Publications by authors named "Morteza Mohseni"

Article Synopsis
  • Current-induced self-sustained magnetization oscillations in spin-torque nano-oscillators (STNOs) show potential for developing advanced microwave sources and detectors.
  • The study reveals the simultaneous emission of two different microwave frequencies (6 to 10 gigahertz) at very low power levels, which are associated with two coupled oscillation modes that can be adjusted.
  • The research enhances understanding of the interaction between different magnon modes and suggests applications in improving telecommunications and neuromorphic systems through better frequency multiplexing.
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The interfacial Dzyaloshinskii-Moriya Interaction (iDMI) is an antisymmetric exchange interaction that is induced by the broken inversion symmetry at the interface of, e.g., a ferromagnet/heavy metal.

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We show by means of micromagnetic simulations that spin polarizer in nano-contact (NC) spin torque oscillators as the representative of the fixed layer in an orthogonal pseudo-spin valve can be employed to design and to control magnetic droplet soliton nucleation and dynamics. We found that using a tilted spin polarizer layer decreases the droplet nucleation time which is more suitable for high speed applications. However, a tilted spin polarizer increases the nucleation current and decreases the frequency stability of the droplet.

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The radioisotope Y is one of the candidates for the SPECT and Y/Sr generator due to its suitable half-life and decay properties. The proton-induced on the Y target can be used for the production of Y. The present perusal calculated the excitation function for the both Y(p,x)Y direct reaction and decay of Zr via Y(p,3n)Zr → Y → Y indirect reaction using the TALYS-1.

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Gold has two medically useful radioactive isotopes, Au and Au, for locally irradiating and killing tumor cells. Au radionuclide has been produced through the irradiation of the pure gold via Au(n,γ)Au reaction in the Tehran Research Reactor at a thermal neutron flux of 4.5×10ncms for the different irradiation times.

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