Issue 39, 2020

Amination of the Gd@C82 endohedral fullerene: tunable substitution effect on quantum coherence behaviors

Abstract

The core–shell structure of endohedral fullerene-based anisotropic magnetic molecules of high spin with long coherence time could help scale up quantum systems. In this research, by amination of Gd@C82 with morpholine, three derivatives are functionalized with 5, 7 and 9 morpholine groups providing an interesting model to investigate the relationship between the quantum coherence and the spin environment. The original radical located on the carbon cage is successfully quenched, affording a quantum phase memory times (TM) over 5 μs at 5 K. By increasing the number of substitution groups, spin–lattice relaxation times (T1) also show significant enhancement due to the interaction variation between the molecules and the environments. We found that the TM of the three molecules show no obvious difference below 10 K, while they are limited by T1 at higher temperatures. In this work, the variable functional groups are able to tune both T1 and TM, offering the possibility for application of high-spin magnetic molecules in the field of quantum information processing.

Graphical abstract: Amination of the Gd@C82 endohedral fullerene: tunable substitution effect on quantum coherence behaviors

Supplementary files

Article information

Article type
Edge Article
Submitted
17 Apr 2020
Accepted
28 May 2020
First published
28 May 2020
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY license

Chem. Sci., 2020,11, 10737-10743

Amination of the Gd@C82 endohedral fullerene: tunable substitution effect on quantum coherence behaviors

Z. Liu, H. Huang, Y. Wang, B. Dong, B. Sun, S. Jiang and S. Gao, Chem. Sci., 2020, 11, 10737 DOI: 10.1039/D0SC02182B

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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