Electron paramagnetic resonance of some ABX3 compounds |
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| Affiliation: | 1. Department of Physics, Faculty of Arts and Sciences, Ondokuz Mayıs University, Samsun, Turkey;2. Department of Physics, Faculty of Arts and Sciences, Gebze Institute of Technology, Istanbul, Turkey;1. Department of Chemistry, University of Rhode Island, 140 Flagg Road, Kingston, RI 02881, United States;2. Department of Chemical Engineering, Rochester Institute of Technology, Rochester, NY, United States;1. School of Physics and Electronic Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China;2. Multi-discipline Research Center, Institute of High Energy Physics, CAS, Beijing 100049, China;1. Department of Engineering Physics, Electronics and Mechanics, Graduate School of Engineering, Nagoya Institute of Technology, Showa-ku, Nagoya 466-8555, Japan;2. Department of Physical Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology, Showa-ku, Nagoya 466-8555, Japan;3. Department of Chemistry, Graduate School of Science, Hiroshima University, Higashihiroshima, Hiroshima 739-8526, Japan;1. Research Facility Center for Science and Technology, Kobe University, Nada, Kobe 657-8501, Japan;2. Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan;3. Molecular Photoscience Research Center, Kobe University, Nada, Kobe 657-8501, Japan;4. Institute for Solid State Physics, University of Tokyo, Chiba 277-8581, Japan;5. Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan;6. Department of Applied Physics, Tohoku University, Sendai 980-8579, Japan |
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| Abstract: | Electron paramagnetic resonance studies of NaMnCl3, KMnCl3, KCuCl3, NH4CuCl3 were made between 400 and 5 K. The peak-to-peak derivative linewidths of these substances were found to be 14, 70, 10 and 5 mT, respectively. The line splitting below 15 K in NaMnCl3 was attributed to hyperfine interaction with the Mn2+ nucleus. The g values and the peak-to-peak derivative linewidths of KMnCl3, KCuCl3 and NH4CuCl3 were found to be temperature independent within the limits of experimental errors. The g values of NaMnCl3 and KMnCl3 are isotropic, however, of KCuCl3 and NH4CuCl3 are slightly anisotropic at room temperature and their principal values were determined. Hyperfineless structure of the spectra and the broad linewidths seem to be mainly due to exchange interactions of Mn2+ and Cu2+ ions among themselves in the respective compounds. |
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