研究目的
Investigating the electronic band structure and transport properties in Thue-Morse aperiodic graphene superlattices with magnetic barriers.
研究成果
The study concludes that the Dirac point in Thue-Morse graphene superlattices shifts along the wavevector axis under magnetic barriers, differing from electric field modulated superlattices. The transmission spectra exhibit angular threshold and asymmetry, and the conductance can be modulated by changing magnetic barrier parameters and aperiodic sequences, suggesting potential applications in electronic filters and modulators.
研究不足
The study is theoretical and does not involve experimental validation. The practical realization of such superlattices with precise magnetic barriers may pose technical challenges.
1：Experimental Design and Method Selection:
The study utilizes the transfer matrix method to analyze the electronic band structure and transport properties in Thue-Morse aperiodic graphene superlattices with magnetic barriers.
2：Sample Selection and Data Sources:
The model considers a graphene superlattice with magnetic barriers produced by the deposition of ferromagnetic stripes.
3：List of Experimental Equipment and Materials:
The study involves theoretical modeling without specific experimental equipment.
4：Experimental Procedures and Operational Workflow:
The methodology includes calculating the electronic dispersion relation and transmission probabilities for the superlattice under various magnetic field intensities and width ratios.
5：Data Analysis Methods:
The analysis involves interpreting the band structures and transmission probabilities to understand the effects of magnetic barriers on electron transport.
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