The deterministic Landau-Lifshitz-Gilbert equation has been used to investigate the nonlinear dynamics of magnetization and the specific loss power in magnetic nanoparticles with uniaxial anisotropy driven by a rotating magnetic field. We propose a new type of applied field, which is "simultaneously rotating and alternating," i.e., the direction of the rotating external field changes periodical...

We report on high-field magnetic properties of the silver vanadium phosphate Ag2VOP2O7. This compound has a layered crystal structure, but the specific topology of the V–P–O framework gives rise to a one-dimensional spin system, a frustrated alternating chain. Low-field magnetization measurements and band structure calculations show that Ag2VOP2O7 is close to the dimer limit with the largest ne...

The measurement of the impedance of biological tissue can be a non-invasive method to find new data of diagnostic relevance. A system for a noncontact measurement of the electrical impedance of biological tissue is presented. The system consists of an excitation coil and two sensing coils coupled together as a gradiometer. The excitation coil is driven by an alternating current. Due to this alt...

Controllable alternating induction magnetic field generation technology which induces plant seeds to breed on floor space has been developed. The incentive ferrite induction coil is used in the device to produce induced magnetic field. The common AC-DC-AC topology was adopted for the variable frequency power supply, realizing the VF. AC-DC-AC AC power inverter circuit adopts SPWM inverter frequ...