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- Title
Paramagnetic properties of Cuban red mud at low temperatures.
- Authors
Shvets, Valentyna
- Abstract
The electron spin resonance (ESR) spectra of Cuban red mud have been measured at three different temperatures: 295 K, 150 K and 77 K. The broad absorption line with resonance fields ~(1.7-1.8) kOe was observed at all temperatures with values of g-factor from 3.602 to 4.020. The temperature decrease resulted in an absorption line appearance with resonance fields of 3.252 kOe (g = 2.067) at 150 K and 3.339 kOe (g = 2.086) at 77 K. The ESR-signal amplitude with resonance fields ~(1.7-1.8) kOe decreases and the ESR-signal amplitude in the field ~3.3 k increases with reduction in temperature.
- Subjects
ELECTRON paramagnetic resonance; IRON oxide nanoparticles; METALLIC oxides; X-ray diffraction; IRON compounds; FERRIC oxide
- Publication
Geology, Geophysics & Environment, 2018, Vol 44, Issue 4, p373
- ISSN
2299-8004
- Publication type
Article
- DOI
10.7494/geol.2018.44.4.373