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Study of resonant spin-charge effects in thin magnetic films in the vicinity of the phase transition

Keywords:

B.V. Sorokin – Student, MPTI. E-mail: sjrjkin@gmail.com
V.A. Atsarkin – Professor, Head of the laboratory, Kotel’nikov Institute of Radio Engineering, and Electronics Russian Academy of Sciences


The dc voltage arising on epitaxial thin films of rare-earth manganites upon microwave pumping under ferromagnetic resonance conditions has been studied. The temperature dependence of the effect , including the vicinity of the phase transition, is investigated for the first time. The coefficient of the anisotropic magnetoresistance in the manganite under study is shown to be negative; it decreases sharply with approaching the Curie point and vanishes in the paramagnetic phase.
References:
  1. Mecking N., Gui Y.S., Hu C.-M. Microwave photovoltage and photoresistance effects in ferromagnetic microstrips// Phys. Rev. 2007. V. B 76. P. 224430.

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