@article{acd1fa9a3c864bef9225b62fea5a2abe,
title = "Electric dipole spin resonance in a quantum spin dimer system driven by magnetoelectric coupling",
abstract = "In this Rapid Communication, we propose a mechanism for electric dipole active spin resonance caused by spin-dependent electric polarization in a quantum spin gapped system. This proposal was successfully confirmed by high-frequency electron spin resonance (ESR) measurements of the quantum spin dimer system KCuCl3. ESR measurements by an illuminating linearly polarized electromagnetic wave reveal that the optical transition between the singlet and triplet states in KCuCl3 is driven by an ac electric field. The selection rule of the observed transition agrees with the calculation by taking into account spin-dependent electric polarization. We suggest that spin-dependent electric polarization is effective in achieving fast control of quantum spins by an ac electric field.",
author = "Shojiro Kimura and Masashige Matsumoto and Mitsuru Akaki and Masayuki Hagiwara and Koichi Kindo and Hidekazu Tanaka",
note = "Funding Information: S.K. is grateful to Professor T. Arima and Dr. T. Sakurai for their enlightening comments. This work was partly supported by the Grant-in-Aid for Scientific Research (Grants No. 26620055, No. 25220803, No. 26247058, No. 17H01142, No. 17H02917, and No. 17K05516) from MEXT Japan and by JSPS Core-to-Core Program, A. Advanced Research Networks. This work was performed at the High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku University (Project No. 17H0412), and at the Center for Advanced High Magnetic Field Science in Osaka University under the Visiting Researcher's Program of the Institute for Solid State Physics, The University of Tokyo. Publisher Copyright: {\textcopyright} 2018 American Physical Society.",
year = "2018",
month = apr,
day = "30",
doi = "10.1103/PhysRevB.97.140406",
language = "English",
volume = "97",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "14",
}