Blatter-Radical-Grafted Mesoporous Silica as Prospective Nanoplatform for Spin Manipulation at Ambient Conditions

Artem S Poryvaev; Eva Gjuzi; Daniil M Polyukhov; Frank Hoffmann; Michael Fröba; Matvey V Fedin

doi:10.1002/anie.202015058

Blatter-Radical-Grafted Mesoporous Silica as Prospective Nanoplatform for Spin Manipulation at Ambient Conditions

Angew Chem Int Ed Engl. 2021 Apr 12;60(16):8683-8688. doi: 10.1002/anie.202015058. Epub 2021 Mar 9.

Authors

Artem S Poryvaev^{1

2}, Eva Gjuzi³, Daniil M Polyukhov¹, Frank Hoffmann³, Michael Fröba³, Matvey V Fedin^{1

2}

Affiliations

¹ International Tomography Center SB RAS, Novosibirsk, 630090, Russia.
² Novosibirsk State University, Novosibirsk, 630090, Russia.
³ Institute of Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146, Hamburg, Germany.

Abstract

Quantum computing and quantum information processing (QC/QIP) crucially depend on the availability of suitable quantum bits (qubits) and methods of their manipulation. Most qubit candidates known to date are not applicable at ambient conditions. Herein, we propose radical-grafted mesoporous silica as a versatile and prospective nanoplatform for spin-based QC/QIP. Extremely stable Blatter-type organic radicals are used, whose electron spin decoherence time is profoundly long even at room temperature (up to T_m ≈2.3 μs), thus allowing efficient spin manipulation by microwave pulses. The mesoporous structure of such composites is nuclear-spin free and provides additional opportunities of embedding guest molecules into the channels. Robustness and tunability of these materials promotes them as highly promising nanoplatforms for future QC/QIP developments.

Keywords: EPR spectroscopy; mesoporous materials; mesoporous organosilica; qubits; radicals.

Abstract

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