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   Articles with "paramagnetic centers" as a keyword



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Paramagnetic centers in graphite oxide according to EPR spectra and DFT calculations

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recommendations! Published in 2020 at "Chemical Physics Letters"

DOI: 10.1016/j.cplett.2020.137722

Abstract: Abstract The first attempt to determine experimentally based structures of paramagnetic centers in graphite oxide is presented. The attribution of satellite signals in electron paramagnetic resonance (EPR) spectra to forbidden transitions was proved by X-… read more here.

Keywords: dft; graphite oxide; paramagnetic centers; epr spectra ... See more keywords

Paramagnetic centers of vanadium and iron in Na-=SUB=-5-=/SUB=-AlF-=SUB=-2-=/SUB=-(PO-=SUB=-4-=/SUB=-)-=SUB=-2-=/SUB=- single crystal

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recommendations! Published in 2023 at "Physics of the Solid State"

DOI: 10.21883/pss.2023.02.55416.530

Abstract: The orientation behavior of the EPR-transitions of uncontrolled V4+ (S=1/2) and Fe3+ (S=5/2) impurity centers in a Na5AlF2(PO4)2 single crystal doped with chromium has been studied. The parameters of the spin Hamiltonian of these centers… read more here.

Keywords: single crystal; sub sub; iron; paramagnetic centers ... See more keywords

Universal Dependence of Nuclear Spin Relaxation on the Concentration of Paramagnetic Centers in Nano- and Microdiamonds

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recommendations! Published in 2022 at "Materials"

DOI: 10.3390/ma15165774

Abstract: An analysis of our data on 1H and 13C spin–lattice and spin–spin relaxation times and rates in aqueous suspensions of purified nanodiamonds produced by detonation technique (DNDs), DNDs with grafted paramagnetic ions, and micro- and… read more here.

Keywords: spin relaxation; concentration paramagnetic; concentration; relaxation ... See more keywords

Cu-Related Paramagnetic Centers in Cu- and (Cu,Y)-Doped ZrO2 Nanopowders

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recommendations! Published in 2025 at "Materials"

DOI: 10.3390/ma18030605

Abstract: In this work, we studied Cu-doped and (Cu,Y)-codoped ZrO2 nanopowders produced through a coprecipitation approach to identify the nature of Cu-related bulk and surface paramagnetic centers. We conducted EPR, NMR, and Raman scattering studies on… read more here.

Keywords: zro2; calcination temperatures; zro2 nanopowders; related paramagnetic ... See more keywords