti Puska, and Erkki Thuneberg for discussions, and Petri Tonteri from Densiq Ltd. (90620 Oulu, Finland) for providing us with the ultra-pure grafoil. We thank Miika Haataja for measuring the surface area of the grafoil sample and Qiang Zhang for participation in the optimization of the CNT process. Funding: This work was supported by Academy of Finland projects No. 314448 (BOLOSE), No. 312295 (CoE, Quantum Technology Finland), and No. 316572 (CNTstress). The research leading to these results has received funding from the European Union’s Horizon 2020 Research and Innovation Programme, under Grant Agreement No 824109 (EMP), under ERC Grant No. 670743 (QuDeT), and in part by Marie-Curie training network project (OMT, No. 722923). J.-P.K. is grateful for the financial support from Vilho, Yrjö and Kalle Väisälä Foundation of the Finnish Academy of Science and Letters. This research project utilized the Aalto University OtaNano/LTL infrastructure. We are grateful to Henri Godfrin, Ari Harju, Ville Havu, Andreas Huettel, Martti Puska, and Erkki Thuneberg for discussions, and Petri Tonteri from Densiq Ltd. (90620 Oulu, Finland) for providing us with the ultra-pure grafoil. We thank Miika Haataja for measuring the surface area of the grafoil sample and Qiang Zhang for participation in the optimization of the CNT process. Funding: This work was supported by Academy of Finland projects No. 314448 (BOLOSE), No. 312295 (CoE, Quantum Technology Finland), and No. 316572 (CNTstress). The research leading to these results has received funding from the European Union’s Horizon 2020 Research and Innovation Programme, under Grant Agreement No 824109 (EMP), under ERC Grant No. 670743 (QuDeT), and in part by Marie-Curie training network project (OMT, No. 722923). J.-P.K. is grateful for the financial support from Vilho, Yrjö and Kalle Väisälä Foundation of the Finnish Academy of Science and Letters. This research project utilized the Aalto University OtaNano/LTL infrastructure.

Pääsy asiakirjaan

10.1038/s41467-022-33539-8Lisenssi: CC BY

Topologically-imposed vacancies and mobile solid 3He on carbon nanotubeFinal published version, 1,5 MBLisenssi: CC BY

Muut tiedostot ja linkit

Linkki julkaisuun Scopuksessa

CNTstress: Hiilinanoputkimateriaalien käyttö sähkökoneiden jänniterasitusten lieventämisessä
Kauppinen, E. (Vastuullinen johtaja), Khan, M. (Projektin jäsen), Tavakkoli, M. (Projektin jäsen), Zhang, Q. (Projektin jäsen) & Ahmad, S. (Projektin jäsen)
01/09/2018 → 31/08/2022
Projekti: Academy of Finland: Other research funding
BOLOSO: Äärimmäisen herkät bolometrit turvallisuussovelluksiin
Hakonen, P. (Vastuullinen johtaja), Suresh, K. (Projektin jäsen), Zeng, W. (Projektin jäsen), Korkalainen, T. (Projektin jäsen), Perelshtein, M. (Projektin jäsen), Will, M. (Projektin jäsen), Manninen, J. (Projektin jäsen), Bhandari, P. (Projektin jäsen), Tomi, M. (Projektin jäsen), Kumar, M. (Projektin jäsen) & Kamada, M. (Projektin jäsen)
01/01/2018 → 31/08/2022
Projekti: Academy of Finland: Other research funding
Kvanttiteknologian huippuyksikkö
Hakonen, P. (Vastuullinen johtaja), Suresh, K. (Projektin jäsen), Kumar, M. (Projektin jäsen) & Elo, T. (Projektin jäsen)
01/01/2018 → 31/12/2020
Projekti: Academy of Finland: Other research funding

OtaNano
Rissanen, A. (Manager)
Aalto-yliopisto
Laitteistot/tilat: Facility
OtaNano – Kylmälaboratorio
Savin, A. (Manager) & Rissanen, A. (Other)
OtaNano
Laitteistot/tilat: Facility

