Phenomenon of Low-Dimensional Magnetism in CK.sub.[alpha], NK.sub.[alpha], and OK.sub.[alpha] Spectra of Carbonates and Nitrates Obtained by the Electron Probe Microanalysis

Primary CK.sub.[alpha], NK.sub.[alpha], and OK.sub.[alpha] spectra are recorded in single crystals of carbonates, nitrites, and nitrates by the electron probe microanalysis (EPMA). The shift and width of the K.sub.[alpha] lines are used for determining the patterns of variations in charge and spin densities around the emitting atom in the low-dimensional magnetics. The method has made it possible to obtain experimental knowledge about the indirect exchange interaction in the study samples of single crystals, including micron-sized ones at room temperature. The structure of resonance levels (plasmons) is identified in the nitrogen spectra in nitrates and nitrites in the conduction bands.