TY - JOUR

T1 - Paramagnetic Gas Adsorbed in Metal-Organic Framework: A Promising Platform for Spin Qubits Design

AU - Yazikova, Anastasiya A.

AU - Tomilov, Aleksandr S.

AU - Afimchenko, Nikita A.

AU - Zilberberg, Igor L.

AU - Melnikov, Anatoly R.

AU - Smirnova, Kristina A.

AU - Poryvaev, Artem S.

AU - Fedin, Matvey V.

N1 - The work was supported by Russian Science Foundation (grant no. 22-73-10239).

PY - 2025/4/16

Y1 - 2025/4/16

N2 - Development of viable quantum bits (qubits) is currently among the main challenges in quantum technologies. One approach to this problem that utilizes the potential of synthetic chemistry is the creation of molecular spin qubits (MSQs). Metal-organic frameworks (MOFs) are promising materials for scaling up MSQ systems while also exhibiting useful sorption properties. We report the adsorption of paramagnetic nitric oxide (NO) in MOF-808 and its modifications and for the first time propose an adsorbed “gas@MOF” concept to design MSQs. Continuous-wave electron paramagnetic resonance (CW EPR) allowed monitoring of the NO adsorption process that occurs at temperatures below 150 K and leads to immobilization of NO molecules within the MOF-808 matrix. Electron decoherence times Tm acquired by pulse EPR were found sufficiently long to perform simple spin manipulations (∼1.5 μs), which was demonstrated by a Rabi-oscillation experiment. Thus, gas molecules adsorbed in MOFs, “gas@MOF”, can act as potential spin qubits, as was exemplified by NO@MOF-808 as a proof of principle, and can be further extended to other paramagnetic gases and various MOFs.

AB - Development of viable quantum bits (qubits) is currently among the main challenges in quantum technologies. One approach to this problem that utilizes the potential of synthetic chemistry is the creation of molecular spin qubits (MSQs). Metal-organic frameworks (MOFs) are promising materials for scaling up MSQ systems while also exhibiting useful sorption properties. We report the adsorption of paramagnetic nitric oxide (NO) in MOF-808 and its modifications and for the first time propose an adsorbed “gas@MOF” concept to design MSQs. Continuous-wave electron paramagnetic resonance (CW EPR) allowed monitoring of the NO adsorption process that occurs at temperatures below 150 K and leads to immobilization of NO molecules within the MOF-808 matrix. Electron decoherence times Tm acquired by pulse EPR were found sufficiently long to perform simple spin manipulations (∼1.5 μs), which was demonstrated by a Rabi-oscillation experiment. Thus, gas molecules adsorbed in MOFs, “gas@MOF”, can act as potential spin qubits, as was exemplified by NO@MOF-808 as a proof of principle, and can be further extended to other paramagnetic gases and various MOFs.

KW - Electron paramagnetic resonance spectroscopy

KW - Metal organic frameworks

KW - Molecules

KW - Quantum mechanics

KW - Sorption

UR - https://www.mendeley.com/catalogue/03a35d72-9428-3047-9a58-83bbe0b5b733/

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-105003287793&origin=inward&txGid=fd21e56db6fdfbb5dc4a7d7394069c1b

U2 - 10.1021/acs.jpcc.5c01670

DO - 10.1021/acs.jpcc.5c01670

M3 - Article

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

ER -