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- Title
Magnetic Resonance Spectrum of a Two-Phase State in Single Crystals of La[sub 0.7]Pb[sub 0.3]MnO[sub 3] Lanthanum Manganite.
- Authors
Petrakovskiı, G. A.; Volkov, N. V.; Vasil’ev, V. N.; Sablina, K. A.
- Abstract
Two absorption lines are observed over a wide temperature range below T[sub c] in the magnetic resonance spectrum of an La[sub 0.7]Pb[sub 0.3]MnO[sub 3] single crystal. These lines correspond to two magnetic phases in the sample. The frequency–field dependence of spectra obtained in the range of microwave radiation frequencies 10–77 GHz allows these phases to be interpreted as ferromagnetic and paramagnetic phases. The phase volume ratio depends on the temperature and the magnitude of the external magnetic field. Features in the temperature behavior of parameters of the magnetic absorption line are observed in the region of the highest magnetic resistance of the sample. The results are interpreted within the mechanism of electronic phase separation. © 2000 MAIK “Nauka / Interperiodica”.
- Subjects
MAGNETIC resonance; MANGANITE; CRYSTALS
- Publication
JETP Letters, 2000, Vol 71, Issue 4, p144
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/1.568300