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Chinese Physics B 2021年第1期30卷 65-72页

作者： Ting-Xian Zhang Yong-Hui Zhang Cheng-Bin Li Ting-Yun Shi State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and MathematicsInnovation Academy for Precision Measurement Science and TechnologyChinese Academy of SciencesWuhan 430071China University of Chinese Academy of Sciences Beijing 100049China

Highly charged nickel ions have been suggested as candidates for the ultra-precise optical clock, meanwhile the relevant experiment has been carried out. In the framework of the multiconfiguration Dirac–Hartree–Fock(MCDHF)method, we calculated the hyperfine interaction constants, the Landég-factors, and the electric quadrupole moments for the low-lying states in the 61Ni11+,61Ni12+,61Ni14+, and61Ni15+ ions. These states are clock states of the selected clock transitions in highly charged nickel ions(see Fig. 1). Based on discussing the effects of the electron correlations, the Breit interaction, and quantum electrodynamics(QED) effect on these physical quantities, reasonable uncertainties were obtained for our calculated results. In addition, the electric quadrupole frequency shifts and the Zeeman frequency shifts of the clock transitions concerned were analyzed.

关键词： hyperfine interaction Landég-factors electric quadrupole moment multiconfiguration Dirac-Hartree–Fock(MCDHF)method

Weak- and hyperfine-interaction-induced 1s2s ~1S_0→ 1s^2 ~1S_0 E1 transition rates of He-like ions

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Chinese Physics B 2015年第4期24卷 117-123页

作者： Laima Radziūt Erikas Gaidamauskas Gediminas Gaigalas 李冀光董晨钟 Per Jnsson Vilnius University Institute of Theoretical Physics and Astronomy Data Center for High Energy Density Physics Institute of Applied Physics and Computational Mathematics Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province College of Physics and Electronic EngineeringNorthwest Normal University Materials Science and Applied Mathematics Malm University

Weak- and hyperfine-interaction-induced 1 s2s 1S0→ 1S2 1 S0 E 1 transition rates for the isoelectronic sequence of Helike ions have been calculated using the multi-configuration Dirac-Hartree-Fock （MCDHF） and relativistic configuration interaction methods. The results should be helpful for the future experimental investigations of parity non-conservation effects.

关键词： parity non-conservation effect hyperfine interaction MCDHF method

Nuclear spin induced collapse and revival shape of Rabi oscillations of a single electron spin in diamond

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Chinese Physics B 2011年第11期20卷 499-505页

作者：胡欣刘东奇潘新宇 Institute of Physics Chinese Academy of Sciences School of Physics Nankai University

A collapse and revival shape of Rabi oscillations in an electron spin of a single nitrogen-vacancy centre has been observed in diamond at room temperature. Because of hyperfine interaction between the host ^14N nuclear spin and the nitrogen-vacancy centre electron spin, different orientations of the ^14N nuclear spins lead to a triplet splitting of the transition between ground state （ms = 0） and excited state （ms=1）. The manipulation of the single electron spin of nitrogen-vacancy centre is achieved by using a combination of selective microwave excitation and optical pumping at 532 nm. Microwaves can excite three transitions equally to induce three independent nutations and the shape of Rabi oscillations is a combination of the three nutations.

关键词： nitrogen-vacancy centre single electron spin Rabi oscillations hyperfine interaction

Organic magnetoresistance based on hopping theory

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Chinese Physics B 2014年第9期23卷 404-408页

作者：杨福江解士杰 School of Physics State Key Laboratory of Crystal MaterialsShandong University

For the organic magnetoresistance （OMAR） effect, we suggest a spin-related hopping of carriers （polarons） based on Marcus theory. The mobility of polarons is calculated with the master equation （ME） and then the magnetoresistance （MR） is obtained. The theoretical results are consistent with the experimental observation. Especially, the sign inversion of the MR under different driving bias voltages found in the experiment is predicted. Besides, the effects of molecule disorder, hyperfine interaction （HFI）, polaron localization, and temperature on the MR are investigated.

关键词： hopping organic magnetoresistance master equation hyperfine interaction

Laser-induced NMR shift of a paramagnetic system

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Chinese Journal of Chemistry 1999年第6期17卷 570-578,3页

作者：李莉陈东明何天敬王秀燕刘凡镇 Department of Chemical Physics University of Science and Technology of China Hefei Anhui 230026 China

Perturbation theory on optical ac stark effect is applied to study the NMR spectroscopy in paramagnetic systems. Application of the circularly or linearly polarized optical field would lead to shifts in the NMR line, ... 详细信息

关键词： Light shift NMR hyperfine interaction paramagnetic system