Many observations reliably exhibit correlations between the magnetic perturbations and seismic responses, convincing that the magneto-seismicity is not a myth. Magnetic control of the earthquakes is based on physics o...Many observations reliably exhibit correlations between the magnetic perturbations and seismic responses, convincing that the magneto-seismicity is not a myth. Magnetic control of the earthquakes is based on physics of magneto-plasticity, the remarkable phenomenon, which implies generation of the electron spin pairs on the trapped dislocations, in which Coulomb interaction is switched off. Microwave irradiation at Zeeman frequencies in these pairs stimulates the motion of dislocations, inducing release of elastic energy into the safe plastic deformation. Magneto-seismic correlations unambiguously demonstrate that the earthquakes are indeed suppressed by low-frequency (wide and continuous spectrum from Hz to MHz) microwaves The detailed mechanism of this phenomenon is discussed and experimental proofs are given in terms of magneto-plasticity as a feasible means to control earthquakes.展开更多
Based on the scattering theory, we calculate the Josephson current in a junction between two ferromagnetic super-conductors as a function of the interface potential z. We consider the ferromagnetic superconductor （FS...Based on the scattering theory, we calculate the Josephson current in a junction between two ferromagnetic super-conductors as a function of the interface potential z. We consider the ferromagnetic superconductor （FS） in three different Cooper pairing states： spin singlet s-wave pairing （SWP） state, spin triplet opposite spin pairing （OSP） state, and spin triplet equal spin pairing （ESP） state. We find that the critical Josephson current as a function of z shows clear differences among the SWP, OSP, and ESP states. The obtained results can be used as a useful tool for determining the pair symmetry of the ferromagnetic superconductors.展开更多
A universal mechanism of ultrafast 2-electron orbital swap is discovered through 2-photon sequential double ionization of Li.After a 1s electron in Li is ionized by absorbing an extreme ultraviolet photon,the other 2 ...A universal mechanism of ultrafast 2-electron orbital swap is discovered through 2-photon sequential double ionization of Li.After a 1s electron in Li is ionized by absorbing an extreme ultraviolet photon,the other 2 bound electrons located on 2 different shells have either parallel or antiparallel spin orientations.In the latter case,these 2 electrons are in the superposition of the singlet and triplet states with different energies,forming a quantum beat and giving rise to the 2-electron orbital swap with a period of several hundred attoseconds.The orbital swap mechanism can be used to manipulate the spin polarization of photoelectron pairs by conceiving the attosecond-pump attosecond-probe strategy and thus serves as a knob to control spin-resolved multielectron ultrafast dynamics.展开更多
文摘Many observations reliably exhibit correlations between the magnetic perturbations and seismic responses, convincing that the magneto-seismicity is not a myth. Magnetic control of the earthquakes is based on physics of magneto-plasticity, the remarkable phenomenon, which implies generation of the electron spin pairs on the trapped dislocations, in which Coulomb interaction is switched off. Microwave irradiation at Zeeman frequencies in these pairs stimulates the motion of dislocations, inducing release of elastic energy into the safe plastic deformation. Magneto-seismic correlations unambiguously demonstrate that the earthquakes are indeed suppressed by low-frequency (wide and continuous spectrum from Hz to MHz) microwaves The detailed mechanism of this phenomenon is discussed and experimental proofs are given in terms of magneto-plasticity as a feasible means to control earthquakes.
基金Project supported by the Iran National Science Foundation(INSF)
文摘Based on the scattering theory, we calculate the Josephson current in a junction between two ferromagnetic super-conductors as a function of the interface potential z. We consider the ferromagnetic superconductor （FS） in three different Cooper pairing states： spin singlet s-wave pairing （SWP） state, spin triplet opposite spin pairing （OSP） state, and spin triplet equal spin pairing （ESP） state. We find that the critical Josephson current as a function of z shows clear differences among the SWP, OSP, and ESP states. The obtained results can be used as a useful tool for determining the pair symmetry of the ferromagnetic superconductors.
基金supported by the National Natural Science Foundation of China(NSFC)(Grant No.11925405 and No.12274294)the National Key R&D Program of China(2018YFA0404802)。
文摘A universal mechanism of ultrafast 2-electron orbital swap is discovered through 2-photon sequential double ionization of Li.After a 1s electron in Li is ionized by absorbing an extreme ultraviolet photon,the other 2 bound electrons located on 2 different shells have either parallel or antiparallel spin orientations.In the latter case,these 2 electrons are in the superposition of the singlet and triplet states with different energies,forming a quantum beat and giving rise to the 2-electron orbital swap with a period of several hundred attoseconds.The orbital swap mechanism can be used to manipulate the spin polarization of photoelectron pairs by conceiving the attosecond-pump attosecond-probe strategy and thus serves as a knob to control spin-resolved multielectron ultrafast dynamics.
