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FMR fine structure – A tool to investigate the spatial magnetic phase separation phenomena in manganites |
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| Authors: | Oleg Martyanov Valerii Yudanov Roman Lee Nikita Volkov Klara Sablina |
| Institution: | 1. Boreskov Institute of Catalysis, 630090 Novosibirsk, RussiaPhone: +7 383 330 87 67, Fax: +7 383 330 80 56;2. Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia;3. Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia;4. Kirensky Institute of Physics, 660036 Krasnoyarsk, Russia |
| Abstract: | An original approach is proposed to study the magnetic phase separation phenomenon. It is based on the registration of the noise‐like FMR Fine Structure (FMR FS) caused by the magnetic interparticle dipole–dipole interaction between spatially separated ferromagnetic regions. Data obtained for a La0.7Pb0.3MnO3 single crystal point to the existence of spatially separated ferromagnetic regions. It is shown that FMR FS of the La0.7Pb0.3MnO3 single crystal is temperature reversible and disappears at the maximum of magnetoresistance.  |
| Keywords: | 75 47 Lx 75 75 +a 76 50 +g |