Topologically-imposed vacancies and mobile solid 3He on carbon nanotube
Havu, V.
26/10/2022
1 kohde/ Medianäkyvyys
Lehdistö/media: Esiintyminen mediassa

Siteeraa tätä

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abstract = "Low dimensional fermionic quantum systems are exceptionally interesting because they reveal distinctive physical phenomena, including among others, topologically protected excitations, edge states, frustration, and fractionalization. Our aim was to confine 3He on a suspended carbon nanotube to form 2-dimensional Fermi-system. Here we report our measurements of the mechanical resonance of the nanotube with adsorbed sub-monolayer down to 10 mK. At intermediate coverages we have observed the famous 1/3 commensurate solid. However, at larger monolayer densities we have observed a quantum phase transition from 1/3 solid to an unknown, soft, and mobile solid phase. We interpret this mobile solid phase as a bosonic commensurate crystal consisting of helium dimers with topologically-induced zero-point vacancies which are delocalized at low temperatures. We thus demonstrate that 3He on a nanotube merges both fermionic and bosonic phenomena, with a quantum phase transition between fermionic solid 1/3 phase and the observed bosonic dimer solid.",

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AU - Todoshchenko, I.

AU - Kamada, M.

AU - Kaikkonen, J. P.

AU - Liao, Y.

AU - Savin, A.

AU - Will, M.

AU - Sergeicheva, E.

AU - Abhilash, T. S.

AU - Kauppinen, E.

AU - Hakonen, P. J.

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N2 - Low dimensional fermionic quantum systems are exceptionally interesting because they reveal distinctive physical phenomena, including among others, topologically protected excitations, edge states, frustration, and fractionalization. Our aim was to confine 3He on a suspended carbon nanotube to form 2-dimensional Fermi-system. Here we report our measurements of the mechanical resonance of the nanotube with adsorbed sub-monolayer down to 10 mK. At intermediate coverages we have observed the famous 1/3 commensurate solid. However, at larger monolayer densities we have observed a quantum phase transition from 1/3 solid to an unknown, soft, and mobile solid phase. We interpret this mobile solid phase as a bosonic commensurate crystal consisting of helium dimers with topologically-induced zero-point vacancies which are delocalized at low temperatures. We thus demonstrate that 3He on a nanotube merges both fermionic and bosonic phenomena, with a quantum phase transition between fermionic solid 1/3 phase and the observed bosonic dimer solid.

AB - Low dimensional fermionic quantum systems are exceptionally interesting because they reveal distinctive physical phenomena, including among others, topologically protected excitations, edge states, frustration, and fractionalization. Our aim was to confine 3He on a suspended carbon nanotube to form 2-dimensional Fermi-system. Here we report our measurements of the mechanical resonance of the nanotube with adsorbed sub-monolayer down to 10 mK. At intermediate coverages we have observed the famous 1/3 commensurate solid. However, at larger monolayer densities we have observed a quantum phase transition from 1/3 solid to an unknown, soft, and mobile solid phase. We interpret this mobile solid phase as a bosonic commensurate crystal consisting of helium dimers with topologically-induced zero-point vacancies which are delocalized at low temperatures. We thus demonstrate that 3He on a nanotube merges both fermionic and bosonic phenomena, with a quantum phase transition between fermionic solid 1/3 phase and the observed bosonic dimer solid.

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EP - 9

JO - Nature Communications

JF - Nature Communications

IS - 1

M1 - 5873

ER -

Topologically-imposed vacancies and mobile solid 3He on carbon nanotube

Abstrakti

Rahoitus

Pääsy asiakirjaan

Muut tiedostot ja linkit

Sormenjälki

Projektit

CNTstress: Hiilinanoputkimateriaalien käyttö sähkökoneiden jänniterasitusten lieventämisessä

BOLOSO: Äärimmäisen herkät bolometrit turvallisuussovelluksiin

Kvanttiteknologian huippuyksikkö

Laitteet

OtaNano

OtaNano – Kylmälaboratorio

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