hyperfine


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Adj.1.hyperfine - extremely fine or thin, as in a spectral line split into two or more components; "hyperfine structure"
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
thin - of relatively small extent from one surface to the opposite or in cross section; "thin wire"; "a thin chiffon blouse"; "a thin book"; "a thin layer of paint"
References in periodicals archive ?
Hyperfine constant x [10.sup.-4] [cm.sup.-1] Complex [A.sub.[perpen- [A.sub.[parallel]] dicular to]] [Cr(MFMAQ)[Cl.sub.2]] -- -- [Cu(MFMAQ)Cl([H.sub.2]O)] 163 47 Hyperfine constant x [10.sup.-4] [cm.sup.-1] Complex [A.sub.iso] g.sub.[parallel]] [Cr(MFMAQ)[Cl.sub.2]] 84 -- [Cu(MFMAQ)Cl([H.sub.2]O)] 106 2.34 Hyperfine constant x [10.sup.-4] [cm.sup.-1] Complex [g.sub.[perpen- dicular to]] [g.sub.iso] [Cr(MFMAQ)[Cl.sub.2]] -- 1.97 [Cu(MFMAQ)Cl([H.sub.2]O)] 2.04 2.11 Table 6: Crystallographic data for the Schiff base complexes [Cr(MFMAQ)[Cl.sub.2]], [Co(MFMAQ)Cl([H.sub.2]O)], and [Cu(MFMAQ)Cl([H.sub.2]O)].
They can be distinguished by hyperfine parameters, namely, isomer shift and quadrupole splitting.
Figure 3 presents the Mossbauer spectra measured with and without an external field and the corresponding hyperfine magnetic field (HFF) distributions p([B.sub.hf]) (blue and black lines).
Although Mn(II) hyperfine lines in EPR spectrum and Mn(II) peak in XRD pattern were observed, no Mn(II) peak was seen in EDS pattern.
Thus, thanks to superlattices, the physicists-experimenters have a real possibility of rapidly changing the nature of the magnetic ordering of their hyperfine layers [10, 14], And, finally, they have a real way to control the change within the noticeable limits of the electrical resistance [R.sub.e] of the conductive <<puff>>.
The nuclear hyperfine field, quadrupole splitting, and isomer shift provide very precise information about the electronic and magnetic state of the nuclei, chemical bonds, structure of the local environment, and so on [1, 2].
And because the thickness of the ionization layer of the corona discharge is ignored, the hyperfine spatial resolution of the computational grids is not a necessity when simulating the ions drift in the diffusion area of a corona discharge in a large space domain.
Quantitative analysis of the recorded spectra was conducted on basis of the stochastic relaxation model developed by Blume and Tjon [15], in which the magnetic hyperfine field [B.sub.hf] fluctuates randomly between two directions (+[B.sub.hf] and -[B.sub.hf]) along the symmetry axis of an axially symmetric electric field gradient tensor.
Multilined EPR spectra are generated as a consequence of the interaction between the magnetic spin of the unpaired electron and the nuclear spin of a neighbouring nucleus within the spin trap; this is called hyperfine splitting (Figure 1(b)) [59, 60].
Due to the presence of the nuclear magnetic moment I = 5/2 for [sup.55]Mn, the hyperfine interaction between the electron (S = 5/2) and nuclear spins leads to the observation of the sixth-line pattern centered at g-factor of g [approximately equal to] 2.001(1) and hyperfine constant A of about (9-10) mT.
Millman and Kusch (who, like Rabi, would become a Nobel Laureate in 1955), had first measured the cesium resonance frequency at Columbia in 1940, estimating the frequency of the hyperfine transition as 9191.4 megacycles.