We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
NMR on [sup 55]Mn in the ferromagnetic Ni-substituted manganite La[sub 0.6]Pb[sub 0.4]Mn[sub 0.86]Ni[sub 0.14]O[sub 3].
- Authors
Savosta, M. M.; Solov’ev, E. E.
- Abstract
NMR on [sup 55]Mn in the single-crystal manganite La[sub 0.6]Pb[sub 0.4]Mn[sub 0.86]Ni[sub 0.14]O[sub 3](T[sub C]=242 K), which exhibits metallic conductivity below T[sub C], is investigated in the temperature range 61–215 K. At low temperatures, together with a line corresponding to the averaged hyperfine field at the [sup 55]Mn nuclei (the averaging is due to the motion of electronic holes along Mn sites), the NMR spectrum also contains two lines corresponding to localized states Mn[sup 4+] and Mn[sup 3+]. In the temperature range 100–200 K it is found that the complicated NMR spectrum is transformed into a single line on account of a delocalization of the holes in the e[sub g] orbitals of manganese. A comparison of the NMR data with the temperature dependence of the resistivity suggsets that a wide distribution of charge-carrier mobilities exists in the crystal. © 1999 American Institute of Physics.
- Subjects
MANGANITE; FERROMAGNETIC materials; NUCLEAR magnetic resonance
- Publication
JETP Letters, 1999, Vol 70, Issue 8, p533
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/1.568209