.png){kind=icon}
返回
Electronic Spin Qubit Candidates Arrayed within Layered Two-Dimensional Polymers
.png){kind=icon}
OA
AI
DOI：10.1021/jacs.2c11784.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Molecular electronic spin qubits are promising candidates for quantum information science applications because they can be reliably produced and engineered via chemical design. Embedding electronic spin qubits within two-dimensional polymers (2DPs) offers the possibility to systematically engineer inter-qubit interactions while maintaining long coherence times, both of which are prerequisites to their technological utility. Here, we introduce electronic spin qubits into a diamagnetic 2DP by n-doping naphthalene diimide subunits with varying amounts of CoCp2 and analyze their spin densities by quantitative electronic paramagnetic resonance spectroscopy. Low spin densities (e.g., 6.0 x 10(12) spins mm(-3)) enable lengthy spin-lattice (T-1) and spin-spin relaxation (T-2) times across a range of temperatures, ranging from T-1 values of 164 ms at 10 K to 30.2 mu s at 296 K and T-2 values of 2.36 mu s at 10 K to 0.49 mu s at 296 K for the lowest spin density sample examined. Higher spin densities and temperatures were both found to diminish T-1 times, which we attribute to detrimental cross-relaxation from spinspin dipolar interactions and spin-phonon coupling, respectively. Higher spin densities decreased T-2 times and modulated the T-2 temperature dependence. We attribute these differences to the competition between hyperfine and dipolar interactions for electron spin decoherence, with the dominant interaction transitioning from the former to the latter as spin density and temperature increase. Overall, this investigation demonstrates that dispersing electronic spin qubits within layered 2DPs enables chemical control of their inter-qubit interactions and spin decoherence times.
Keyword:
COVALENT ORGANIC FRAMEWORKS
2D ARRAYS
RELAXATION
COHERENCE
RADICALS
CENTERS
DESIGN
期刊
IF:
15.6
论文数:
20.0W
被引数:
60.2W
机构
引用论文
Controlled n-Doping of Naphthalene-Diimide-Based 2D Polymers基于萘二酰亚胺的二维聚合物的可控n掺杂.png)
ADVANCED MATERIALSOAAI
ADVANCED MATERIALSIF26.8
OAAI分享收藏Covalent Organic Frameworks as a Platform for Multidimensional Polymerization共价有机框架作为多维聚合的平台ACS CENTRAL SCIENCE
OAAI
ACS CENTRAL SCIENCEIF10.4
OAAI分享收藏Exploiting chemistry and molecular systems for quantum information scienceNATURE REVIEWS CHEMISTRY
NATURE REVIEWS CHEMISTRYIF51.7
PREAI
分享收藏
查看更多内容