Zobrazeno 1 - 10
of 164
pro vyhledávání: '"Beloborodov, I. S."'
Autor:
Udalov, O. G., Beloborodov, I. S.
Publikováno v:
Phys. Rev. B 100, 155102 (2019)
We consider phase separated states in magnetic oxides (MO) thin films. We show that these states have a non-zero electric polarization. Moreover, the polarization is intimately related to a spatial distribution of magnetization in the film. Polarized
Externí odkaz:
http://arxiv.org/abs/1909.09176
Autor:
Udalov, O. G., Beloborodov, I. S.
We investigate the phase separated inhomogeneous charge and spin states in magnetic oxides. In particular, we study one dimensional harmonic waves and stripe structures. We show that harmonic spin charge waves are unstable and inevitably transform in
Externí odkaz:
http://arxiv.org/abs/1904.10053
Autor:
Vdovichev, S. N., Gusev, N. S., Gusev, S. A., Budarin, L. I., Tatarskiy, D. A., Ermolaeva, O. L., Rogov, V. V., Udalov, O. G., Beloborodov, I. S., Demidov, E. S., Fraerman, A. A.
We experimentally study the interlayer interaction in a magnetic multilayer system ferromagnet/insulator/ferromagnet with different spacer thickness. We demonstrate that the sign and the magnitude of the interaction can be deduced from the FMR peak s
Externí odkaz:
http://arxiv.org/abs/1811.09228
Autor:
Udalov, O. G., Beloborodov, I. S.
Publikováno v:
O. G. Udalov and I. S. Beloborodov, Phys. Rev. B 96, 024204 (2017)
We propose a model of magneto-electric effect in doped magnetic ferroelectrics. This magneto-electric effect does not involve the spin-orbit coupling and is based purely on the Coulomb interaction. We calculate magnetic phase diagram of doped magneti
Externí odkaz:
http://arxiv.org/abs/1801.03114
Autor:
Udalov, O. G., Beloborodov, I. S.
Publikováno v:
O. G. Udalov and I. S. Beloborodov, Phys. Rev. B 96, 125425 (2017)
We study interlayer exchange interaction in magnetic tunnel junctions with ferroelectric barrier. We focus on the influence of image forces on the voltage dependence of the interlayer magnetic interaction (magneto-electric effect). The influence of t
Externí odkaz:
http://arxiv.org/abs/1801.03113
Autor:
Udalov, O. G., Beloborodov, I. S.
We study influence of image forces on conductance of ferroelectric tunnel junctions. We show that the influence of image forces is twofold: i) they enhance the electro-resistance effect due to polarization hysteresis in symmetric tunnel junctions at
Externí odkaz:
http://arxiv.org/abs/1704.02055
Autor:
Udalov, O. G., Beloborodov, I. S.
Publikováno v:
Phys. Rev. B 95, 045427 (2017)
We study exchange coupling due to the interelectron Coulomb interaction between two ferromagnetic grains embedded into insulating matrix. This contribution to the exchange interaction complements the contribution due to virtual electron hopping betwe
Externí odkaz:
http://arxiv.org/abs/1702.00104
Autor:
Udalov, O. G., Beloborodov, I. S.
Publikováno v:
J. Phys.: Condens. Matter 29 (2017) 175804 (16pp)
We study interlayer exchange coupling (IEC) based on the many-body Coulomb interaction between conduction electrons in magnetic tunnel junction (MTJ). This mechanism complements the known IEC based on virtual electron hopping (or spin currents). We f
Externí odkaz:
http://arxiv.org/abs/1607.00403
Autor:
Udalov, O. G., Beloborodov, I. S.
Publikováno v:
J. Phys.: Condens. Matter 29 (2017) 155801 (14pp)
We develop a theory of the exchange interaction between ferromagnetic (FM) metallic grains embedded into insulating matrix by taking into account the Coulomb blockade effects. For bulk ferromagnets separated by the insulating layer the exchange inter
Externí odkaz:
http://arxiv.org/abs/1606.02622
Publikováno v:
Phys. Rev. B 92, 205416 (2015)
We study conductance of a single electron transistor (SET) with a ferroelectric (or dielectric) layer placed in the gate capacitor. We assume that ferroelectric (FE) has a retarded response with arbitrary relaxation time. We show that in the case of
Externí odkaz:
http://arxiv.org/abs/1512.00062