30 results about "Magnon" patented technology

A magnon crystal magnetic sensor and a preparation method thereof belong to the technical field of magnetic sensing. The magnetic sensor includes a gadolinium gallium garnet substrate, a yttrium iron garnet film on the gadolinium gallium garnet substrate, a magnetostatic surface wave excitation antenna and a receiving antenna on the YIG, a zinc oxide film on the YIG and Equidistant interdigitated electrodes with reflective grids on top of ZnO film. The magnon crystal magnetic sensor provided by the present invention realizes magnetic detection by using the linear relationship between the slight change of the external magnetic field and the offset of the absorption peak of SMSW propagating in the magnon crystal. The SAW frequency obtained by the method of the invention is relatively high, which can effectively improve the temperature stability of the magnon bandgap structure, and further improve the temperature stability of the magnetic sensor.

The invention discloses a mcrostrip-gap incentive broadband electric-magnetic vibrator combined antenna. A gap is etched in a shielding conductor of a dielectric substrate with a dielectric constant ranging from 2 to 20, a microstrip feeder and a tuning supporting node are manufactured on the other face of the dielectric substrate, an antenna body of a dipole-groove line combination structure is vertically connected to a position above the gap, the antenna body of the dipole-groove line combination structure is formed in the mode that a top-layer radiation unit and a bottom-layer radiation unit which are antisymmetrical are designed on the dielectric substrate with the dielectric constant ranging from 2 to 20 in a combined mode, and the top-layer radiation unit and the bottom-layer radiation unit are connected to the two sides of the gap in a crossed mode. An eccentric microstrip line feed mode is adopted, the position of a feeding point, the length of the feeder, the length of the tuning supporting node and the length of a vibrator are changed, the broadband beam antenna with good performance can be obtained, under the condition of not adding a reflection back cavity, high gains and a stable directional diagram can be obtained, the structure is simple and manufacturing cost is low.

A method, device, computer storage medium, and terminal for constructing a logic gate, comprising: non-resonantly driving ion electric quadrupole moment transition to generate a phase shift related to the quantum state of the ion; generating a phase shift related to the quantum state of the ion After the associated phase shift, a single-bit operation is performed on the ion to obtain a two-qubit controllable geometric phase logic gate; wherein, the phase shift associated with the quantum state of the ion is used to: by the hyperfine energy level structure middle two m F On the qubit |0>, |1> state formed by the magnon energy level of 0. In the embodiment of the present invention, after the phase shift related to the quantum state is generated by the electric quadrupole moment transition, a single-bit operation is performed on the ion, and the energy level m of the magneton is realized. F Geometric phase logic gates on qubits of 0.

A method of tunable generation of terahertz radiation comprising: (A) providing a magnon gain medium; wherein the magnon gain medium supports generation of nonequilibrium magnons; (B) generating terahertz radiation in the magnon gain medium; and (C) tuning frequency of the terahertz radiation by causing changes in an external parameter. The substantial tuning of the frequency of the generated terahertz radiation can be achieved by applying an external magnetic field, and by causing changes in a value of the external magnetic field.

A method for tuning the frequency of THz radiation is provided. The method utilizes an apparatus comprising a spin injector, a tunnel junction coupled to the spin injector, and a ferromagnetic material coupled to the tunnel junction. The ferromagnetic material comprises a Magnon Gain Medium (MGM). The method comprises the step of applying a bias voltage to shift a Fermi level of the spin injector with respect to the Fermi level of the ferromagnetic material to initiate generation of non-equilibrium magnons by injecting minority electrons into the Magnon Gain Medium. The method further comprises the step of tuning a frequency of the generated THz radiation by changing the value of the bias voltage.