[en] Hyperfine magnetic fields induced on the nuclei of nonmagnetic ions 139La and 89Y in LaTiO3 and YTiO3, respectively, have been microscopically calculated. The dependence of the hyperfine fields on the orbital and magnetic structures of the compounds under study has been analyzed. The comparative analysis of the calculated and known experimental data confirms the existence of the static orbital structure in lanthanum and yttrium titanates.
Journal
Journal of Experimental and Theoretical Physics; ISSN 1063-7761; 
; CODEN JTPHES; v. 116(5); p. 828-833
; CODEN JTPHES; v. 116(5); p. 828-833
[en] The crystalline structure of pure lanthanum manganite under external hydrostatic pressure has been studied. The behavior of magnetic properties and nuclear magnetic resonance (NMR) spectra under these conditions is theoretically predicted. It is shown that an increase in the Neel temperature with pressure is not only caused by the general contraction of the crystal, but is also related to certain peculiarities in the baric behavior of the orbital structure.
Journal
Journal of Experimental and Theoretical Physics; ISSN 1063-7761; ; CODEN JTPHES; v. 111(2); p. 194-198
; CODEN JTPHES; v. 111(2); p. 194-198