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Temperature Dependence of the Voltage Induced by Spin Current in a Manganite–Iridate Heterostructure
Shaikhulov T. A. Stankevich K. L. Constantinian K. Y. Demidov V. V. Ovsyannikov G. A. 《Physics of the Solid State》2021,63(10):1532-1535
Physics of the Solid State - The temperature dependence of the voltage induced by spin current is studied in the epitaxial thin-film La0.7Sr0.3MnO3/SrIrO3 heterostructure deposited on a... 相似文献
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Ovsyannikov G. A. Demidov V. V. Shaikhulov T. A. Klimov A. A. Tiercelin N. Pernod P. Nikitov S. A. 《Physics of the Solid State》2019,61(9):1652-1657
Physics of the Solid State - The magnetic properties of heterostructures consisting of two films are studied. The upper layer involves rare-earth intermetallic nanostructured superlattices... 相似文献
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V. A. Atsarkin V. V. Demidov T. A. Shaikhulov 《Journal of Experimental and Theoretical Physics》2020,130(2):228-234
The problem of spin current generation and transformation into electric signals in thin-film ferromagnet/nonmagnetic metal bilayer structures is investigated. This direction is of considerable scientific interest and promising for applications in spintronics. An LSMO/Pt structure consisting of an epitaxial film of ferromagnetic manganite La2/3Sr1/3O3 grown on a single-crystal NdGaO3 substrate and coated with a platinum film has been studied experimentally. The spin current was generated by the spin pumping method upon the excitation of a ferromagnetic resonance in the ferromagnetic layer and was detected by the electric voltage USP arising in the nonmagnetic metal layer due to the inverse spin Hall effect. Owing to its relatively low Curie temperature (~350 K), using LSMO allowed the influence of ferromagnetic-layer magnetization on the spin current generation to be studied in detail in the temperature range 100–350 K. In this case, the influence of the shape of the ferromagnetic resonance line, which is the convolution of homogeneous (Lorentzian) spin packets and inhomogeneous Gaussian broadening (Voigt model), was consistently taken into account. As a result of our analysis of all the parameters defining USP, we have obtained the temperature dependence of the mixed spin conductance, which has turned out to be approximately proportional to the ferromagnet magnetization squared. This result is compared with existing theoretical models. 相似文献
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Physics of the Solid State - Abstract—Temperature dependence of attenuation of magnetic spin precession in two-layer structures with a Pt top layer based on a La0.7Sr0.3MnO3 (LSMO) epitaxial... 相似文献
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Ovsyannikov G. A. Shaikhulov T. A. Shakhunov V. A. Klimov A. A. Preobrazhenskii V. L. Tiercelin N. Pernod P. 《Physics of the Solid State》2019,61(9):1665-1669
Physics of the Solid State - The electron transport properties of strained thin La0.7Ba0.3MnO3 (LBMO) epitaxial films are studied. Films 40–100 nm in thickness were prepared by laser ablation... 相似文献
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G. A. Ovsyannikov T. A. Shaikhulov V. A. Shakhunov V. V. Demidov N. V. Andreev A. E. Pestun V. L. Preobrazhenskii 《Physics of the Solid State》2017,59(11):2198-2202
This is a complex study of the electrophysical and magnetic characteristics of epitaxial manganite La0.7Ba0.3MnO3 (LBMO) films under conditions of crystal structure stresses caused by misfit in the lattice parameters of the LBMO crystal and a substrate. The substrate used had the lattice parameter smaller than that in the LBMO crystal. It is shown that the temperature dependence of the electrical resistance of the films at low temperatures is not dependent on the existence of stresses in the film and agrees well with the calculation with allowance made for the interaction of carriers with magnetic excitations in the presence of strongly correlated electronic states. The study of the ferromagnetic resonance line indicates an inhomogeneity of the ferromagnetic phase in the LBMO films and the increase in the ferromagnetic resonance line width with decreasing temperature. 相似文献
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Shaikhulov T. A. Ovsyannikov G. A. Demidov V. V. Andreev N. V. 《Journal of Experimental and Theoretical Physics》2019,129(1):112-115
Journal of Experimental and Theoretical Physics - A technique is developed to grow epitaxial heterostructures consisting of strontium iridate (SrIrO3) and lanthanum–strontium manganite... 相似文献
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