Molecular qubits based on potentially nuclear-spin-free nickel ions

被引：22

作者：

Bader, K. ^{[1
]}

Schlindwein, S. H. ^{[2
]}

Gudat, D. ^{[2
]}

van Slageren, J. ^{[1
,3
]}

机构：

[1] Univ Stuttgart, Inst Phys Chem, Pfaffenwaldring 55, D-70569 Stuttgart, Germany

[2] Univ Stuttgart, Inst Anorgan Chem, Pfaffenwaldring 55, D-70569 Stuttgart, Germany

[3] Ctr Integrated Quantum Sci & Technol IQST, Stuttgart, Germany

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2017年 / 19卷 / 03期

关键词：

ELECTRON-PARAMAGNETIC-RESONANCE; DESULFOVIBRIO-GIGAS HYDROGENASE; TEMPERATURE QUANTUM COHERENCE; LONG COHERENCE; COMPLEXES; CRYSTAL; TIMES; MALEONITRILEDITHIOLATE; RELAXATION; CENTERS;

D O I：

10.1039/c6cp08161d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Molecular qubits with the longest coherence times thus far are based on nuclear-spin-carrying central ions. These nuclear spins can cause quantum state leakage, which is detrimental to quantum algorithm performance. We present two novel molecular qubits based on potentially nuclear spin-free Ni in the formal oxidation state 3+. (d(20)- PPh4)[Ni(mnt)(2)] (Ni-mnt, mnt(2-) = maleonitrile-1,2-dithiolate) possesses a coherence time of up to 38.7 mu s at 7 K. Functionalization of the dithiolate ligand decreases the coherence time by a factor of only four in (HNEt3)[Ni(dip)(2)] (Ni-dip, dip(2-) = 3-(diphenylphosphoryl)-methylbenzene1,2- dithiolate), indicating that monoanionic Ni-dithiolene complexes are promising and robust building blocks for polynuclear molecular qubit gates.

引用

页码：2525 / 2529

页数：5

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