Nuclear magnetic resonance of orientedMn54nuclei in antiferromagnetic MnCl2·4H2O
Abstract
NMR of oriented $^{54}\mathrm{Mn}$ in antiferromagnetic Mn${\mathrm{Cl}}_{2}$\ifmmode\cdot\else\textperiodcentered\fi{}4${\mathrm{H}}_{2}$O has been studied by monitoring the change in $\ensuremath{\gamma}$-ray intensity. The strongest line has frequency 500.4\ifmmode\pm\else\textpm\fi{}0.1 MHz and weaker lines are observed at 503.5\ifmmode\pm\else\textpm\fi{}0.1 and 507.0\ifmmode\pm\else\textpm\fi{}0.5 MHz. The linewidth is 35\ifmmode\pm\else\textpm\fi{}5 kHz. A value for the hyperfine interaction strength $A=\ensuremath{-}203.8\ifmmode\pm\else\textpm\fi{} 0.1$ MHz is deduced. The 3.1-MHz splitting of the lines is due to second-order magnetic "pseudoquadrupole" interaction (2.7 MHz) and pure quadrupole interaction (0.4 MHz). Point-charge calculations agree fairly well with the latter value.
Related Papers
- → Stroboscopic observation of quadrupole hyperfine interactions(1975)20 cited
- → Fine and hyperfine interactions in CrN and MoN(1999)22 cited
- → Hyperfine and transferred hyperfine interaction of Cr3+ in yal and lual garnets(1971)6 cited
- → Pac studies of spin deviations, pressure induced hyperfine field shifts, and temperature variation of supertransferred hyperfine fields(1977)4 cited
- → On the Hyperfine Structure of the Rotational Spectra of XYZ3-Type Molecule, Where Nuclei Z Have Electric Quadrupole Moments(1951)16 cited