160 citations · 684 across the 23 of their papers we have counts for
23 papers
Mixed Orbital Ground States of Fe2+ in Prussian Blues
A. I. Rykov, J. Wang, T. Zhang +1
We report on the mixed-orbital ground state compounds analogous to the mixed-valence ones. Orbital doublet and singlet ground states of the Fe2+ ion displayed in Moessbauer spectra…
Lineshapes in Nuclear Forward Scattering Frequency Spectra
A. I. Rykov
A new method for investigating the particle size distribution (PSD) is suggested using the nuclear forward scattering (NFS) of synchrotron radiation. The distribution of Weibull-Gn…
Nuclear forward scattering in particulate matter: dependence of lineshape on particle size distribution
A. I. Rykov
In synchrotron Moessbauer spectroscopy, the nuclear exciton polariton manifests itself in the lineshape of the spectra of nuclear forward scattering (NFS) Fourier-transformed from…
Condensation of a tetrahedra rigid-body libration mode in HoBaCo4O7 : the origin of phase transition at 355 K
A. I. Rykov, Y. Ueda, M. Isobe +6
Rietveld profiles, Moessbauer spectra and x-ray absorption fine structure (XAFS) were analyzed through the structural phase transition at Ts = 355 K in HoBaCo4O7. Excess of the oxy…
Anisotropic phonon DOS: the application of Rietveld and Mossbauer texture analysis in aligned powders
A. I. Rykov, M. Seto, Y. Ueda +1
While synthesizing the single crystals of novel materials is not always feasible, orienting the layered polycrystals becomes an attractive method in the studies of angular dependen…
Vibrational abisotropy and quadrupole interactions of Fe substituted into Mn site of the charge and orbitally ordered and disordered layered manganites LnBaMn1.96Fe0.04O5 and LnBaMn1.96Fe0.04O6 (Ln=Y,Gd,Sm,La)
A. I. Rykov, Y. Ueda, K. Nomura +1
A-site ordered manganites LnBaMn1.96Fe0.04O5 and LnBaMn1.96Fe0.04O6 are investigated by x-ray full-profile diffraction and Moessbauer spectroscopy. Powder samples were oriented wit…