Effect of temperature and high pressure on Mn2+ EPR spectra in K3H(SO4)2 fast-proton conductor |
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| Authors: | Adam Ostrowski Aldona Krupska |
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| Affiliation: | 1. Institute of Molecular Physics , Polish Academy of Sciences, ul. Smoluchowskiego 17, 60-179 Poznań, Poland ostrowski@ifmpan.poznan.pl;3. Institute of Molecular Physics , Polish Academy of Sciences, ul. Smoluchowskiego 17, 60-179 Poznań, Poland |
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| Abstract: | The linewidth ΔH pp and spin-Hamiltonian parameters under temperature and high hydrostatic pressure by X-band continuous wave electron paramagnetic resonance in the K3H(SO4)2 crystal were studied. Spin-Hamiltonian parameters, direction cosines and coordination of Mn2+ ion were determined at room temperature. The pressure at 300?MPa leads to the change of hydrogen bond potential and the transition from double well to single well potential moves about 10?K towards a higher temperature. |
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| Keywords: | Proton conductors Phase transitions Electron paramagnetic resonance |
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