Mixtures containing the desired weight ratios of 2 3 -Fe O α and γ-AlOOH were homogenized in the planetary mill, then pressed into tablets and heated up to 1200 °C. All samples were characterized by X-ray diffraction, Mössbauer spectroscopy, Field emission scanning electron microscopy and Energy dispersive X-ray analysis. Two types of solid solutions of general formula 12 3 -(Al Fe ) O x x α we...

To address the interplay between local and global effects in magnetic reconnection, axisymmetric numerical simulations for the Magnetic Reconnection Experiment [M. Yamada et al., Phys. Plasmas 4, 1936 (1997)] are performed using the NIMROD code [C.R. Sovinec et al., J. Comp. Phys. 195, 355 (2004)]. The ‘pull’ and ‘push’ modes of the device are simulated both with and without two-fluid effects i...

Central-transition (127)I solid-state nuclear magnetic resonance (SSNMR) spectra are presented for several anhydrous group 2 metal iodides (MgI(2), CaI(2), SrI(2), and BaI(2)), hydrates (BaI(2)·2H(2)O and SrI(2)·6H(2)O), and CdI(2) (4H polytype). Variable offset cumulative spectrum data acquisition coupled with echo pulse sequences and an 'ultrahigh' applied field of 21.1 T were usually suitabl...

The important studies of Peebles, and Bond and Efstathiou have led to the formula Cl = const/[l(l+1)] aimed at describing the lower order multipoles of the CMBR temperature variations caused by density perturbations with the flat spectrum. Clearly, this formula requires amendments, as it predicts an infinitely large monopole C0, and a dipole moment C1 only 6/2 times larger than the quadrupole C...

We show the ferro-rotational nature of commensurate charge density wave (CCDW) in $1T$-$\mathrm{TaS}_2$ and track its dynamic modulations by temperature-dependent time-resolved electric quadrupole rotation anisotropy-second harmonic generation (EQ RA-SHG), respectively. The ultrafast manifest as breathing EQ RA-SHG patterns at three frequencies around reported single CCDW amplitude mode frequen...

The energy shift in molecular spectra due to interaction of the nuclear magnetic quadrupole moment ($M$) with electrons is equal $\ensuremath{\delta}{E}_{M}=M{W}_{M}{P}_{M}$ where ${W}_{M}$ a constant determined by electronic structure molecule and ${P}_{M}$ dimensionless constant. We extended method for calculation parity nonconservation effects triatomic molecules developed Ref. [A. Petrov A....

The B20-type cobalt germanide CoGe was investigated by measuring the specific heat, resistivity, and $^{59}$Co nuclear magnetic resonance (NMR). We observed a phase transition at $T_Q=13.7$ K, evidenced very narrow peak of heat sharp changes spin-spin ($T_2^{-1}$) spin-lattice ($T_1^{-1}$) relaxation rates. fact that entropy release is extremely small Knight shift almost independent temperature...