A Concept for Perpetual Electric Body Based on Topological Vortex Theory Integrating Permanent Magnets and Radioactive Elements (3)
2.2.3 Topological Vortex Material (Order Parameter and Response Unit):
- Function: To serve as the core functional phase, where the collective dynamical behavior of its topological vortex states produces detectable macroscopic electrical signals.
- Mechanism: Under the combined influence of the magnetic environment from the permanent magnet and the perturbations from the radioactive elements, the vortex array may enter a steady-state "dynamic mode." This mode could manifest as:
- Collective Precession: Periodic motion of the vortex cores generates alternating electric fields.
- Vortex-Antivortex Pair Generation and Annihilation: This process is accompanied by fluctuations in local polarization, which could be collected and rectified using designed electrodes.
- Long-term Maintenance of Topological Order: The system resists external disturbances, maintaining a macroscopic electrical polarization.
3. Proposed Implementation Path and Material System
We propose a "core-shell-matrix" composite structure design:
- Core: Consists of shielded radioactive element nanoparticles (e.g., low-energy beta emitters like Strontium-90, Promethium-147).
- Intermediate Layer: A nanoshell of high-coercivity permanent magnetic material (e.g., N48-type NdFeB) to confine and guide the secondary radiation effects from radioactive particles while providing the background magnetic field.
- Matrix: A ferroelectric/multiferroic material hosting polar vortices (e.g., relaxor ferroelectric polymer PVDF-TrFE, or Bismuth Ferrite BFO superlattices) as the host.
- Energy Balance Problem: How can radioactive decay energy be efficiently and directionally converted into the driving force for topological vortices, rather than being dissipated as heat? The energy conversion efficiency of the system must be seriously evaluated.
- Controllability vs. Randomness Contradiction: How can random decay drive a predictable and controllable macroscopic electrical signal? This may require utilizing the principle of stochastic resonance, where the noise (decay perturbation) strength matches the system's intrinsic frequency, amplifying a weak ordered signal.
- Material Radiation Damage: Radioactive decay inevitably leads to the accumulation of material defects, ultimately destroying the long-range ordered crystal lattice essential for topological vortices. Designing material systems with self-healing capabilities or high radiation resistance is crucial.
- Long-Range Correlation of Topological States: How can coherent synchronization of topological vortices be achieved on a macroscopic scale (millimeter and above) to produce a measurable macroscopic voltage/current? Currently, laboratory-observed vortices exist only at the micro-nano scale.
- Characterization and Measurement: How can the dynamic evolution of topological vortices and their correlation with electrical signals be precisely characterized under strong radiation and magnetic fields? This poses extreme demands on experimental techniques.
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