Barnett field, rotational Doppler effect, and Berry phase studied by nuclear quadrupole resonance with rotation
Barnett field, rotational Doppler effect, and Berry phase studied by nuclear quadrupole resonance with rotation
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通过旋转核四极共振研究巴尼特场、旋转多普勒效应和贝里相
DOI：
10.1103/physrevb.103.174308
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发表时间：
2021
影响因子：
3.7
通讯作者：
Saitoh E.
中科院分区：
文献类型：
--
作者：
Chudo H;Matsuo M;Maekawa S;Saitoh E.
我们报告了用旋转核四极共振（NQR）方法观测到的巴内特场、旋转多普勒效应和Berry相位。我们已经开发了线圈旋转技术，使我们能够系统地研究在涉及信号检测器的旋转，样品的旋转，以及同时旋转的信号检测器和样品的设置旋转的影响。将这些设置应用于NQR测量，我们观察到NQR谱线分裂，其中谱结构在设置中明显不同。通过对这些结构的分析，我们阐明了NQR谱线分裂的起源，并讨论了旋转多普勒效应、巴内特场效应和Berry相位之间的关系。我们还提供了明确的证据之间的差异的旋转多普勒效应和巴内特场和等效的巴内特场和Berry相位。
We report the observation of the Barnett field, rotational Doppler effect, and Berry phase using the rotating nuclear quadrupole resonance (NQR) method. We have developed coil-spinning techniques that enable us to systematically study the effects of rotation in setups involving rotation of the signal detector, rotation of the sample, and simultaneous rotation of both the signal detector and sample. Applying these setups to NQR measurements, we observe NQR line splittings in which the spectral structures are clearly distinct among the setups. By analyzing these structures, we clarify the origin of the NQR line splittings and discuss the relationship between the rotational Doppler effect, Barnett field effect, and Berry phase in terms of the rotational degrees of freedom, such as the relative rotation and the sample rotation itself, and the observation frame of reference. We also provide clear evidence of the difference between the rotational Doppler effect and the Barnett field and the equivalence of the Barnett field and the Berry phase.