A Homebuilt ESE Spectrometer on the Basis of a High-Power Q-Band Microwave Bridge

Tkach, Igor; Baldansuren, Amgalanbaatar; Kalabukhova, Ekaterina N.; Лукин, С. Н.; Sitnikov, Aleksandr; Tsvir, A. V.; Ischenko, M.; Rosentzweig, Yu.; Roduner, Emil

doi:10.1007/s00723-008-0141-5

Cited by 26 publications

(16 citation statements)

References 20 publications

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“…EPR spectra were simulated using the Easyspin program. 58 All pulsed measurements were performed on a homebuilt Q-band EPR spectrometer, 59 where an Oxford Instruments CF935 continuous flow helium cryostat was used. The sample was dissolved in acetonitrile (1 mM), filled in quartz tubes, degassed by three freeze–pump–thaw cycles followed by flame sealing.…”

Section: Methodsmentioning

confidence: 99%

Exchange coupling and single molecule magnetism in redox-active tetraoxolene-bridged dilanthanide complexes

et al. 2018

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Section: Methodsmentioning

confidence: 99%

Exchange coupling and single molecule magnetism in redox-active tetraoxolene-bridged dilanthanide complexes

et al. 2018

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“…Compounds Ni-mnt and Ni-dip were prepared by published procedures. [27][28][29][30] All measurements were performed on a homebuilt pulsed Q-band EPR spectrometer, 36 with an Oxford Instruments CF935 continuous Helium flow cryostat. The samples were filled in quartz tubes, evacuated (powders) or degassed by three freeze-pump-thaw cycles (solutions) followed by flame sealing.…”

Section: Methodsmentioning

confidence: 99%

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

Bader

Schlindwein

Gudat

et al. 2017

Phys. Chem. Chem. Phys.

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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-PPh)[Ni(mnt)] (Ni-mnt, mnt = maleonitrile-1,2-dithiolate) possesses a coherence time of up to 38.7 μs at 7 K. Functionalization of the dithiolate ligand decreases the coherence time by a factor of only four in (HNEt)[Ni(dip)] (Ni-dip, dip = 3-(diphenylphosphoryl)-methylbenzene-1,2-dithiolate), indicating that monoanionic Ni-dithiolene complexes are promising and robust building blocks for polynuclear molecular qubit gates.

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“…The continuous wave (CW) EPR spectra were measured with a Bruker EMX EPR spectrometer at 9.47 GHz. The pulsed EPR spectra were recorded using a home-built spectrometer [22] operating at 35.0 GHz. The following pulse sequences were used: the Hahn echo 90…”

Section: Methodsmentioning

confidence: 99%

Quantum coherence in a triangular Cu₃complex

et al. 2013

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We report pulsed electron paramagnetic resonance investigations on [(CuL) 3 (OH)](ClO 4 ) 2 · H 2 O, where HL = (E)-2-((3-(methylamino)propylimino) methyl)phenol, to assess its suitability as a qubit. We measured spin-lattice relaxation times up to T 1 = 698(2) μs at 5 K in methanolic frozen solution. The spin-lattice relaxation is driven by the direct process. The phase memory time was determined to be up to T m = 1290(3) ns in methanolic frozen solution and T m = 392(5) ns in powder at 5 K, respectively. By means of both continuous waves and pulsed ENDOR spectroscopy, interactions to protons, nitrogen and copper nuclei were observed. The couplings to the protons were shown to be due to dipolar and through bond interactions.

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A Homebuilt ESE Spectrometer on the Basis of a High-Power Q-Band Microwave Bridge

Cited by 26 publications

References 20 publications

Exchange coupling and single molecule magnetism in redox-active tetraoxolene-bridged dilanthanide complexes

Exchange coupling and single molecule magnetism in redox-active tetraoxolene-bridged dilanthanide complexes

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

Quantum coherence in a triangular Cu₃complex

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A Homebuilt ESE Spectrometer on the Basis of a High-Power Q-Band Microwave Bridge

Cited by 26 publications

References 20 publications

Exchange coupling and single molecule magnetism in redox-active tetraoxolene-bridged dilanthanide complexes

Exchange coupling and single molecule magnetism in redox-active tetraoxolene-bridged dilanthanide complexes

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

Quantum coherence in a triangular Cu3complex

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Quantum coherence in a triangular Cu₃complex